IHO Nautical Information Processing Working Group - User contributions [en]

NIPWG S-126 envrm cndtn

2022-03-22T11:39:42Z

Briana:

'''Marine Physical Environmental'''

The following sources are available:

The [[:File:Description of S-126.docx|Marine Physical Environmental Conditions Description]] as provided to HSSC.
Please note that althouh the number S-130 is provided in the document, this number has not been confirmed yet. It is just a number, not more.

The [[:File:DPhysical environment test data set_amendend_Jens.docx|Marine Physical Environmental test data set]] drafted by Richard (UKHO) some years ago. This file contains also first mapping ideas. But these ideas were very simple and it is assumed that the new data model will be comprehensive.

An Excel spreadsheet based on the scope discussion SNPWG had back in the year 2005 [[:File:Envrmt based on scope version 1.2 2005_07_22 and extensions.xlsx|Marine Physical Environmental Conditions Scope wih extensions]]. This information is extended with a collection of keywords compiled by Wilfred and Briana some years ago.

A clean Excel spreadsheet where your contrubutions and comments will be collected. It is intended to keep this spreadsheet up-to-date to ensure that always the current status is available.
The first entries have been made in this spreadsheet as an examble. [[:File:Envrmt_Clean table_.xlsx|Marine Physical Environmental Conditions Clean]]

''Marine Physical Environment Background Material''

* Individual contributions to the clean table are available here: [[:File:Envrmt_Table_Combined_Contribs.xlsx|Marine Physical Environment Contributions]]. (Information received as of 22 July, should all have been merged into the main clean table, let me know if anything is missing).

* updated merged Envrmt Table Combined Contribs.xlsx with comments from group (during work on S-131 Marine Harbour Infrastructure March 2021) and collated further needs from various organizations into word document [[:File:S-126-PhysicalEnvironment.docx|S-126 Marine Physical Environment]]

The status of S-126 as of 9/15/21 can be found in the document [[:File:S-126-PhysicalEnvironment.docx|S-126-PhysicalEnvironment.docx]] - highlighted text indicates it has been modeled in a UML diagram.

[[File:S-126UML Overview.jpg]]

File:S-126UML Overview.jpg

2022-03-22T11:39:12Z

Briana: UML diagram for S-126 features and attributes

UML diagram for S-126 features and attributes

Legacy NIPWG entry site

2021-11-16T17:10:36Z

Briana:

Main Page

2021-11-16T14:30:00Z

Briana: updated S-127 broken link

This wiki is being used to support NIPWG working groups. Non NIPWG members e.g. other IHO working group members, marine experts, OEM personnel may contribute if authorised by NIPWG Chairman or Vice Chairman. Contact details can be obtained either at the users list page or [[about|here]].

'''You must be registered and logged in to edit pages. You may apply for an account by asking the NIPWG Chairman to set up an account for you.''' Having received the login details, it is strongly recommended to provide contact details at your user page; refer to [[Special:Listusers|users list pages]] where your account is listed.

The following product specificions are under the remit of NIPWG:

{| style="background:#ccc99; color:black;" border="1" cellpadding="5" cellspacing="0"
!ProdSpec number and link to IHO registry (if available)!!Abstract!!Scope!!Link to Product Specification specific discussion page
|-
|[[https://registry.iho.int/document/list.do?product_ID=S-122 S-122]](Marine Protected Area)||A Marine Protected Area (MPA) is a protected area whose boundaries include an area of the ocean. They include areas of the intertidal or sub-tidal terrain, together with their overlying water and associated flora, fauna, historical and cultural features, which have been reserved by law or other effective means to protect part or all of, the enclosed environment. For example, MPAs may be established to protect fish species, rare habitat area, or entire ecosystems.
MPAs can range from, simple declarations to protect a resource, to areas that are extensively regulated. The degree to which environmental regulations affect shipping varies according to whether MPAs are located in territorial waters, exclusive economic zones, or high seas. These limits are regulated by the law of the sea. Most MPAs are located in the territorial waters of coastal states, where enforcement can be ensured. MPAs can also however be established in a state's exclusive economic zone and even within international waters. For example in 1999, Italy, France and Monaco jointly established a cetacean sanctuary in the Ligurian Sea named the Pelagos Sanctuary for Mediterranean Marine Mammals. This sanctuary includes both national and international waters.
||Datasets conforming to this specification will contain all relevant MPA information for the area of coverage. Additionally there will be relevant metadata data quality, production authority, data sources and publication date.
||no special discussion page available
|-
|[[https://registry.iho.int/document/list.do?product_ID=S-123# S-123]] (Marine Radio Services)||Radio services product specification describe the means to capture availability and reliability of radio stations, radio position fixing
systems, radio beacons, services offering navigational warnings and weather forecasts in the maritime domain. This may include details on the service areas, services offered and instructions for contacting or utilizing these services.
||Datasets conforming to this specification will contain all relevant maritime radio service information for the area of coverage. Additionally, there will be relevant metadata data quality, production authority, data sources and publication date.
||no special discussion page available
|-
|S-125 (Marine Navigational Services)|| Product specification is under development by IALA on behalf of NIPWG||Product specification is under development by IALA on behalf of NIPWG
||no special discussion page available
|-
|S-126 (Marine Physical Environment)||The Marine Physical Environment Product Specification provides historical information on the climate of an area, specifically the weather conditions (temperature, pressure, humidity, etc.) or oceanic phenomenon (currents, sea levels, water characteristics, etc.), of a region.
Functionally, it is expected to aid in the identification of landmarks, entrances, hazards, and points of interest along a marked path – enriching the visuals shown on the nautical chart, as well as to help in decision making on how (and when) best to approach the desired port.
The product specification contains the information used to understand both the dynamic environmental conditions that surround the mariner but also descriptions of the environment that cannot be rendered on a 2D chart without cognitive overload from symbols and chart clutter. It is also intended to aid the user in filtering and presenting the data only when necessary.
The primary users would be the ship itself and the shipping company to use historical data for voyage planning (route, navigation safety, etc.) and to familiarize themselves with an area before entry. Secondary users would be academia and other researchers.
The expected functionality would be Route Planning Mode (planning) use.
||The overall scope of the specification (at the historical level) can be two-fold
1. Wide area—Covers ocean basin or other geographic feature.
2. Small area—Covers individual ports.
||[[http://wp12183585.server-he.de/npubwiki/wiki/index.php/NIPWG_S-126_envrm_cndtn Physical Environment discussions]]
|-
|[[https://registry.iho.int/document/list.do?product_ID=S-127 S-127]] (Marine Traffic Management)||Marine Traffic Management (MTM) datasets describe the availability and reliability of vessel traffic services, pilotage, routing measures, and ship reporting systems. This includes their service areas, services offered, and instructions for contacting or utilizing these services. MTM is intended to be a supplement to ENC, and therefore does not describe the geographic information in detail equal to ENC, rather it is shown as a simplified geometry to indicate location, and to be a means of geolocating more regulatory information than the typical ENC.||Datasets conforming to this specification will contain all relevant MTM information for the area of coverage. Additionally, there will be relevant metadata data quality, production authority, data sources, and publication date.
||[[http://wp12183585.server-he.de/npubwiki/wiki/index.php/NIPWG_S-127_traffic_management_discussions Traffic Management Discussions]]
|-
|S-128 (Catalogue of Nautical Products)||Catalogue of Nautical Products (CNP) datasets describe the availability and reliability of paper chart, ENC, S-100 based nautical products, application for navigational purpose, online service and e-Navigation services. This includes their issue date, publication status, producing agency, source indication. CNP is intended to exchange status of nautical products and to be a supplement to ENC, and therefore does not describe the geographic information in detail equal to ENC, rather it is shown as a coverage of nautical products.||Datasets conforming to this specification will contain catalogue of all relevant nautical products information for the area of coverage such as paper chart, ENC, Nautical publication, S-100 based nautical products and e-Navigation services.
||no special discussion page available
|-
|S-131 (Marine Harbour Infrastructure)||The Marine Harbour Infrastructure product intended use is to raise situational awareness before approaching a harbour.
Knowing a priori the layout of the berths as well as the services offered for berthing procedure and alongside is important in the berth-to-berth route planning process for an efficient harbour call.
Knowing all the services they need while at port are available and accessible as well as having a smooth transition into their berthing position.
The data will be able to be filtered according to needs to help reduce the cognitive burden on the mariner and presented in a way that is compact, organised and easily accessible.
This information is also useful for shipping companies, brokers and other in the industry to optimize their planning.
||The Marine Harbour Infrastructure describes relevant and data on harbour infrastructure, facilities and services in a harmonised form.
The main source of the data is information from harbour masters.
||[[http://wp12183585.server-he.de/npubwiki/wiki/index.php/NIPWG_S-1xx_hrb_infrstrctr Harbour Infrastructure discussions]]
|}

'''''The main functions of the wiki will be explained at the [[Help:Contents|Help pages.]] '''''

Main Page

2021-11-16T14:28:54Z

Briana: updated S-122 broken link

This wiki is being used to support NIPWG working groups. Non NIPWG members e.g. other IHO working group members, marine experts, OEM personnel may contribute if authorised by NIPWG Chairman or Vice Chairman. Contact details can be obtained either at the users list page or [[about|here]].

'''You must be registered and logged in to edit pages. You may apply for an account by asking the NIPWG Chairman to set up an account for you.''' Having received the login details, it is strongly recommended to provide contact details at your user page; refer to [[Special:Listusers|users list pages]] where your account is listed.

The following product specificions are under the remit of NIPWG:

{| style="background:#ccc99; color:black;" border="1" cellpadding="5" cellspacing="0"
!ProdSpec number and link to IHO registry (if available)!!Abstract!!Scope!!Link to Product Specification specific discussion page
|-
|[[https://registry.iho.int/document/list.do?product_ID=S-122 S-122]](Marine Protected Area)||A Marine Protected Area (MPA) is a protected area whose boundaries include an area of the ocean. They include areas of the intertidal or sub-tidal terrain, together with their overlying water and associated flora, fauna, historical and cultural features, which have been reserved by law or other effective means to protect part or all of, the enclosed environment. For example, MPAs may be established to protect fish species, rare habitat area, or entire ecosystems.
MPAs can range from, simple declarations to protect a resource, to areas that are extensively regulated. The degree to which environmental regulations affect shipping varies according to whether MPAs are located in territorial waters, exclusive economic zones, or high seas. These limits are regulated by the law of the sea. Most MPAs are located in the territorial waters of coastal states, where enforcement can be ensured. MPAs can also however be established in a state's exclusive economic zone and even within international waters. For example in 1999, Italy, France and Monaco jointly established a cetacean sanctuary in the Ligurian Sea named the Pelagos Sanctuary for Mediterranean Marine Mammals. This sanctuary includes both national and international waters.
||Datasets conforming to this specification will contain all relevant MPA information for the area of coverage. Additionally there will be relevant metadata data quality, production authority, data sources and publication date.
||no special discussion page available
|-
|[[https://registry.iho.int/document/list.do?product_ID=S-123# S-123]] (Marine Radio Services)||Radio services product specification describe the means to capture availability and reliability of radio stations, radio position fixing
systems, radio beacons, services offering navigational warnings and weather forecasts in the maritime domain. This may include details on the service areas, services offered and instructions for contacting or utilizing these services.
||Datasets conforming to this specification will contain all relevant maritime radio service information for the area of coverage. Additionally, there will be relevant metadata data quality, production authority, data sources and publication date.
||no special discussion page available
|-
|S-125 (Marine Navigational Services)|| Product specification is under development by IALA on behalf of NIPWG||Product specification is under development by IALA on behalf of NIPWG
||no special discussion page available
|-
|S-126 (Marine Physical Environment)||The Marine Physical Environment Product Specification provides historical information on the climate of an area, specifically the weather conditions (temperature, pressure, humidity, etc.) or oceanic phenomenon (currents, sea levels, water characteristics, etc.), of a region.
Functionally, it is expected to aid in the identification of landmarks, entrances, hazards, and points of interest along a marked path – enriching the visuals shown on the nautical chart, as well as to help in decision making on how (and when) best to approach the desired port.
The product specification contains the information used to understand both the dynamic environmental conditions that surround the mariner but also descriptions of the environment that cannot be rendered on a 2D chart without cognitive overload from symbols and chart clutter. It is also intended to aid the user in filtering and presenting the data only when necessary.
The primary users would be the ship itself and the shipping company to use historical data for voyage planning (route, navigation safety, etc.) and to familiarize themselves with an area before entry. Secondary users would be academia and other researchers.
The expected functionality would be Route Planning Mode (planning) use.
||The overall scope of the specification (at the historical level) can be two-fold
1. Wide area—Covers ocean basin or other geographic feature.
2. Small area—Covers individual ports.
||[[http://wp12183585.server-he.de/npubwiki/wiki/index.php/NIPWG_S-126_envrm_cndtn Physical Environment discussions]]
|-
|[[http://registry.iho.int/beta/productspec/view.do?idx=175&product_ID=S-127&statusS=5&domainS=ALL&category=product_ID&searchValue= S-127]] (Marine Traffic Management)||Marine Traffic Management (MTM) datasets describe the availability and reliability of vessel traffic services, pilotage, routing measures, and ship reporting systems. This includes their service areas, services offered, and instructions for contacting or utilizing these services. MTM is intended to be a supplement to ENC, and therefore does not describe the geographic information in detail equal to ENC, rather it is shown as a simplified geometry to indicate location, and to be a means of geolocating more regulatory information than the typical ENC.||Datasets conforming to this specification will contain all relevant MTM information for the area of coverage. Additionally, there will be relevant metadata data quality, production authority, data sources, and publication date.
||[[http://wp12183585.server-he.de/npubwiki/wiki/index.php/NIPWG_S-127_traffic_management_discussions Traffic Management Discussions]]
|-
|S-128 (Catalogue of Nautical Products)||Catalogue of Nautical Products (CNP) datasets describe the availability and reliability of paper chart, ENC, S-100 based nautical products, application for navigational purpose, online service and e-Navigation services. This includes their issue date, publication status, producing agency, source indication. CNP is intended to exchange status of nautical products and to be a supplement to ENC, and therefore does not describe the geographic information in detail equal to ENC, rather it is shown as a coverage of nautical products.||Datasets conforming to this specification will contain catalogue of all relevant nautical products information for the area of coverage such as paper chart, ENC, Nautical publication, S-100 based nautical products and e-Navigation services.
||no special discussion page available
|-
|S-131 (Marine Harbour Infrastructure)||The Marine Harbour Infrastructure product intended use is to raise situational awareness before approaching a harbour.
Knowing a priori the layout of the berths as well as the services offered for berthing procedure and alongside is important in the berth-to-berth route planning process for an efficient harbour call.
Knowing all the services they need while at port are available and accessible as well as having a smooth transition into their berthing position.
The data will be able to be filtered according to needs to help reduce the cognitive burden on the mariner and presented in a way that is compact, organised and easily accessible.
This information is also useful for shipping companies, brokers and other in the industry to optimize their planning.
||The Marine Harbour Infrastructure describes relevant and data on harbour infrastructure, facilities and services in a harmonised form.
The main source of the data is information from harbour masters.
||[[http://wp12183585.server-he.de/npubwiki/wiki/index.php/NIPWG_S-1xx_hrb_infrstrctr Harbour Infrastructure discussions]]
|}

'''''The main functions of the wiki will be explained at the [[Help:Contents|Help pages.]] '''''

Main Page

2021-11-16T14:27:28Z

Briana: updated S-123 broken link

This wiki is being used to support NIPWG working groups. Non NIPWG members e.g. other IHO working group members, marine experts, OEM personnel may contribute if authorised by NIPWG Chairman or Vice Chairman. Contact details can be obtained either at the users list page or [[about|here]].

'''You must be registered and logged in to edit pages. You may apply for an account by asking the NIPWG Chairman to set up an account for you.''' Having received the login details, it is strongly recommended to provide contact details at your user page; refer to [[Special:Listusers|users list pages]] where your account is listed.

The following product specificions are under the remit of NIPWG:

{| style="background:#ccc99; color:black;" border="1" cellpadding="5" cellspacing="0"
!ProdSpec number and link to IHO registry (if available)!!Abstract!!Scope!!Link to Product Specification specific discussion page
|-
|[[http://registry.iho.int/beta/productspec/view.do?idx=73&product_ID=S-122&statusS=ALL&domainS=ALL&category=product_ID&searchValue= S-122]](Marine Protected Area)||A Marine Protected Area (MPA) is a protected area whose boundaries include an area of the ocean. They include areas of the intertidal or sub-tidal terrain, together with their overlying water and associated flora, fauna, historical and cultural features, which have been reserved by law or other effective means to protect part or all of, the enclosed environment. For example, MPAs may be established to protect fish species, rare habitat area, or entire ecosystems.
MPAs can range from, simple declarations to protect a resource, to areas that are extensively regulated. The degree to which environmental regulations affect shipping varies according to whether MPAs are located in territorial waters, exclusive economic zones, or high seas. These limits are regulated by the law of the sea. Most MPAs are located in the territorial waters of coastal states, where enforcement can be ensured. MPAs can also however be established in a state's exclusive economic zone and even within international waters. For example in 1999, Italy, France and Monaco jointly established a cetacean sanctuary in the Ligurian Sea named the Pelagos Sanctuary for Mediterranean Marine Mammals. This sanctuary includes both national and international waters.
||Datasets conforming to this specification will contain all relevant MPA information for the area of coverage. Additionally there will be relevant metadata data quality, production authority, data sources and publication date.
||no special discussion page available
|-
|[[https://registry.iho.int/document/list.do?product_ID=S-123# S-123]] (Marine Radio Services)||Radio services product specification describe the means to capture availability and reliability of radio stations, radio position fixing
systems, radio beacons, services offering navigational warnings and weather forecasts in the maritime domain. This may include details on the service areas, services offered and instructions for contacting or utilizing these services.
||Datasets conforming to this specification will contain all relevant maritime radio service information for the area of coverage. Additionally, there will be relevant metadata data quality, production authority, data sources and publication date.
||no special discussion page available
|-
|S-125 (Marine Navigational Services)|| Product specification is under development by IALA on behalf of NIPWG||Product specification is under development by IALA on behalf of NIPWG
||no special discussion page available
|-
|S-126 (Marine Physical Environment)||The Marine Physical Environment Product Specification provides historical information on the climate of an area, specifically the weather conditions (temperature, pressure, humidity, etc.) or oceanic phenomenon (currents, sea levels, water characteristics, etc.), of a region.
Functionally, it is expected to aid in the identification of landmarks, entrances, hazards, and points of interest along a marked path – enriching the visuals shown on the nautical chart, as well as to help in decision making on how (and when) best to approach the desired port.
The product specification contains the information used to understand both the dynamic environmental conditions that surround the mariner but also descriptions of the environment that cannot be rendered on a 2D chart without cognitive overload from symbols and chart clutter. It is also intended to aid the user in filtering and presenting the data only when necessary.
The primary users would be the ship itself and the shipping company to use historical data for voyage planning (route, navigation safety, etc.) and to familiarize themselves with an area before entry. Secondary users would be academia and other researchers.
The expected functionality would be Route Planning Mode (planning) use.
||The overall scope of the specification (at the historical level) can be two-fold
1. Wide area—Covers ocean basin or other geographic feature.
2. Small area—Covers individual ports.
||[[http://wp12183585.server-he.de/npubwiki/wiki/index.php/NIPWG_S-126_envrm_cndtn Physical Environment discussions]]
|-
|[[http://registry.iho.int/beta/productspec/view.do?idx=175&product_ID=S-127&statusS=5&domainS=ALL&category=product_ID&searchValue= S-127]] (Marine Traffic Management)||Marine Traffic Management (MTM) datasets describe the availability and reliability of vessel traffic services, pilotage, routing measures, and ship reporting systems. This includes their service areas, services offered, and instructions for contacting or utilizing these services. MTM is intended to be a supplement to ENC, and therefore does not describe the geographic information in detail equal to ENC, rather it is shown as a simplified geometry to indicate location, and to be a means of geolocating more regulatory information than the typical ENC.||Datasets conforming to this specification will contain all relevant MTM information for the area of coverage. Additionally, there will be relevant metadata data quality, production authority, data sources, and publication date.
||[[http://wp12183585.server-he.de/npubwiki/wiki/index.php/NIPWG_S-127_traffic_management_discussions Traffic Management Discussions]]
|-
|S-128 (Catalogue of Nautical Products)||Catalogue of Nautical Products (CNP) datasets describe the availability and reliability of paper chart, ENC, S-100 based nautical products, application for navigational purpose, online service and e-Navigation services. This includes their issue date, publication status, producing agency, source indication. CNP is intended to exchange status of nautical products and to be a supplement to ENC, and therefore does not describe the geographic information in detail equal to ENC, rather it is shown as a coverage of nautical products.||Datasets conforming to this specification will contain catalogue of all relevant nautical products information for the area of coverage such as paper chart, ENC, Nautical publication, S-100 based nautical products and e-Navigation services.
||no special discussion page available
|-
|S-131 (Marine Harbour Infrastructure)||The Marine Harbour Infrastructure product intended use is to raise situational awareness before approaching a harbour.
Knowing a priori the layout of the berths as well as the services offered for berthing procedure and alongside is important in the berth-to-berth route planning process for an efficient harbour call.
Knowing all the services they need while at port are available and accessible as well as having a smooth transition into their berthing position.
The data will be able to be filtered according to needs to help reduce the cognitive burden on the mariner and presented in a way that is compact, organised and easily accessible.
This information is also useful for shipping companies, brokers and other in the industry to optimize their planning.
||The Marine Harbour Infrastructure describes relevant and data on harbour infrastructure, facilities and services in a harmonised form.
The main source of the data is information from harbour masters.
||[[http://wp12183585.server-he.de/npubwiki/wiki/index.php/NIPWG_S-1xx_hrb_infrstrctr Harbour Infrastructure discussions]]
|}

'''''The main functions of the wiki will be explained at the [[Help:Contents|Help pages.]] '''''

NIPWG S-126 envrm cndtn

2021-09-15T14:06:33Z

Briana:

File:Envrmt Clean table .xlsx

2021-09-15T14:05:35Z

Briana: Briana uploaded a new version of "File:Envrmt Clean table .xlsx"

NIPWG S-126 envrm cndtn

2021-09-15T13:16:05Z

Briana:

'''Marine Physical Environmental'''

The following sources are available:

The [[:File:Description of S-126.docx|Marine Physical Environmental Conditions Description]] as provided to HSSC.
Please note that althouh the number S-130 is provided in the document, this number has not been confirmed yet. It is just a number, not more.

The [[:File:DPhysical environment test data set_amendend_Jens.docx|Marine Physical Environmental test data set]] drafted by Richard (UKHO) some years ago. This file contains also first mapping ideas. But these ideas were very simple and it is assumed that the new data model will be comprehensive.

An Excel spreadsheet based on the scope discussion SNPWG had back in the year 2005 [[:File:Envrmt based on scope version 1.2 2005_07_22 and extensions.xlsx|Marine Physical Environmental Conditions Scope wih extensions]]. This information is extended with a collection of keywords compiled by Wilfred and Briana some years ago.

A clean Excel spreadsheet where your contrubutions and comments will be collected. It is intended to keep this spreadsheet up-to-date to ensure that always the current status is available.
The first entries have been made in this spreadsheet as an examble. [[:File:Envrmt _Clean table.xlsx|Marine Physical Environmental Conditions Clean]]

''Marine Physical Environment Background Material''

* Individual contributions to the clean table are available here: [[:File:Envrmt_Table_Combined_Contribs.xlsx|Marine Physical Environment Contributions]]. (Information received as of 22 July, should all have been merged into the main clean table, let me know if anything is missing).

* updated merged Envrmt Table Combined Contribs.xlsx with comments from group (during work on S-131 Marine Harbour Infrastructure March 2021) and collated further needs from various organizations into word document [[:File:S-126-PhysicalEnvironment.docx|S-126 Marine Physical Environment]]

The status of S-126 as of 9/15/21 can be found in the document [[:File:S-126-PhysicalEnvironment.docx|S-126-PhysicalEnvironment.docx]] - highlighted text indicates it has been modeled in a UML diagram.

NIPWG S-126 envrm cndtn

2021-09-15T13:10:39Z

Briana:

'''Marine Physical Environmental'''

The following sources are available:

The [[:File:Description of S-126.docx|Marine Physical Environmental Conditions Description]] as provided to HSSC.
Please note that althouh the number S-130 is provided in the document, this number has not been confirmed yet. It is just a number, not more.

The [[:File:DPhysical environment test data set_amendend_Jens.docx|Marine Physical Environmental test data set]] drafted by Richard (UKHO) some years ago. This file contains also first mapping ideas. But these ideas were very simple and it is assumed that the new data model will be comprehensive.

An Excel spreadsheet based on the scope discussion SNPWG had back in the year 2005 [[:File:Envrmt based on scope version 1.2 2005_07_22 and extensions.xlsx|Marine Physical Environmental Conditions Scope wih extensions]]. This information is extended with a collection of keywords compiled by Wilfred and Briana some years ago.

A clean Excel spreadsheet where your contrubutions and comments will be collected. It is intended to keep this spreadsheet up-to-date to ensure that always the current status is available.
The first entries have been made in this spreadsheet as an examble. [[:File:Envrmt _Clean table.xlsx|Marine Physical Environmental Conditions Clean]]

''Marine Physical Environment Background Material''

* Individual contributions to the clean table are available here: [[:File:Envrmt_Table_Combined_Contribs.xlsx|Marine Physical Environment Contributions]]. (Information received as of 22 July, should all have been merged into the main clean table, let me know if anything is missing).

* updated merged Envrmt Table Combined Contribs.xlsx with comments from group (during work on S-131 Marine Harbour Infrastructure March 2021) and collated further needs from various organizations into word document [[:File:S-126-PhysicalEnvironment.docx|S-126 Marine Physical Environment]]

The status of S-126 as of 9/15/21 can be found in the document [[:File:S-126-PhysicalEnvironment.docx|S-126-PhysicalEnvironment.docx]]

File:S-126-PhysicalEnvironment.docx

2021-09-15T13:04:09Z

Briana: Briana uploaded a new version of "File:S-126-PhysicalEnvironment.docx"

A compilation of the NIPWG clean physical environment spreadsheet and comments and extensions added as of March 2021

NIPWG S-131 Harbour Infrastructure

2021-05-11T22:09:23Z

Briana: added links to updated Layout UML diagram and suggested additions to UML diagram

'''S-131 Marine Harbour Infrastructure'''

The following sources are available:

The [[:File:Description of S-xxx Harbour Infrastructure.docx|Hrbr Infrstrctr Description]] as provided to HSSC.

An Excel spreadsheet based on the scope discussion SNPWG had back in the year 2005 [[:File:Hrbr Infrstrctr based on scope version 1.2 2005_07_22 and PortCDM information.xlsx|Hrbr Infrstrctr Scope]]. This information is enhanced with advice on other international bodies activities, such as IMO FAL or PortCDM.

Additional reference materials are the latest version of the [[:File:Port Information Manual.pdf|Port Information Manual]], issued by the International Harbour Master Association (IHMA), and the comments provided by [[:File:Response to IHMA on Port Manual 1.4.5_clean.docx|NIPWG7]] on this Manual. It shoud be noted that the IHMA is working on a revision of the Manual taking into account the NIPWG7 comments. The IHMA Response paper can be found here [[:File:PIM Revision NIPWG7 Paper.docx|IHMA Response on NIPWG comments on PIM version 007]]

A clean Excel spreadsheet where your contributions and comments will be collected. It is intended to keep this spreadsheet up-to-date to ensure that always the current status is available.
The first entries have been made in this spreadsheet as an example. [[:File:Hrbr Infrstrctr_Clean table.xlsx|Hrbr Infrstrctr Clean]]

'''Split of S-131 features in logical groups and respective excel spreadsheets.'''
*Port/Harbour Layout Features [[:File:Port_Harbour_Layout_Features.xlsx|Port_Harbour_Layout_Features]]
** [[:File:S-131-PortHarbour_Layout_v3.pdf| 5/6/21 updated Port/Harbour Layout UML v3]]
*Port/Harbour Physical Infrastructure Features [[:File:Port_Harbour_Physical_Infrstructure_Features.xlsx|Port_Harbour_Physical_Infrastructure_Features]]
*Port/Harbour non-Physical Infrastructure Features [[:File:Port_Harbour_non.Physical_Infrstructure_Features.xlsx|Port_Harbour_non_Physical_Infrastructure_Features]]

'''Update of S-131 features from NIPWG feedback and merged excel spreadsheets - in Word document form (for easy reading)'''

Please note: This is NOT meant to be a comprehensive well-formed document! It is a living, breathing evolving one meant only to be the common collection place for additions to the UML data model.
*Port/Harbour Layout Features [[:File:S-131-Layout.docx|Port_Harbour_Layout_Features_doc]]
** [[:File:Layout-feedback-Updates_v2.pdf| 5/6/21 suggested updates to Port/Harbour Layout UML]] from Port_Harbour_Layout_Features_doc feedback

*Port/Harbour Physical Infrastructure Features [[:File:S-131-PhysicalInfrastructure.docx|Port_Harbour_Physical_Infrastructure_Features_doc]]
*Port/Harbour Services [[:File:S-131_Harbour_Services.docx|Port_Harbour_Services_doc]]

An html version of the UML diagram based on the spreadsheet can be found here: http://wp12183585.server-he.de/npubwiki/S1xxHrbInf/index.htm

The *eapx file of the UML diagram can be found here [[File:UML diagram of S-131 Marine Harbour Infrastructure.eapx]]

''Marine Harbour Infrastructure Background Material''

* NO has kindly provided the data element collection of their NO Coast Pilot. The entries can be used as reference and for completeness check. [[File:NO_port_data_prod_spec.pdf]]
* Sample from Greenland Harbour Pilot ([[:File:Greenlandharbourpilot.xlsx]]) and link to site https://www.gronlandskehavnelods.dk/?&lang=ENG
* List of potential topics [[:File:Harbour_Infrastructure_Topic_List.docx]]
* S-211 Port Call Message Format product specification https://www.ipcdmc.org/standards-and-guidelines
* Taiwan Port Net Extract providing berth position information [[:File:Berth_MooringFacilities_BerthPosition_TaiwanPortNet.pdf|Taiwan Port Net]]
* Individual contributions to the clean table are available here: [[:File:Hrbr_Infrstrctr_Table_Combined_Contribs.xlsx|Harbour Infrastructure Contributions]]. (Information received as of 22 July should all have been merged into the main clean table, let me know if anything is missing).

File:Layout-feedback-Updates v2.pdf

2021-05-11T21:43:03Z

Briana: 5/6/21 UML Layout updates based on the Word document collated feedback.

5/6/21 UML Layout updates based on the Word document collated feedback.

File:S-131-PortHarbour Layout v3.pdf

2021-05-11T21:37:38Z

Briana: Version 3 of Port Harbour Layout for S-131. (as of May 6, 2021)

Version 3 of Port Harbour Layout for S-131. (as of May 6, 2021)

NIPWG S-131 Harbour Infrastructure

2021-04-02T18:56:38Z

Briana: added links to the requested extensions to the excel spreadsheet

'''S-131 Marine Harbour Infrastructure'''

The following sources are available:

The [[:File:Description of S-xxx Harbour Infrastructure.docx|Hrbr Infrstrctr Description]] as provided to HSSC.

An Excel spreadsheet based on the scope discussion SNPWG had back in the year 2005 [[:File:Hrbr Infrstrctr based on scope version 1.2 2005_07_22 and PortCDM information.xlsx|Hrbr Infrstrctr Scope]]. This information is enhanced with advice on other international bodies activities, such as IMO FAL or PortCDM.

Additional reference materials are the latest version of the [[:File:Port Information Manual.pdf|Port Information Manual]], issued by the International Harbour Master Association (IHMA), and the comments provided by [[:File:Response to IHMA on Port Manual 1.4.5_clean.docx|NIPWG7]] on this Manual. It shoud be noted that the IHMA is working on a revision of the Manual taking into account the NIPWG7 comments. The IHMA Response paper can be found here [[:File:PIM Revision NIPWG7 Paper.docx|IHMA Response on NIPWG comments on PIM version 007]]

A clean Excel spreadsheet where your contributions and comments will be collected. It is intended to keep this spreadsheet up-to-date to ensure that always the current status is available.
The first entries have been made in this spreadsheet as an example. [[:File:Hrbr Infrstrctr_Clean table.xlsx|Hrbr Infrstrctr Clean]]

'''Split of S-131 features in logical groups and respective excel spreadsheets.'''
*Port/Harbour Layout Features [[:File:Port_Harbour_Layout_Features.xlsx|Port_Harbour_Layout_Features]]
*Port/Harbour Physical Infrastructure Features [[:File:Port_Harbour_Physical_Infrstructure_Features.xlsx|Port_Harbour_Physical_Infrastructure_Features]]
*Port/Harbour non-Physical Infrastructure Features [[:File:Port_Harbour_non.Physical_Infrstructure_Features.xlsx|Port_Harbour_non_Physical_Infrastructure_Features]]

'''Update of S-131 features from NIPWG feedback and merged excel spreadsheets - in Word document form (for easy reading)'''

Please note: This is NOT meant to be a comprehensive well-formed document! It is a living, breathing evolving one meant only to be the common collection place for additions to the UML data model.
*Port/Harbour Layout Features [[:File:S-131-Layout.docx|Port_Harbour_Layout_Features_doc]]
*Port/Harbour Physical Infrastructure Features [[:File:S-131-PhysicalInfrastructure.docx|Port_Harbour_Physical_Infrastructure_Features_doc]]
*Port/Harbour Services [[:File:S-131_Harbour_Services.docx|Port_Harbour_Services_doc]]

An html version of the UML diagram based on the spreadsheet can be found here: http://wp12183585.server-he.de/npubwiki/S1xxHrbInf/index.htm

The *eapx file of the UML diagram can be found here [[File:UML diagram of S-131 Marine Harbour Infrastructure.eapx]]

''Marine Harbour Infrastructure Background Material''

* NO has kindly provided the data element collection of their NO Coast Pilot. The entries can be used as reference and for completeness check. [[File:NO_port_data_prod_spec.pdf]]
* Sample from Greenland Harbour Pilot ([[:File:Greenlandharbourpilot.xlsx]]) and link to site https://www.gronlandskehavnelods.dk/?&lang=ENG
* List of potential topics [[:File:Harbour_Infrastructure_Topic_List.docx]]
* S-211 Port Call Message Format product specification https://www.ipcdmc.org/standards-and-guidelines
* Taiwan Port Net Extract providing berth position information [[:File:Berth_MooringFacilities_BerthPosition_TaiwanPortNet.pdf|Taiwan Port Net]]
* Individual contributions to the clean table are available here: [[:File:Hrbr_Infrstrctr_Table_Combined_Contribs.xlsx|Harbour Infrastructure Contributions]]. (Information received as of 22 July should all have been merged into the main clean table, let me know if anything is missing).

File:S-131-PhysicalInfrastructure.docx

2021-04-02T18:34:38Z

Briana: Briana uploaded a new version of "File:S-131-PhysicalInfrastructure.docx"

A compilation by UNH on the additional requests from various entities that relate to the S-131 Physical Infrastructure section of the data model.

File:S-131-Layout.docx

2021-04-02T18:33:39Z

Briana: Briana uploaded a new version of "File:S-131-Layout.docx"

A compilation by UNH on the additional requests from various entities that relate to the S-131 Layout section of the data model.

File:S-131 Harbour Services.docx

2021-04-02T17:47:36Z

Briana: A compilation by UNH on the additional requests from various entities that relate to the S-131 Harbour Services section of the data model.

A compilation by UNH on the additional requests from various entities that relate to the S-131 Harbour Services section of the data model.

File:S-131-PhysicalInfrastructure.docx

2021-04-02T17:46:31Z

Briana: A compilation by UNH on the additional requests from various entities that relate to the S-131 Physical Infrastructure section of the data model.

A compilation by UNH on the additional requests from various entities that relate to the S-131 Physical Infrastructure section of the data model.

File:S-131-Layout.docx

2021-04-02T17:45:59Z

Briana: A compilation by UNH on the additional requests from various entities that relate to the S-131 Layout section of the data model.

A compilation by UNH on the additional requests from various entities that relate to the S-131 Layout section of the data model.

NIPWG S-126 envrm cndtn

2021-04-02T17:44:05Z

Briana:

'''Marine Physical Environmental'''

The following sources are available:

The [[:File:Description of S-126.docx|Marine Physical Environmental Conditions Description]] as provided to HSSC.
Please note that althouh the number S-130 is provided in the document, this number has not been confirmed yet. It is just a number, not more.

The [[:File:DPhysical environment test data set_amendend_Jens.docx|Marine Physical Environmental test data set]] drafted by Richard (UKHO) some years ago. This file contains also first mapping ideas. But these ideas were very simple and it is assumed that the new data model will be comprehensive.

An Excel spreadsheet based on the scope discussion SNPWG had back in the year 2005 [[:File:Envrmt based on scope version 1.2 2005_07_22 and extensions.xlsx|Marine Physical Environmental Conditions Scope wih extensions]]. This information is extended with a collection of keywords compiled by Wilfred and Briana some years ago.

A clean Excel spreadsheet where your contrubutions and comments will be collected. It is intended to keep this spreadsheet up-to-date to ensure that always the current status is available.
The first entries have been made in this spreadsheet as an examble. [[:File:Envrmt _Clean table.xlsx|Marine Physical Environmental Conditions Clean]]

''Marine Physical Environment Background Material''

* Individual contributions to the clean table are available here: [[:File:Envrmt_Table_Combined_Contribs.xlsx|Marine Physical Environment Contributions]]. (Information received as of 22 July, should all have been merged into the main clean table, let me know if anything is missing).

* updated merged Envrmt Table Combined Contribs.xlsx with comments from group (during work on S-131 Marine Harbour Infrastructure March 2021) and collated further needs from various organizations into word document [[:File:S-126-PhysicalEnvironment.docx|S-126 Marine Physical Environment]]

File:S-126-PhysicalEnvironment.docx

2021-04-02T17:43:13Z

Briana: A compilation of the NIPWG clean physical environment spreadsheet and comments and extensions added as of March 2021

A compilation of the NIPWG clean physical environment spreadsheet and comments and extensions added as of March 2021

NIPWG S-126 envrm cndtn

2021-04-02T17:39:37Z

Briana:

'''Marine Physical Environmental'''

The following sources are available:

The [[:File:Description of S-126.docx|Marine Physical Environmental Conditions Description]] as provided to HSSC.
Please note that althouh the number S-130 is provided in the document, this number has not been confirmed yet. It is just a number, not more.

The [[:File:DPhysical environment test data set_amendend_Jens.docx|Marine Physical Environmental test data set]] drafted by Richard (UKHO) some years ago. This file contains also first mapping ideas. But these ideas were very simple and it is assumed that the new data model will be comprehensive.

An Excel spreadsheet based on the scope discussion SNPWG had back in the year 2005 [[:File:Envrmt based on scope version 1.2 2005_07_22 and extensions.xlsx|Marine Physical Environmental Conditions Scope wih extensions]]. This information is extended with a collection of keywords compiled by Wilfred and Briana some years ago.

A clean Excel spreadsheet where your contrubutions and comments will be collected. It is intended to keep this spreadsheet up-to-date to ensure that always the current status is available.
The first entries have been made in this spreadsheet as an examble. [[:File:Envrmt _Clean table.xlsx|Marine Physical Environmental Conditions Clean]]

''Marine Physical Environment Background Material''

* Individual contributions to the clean table are available here: [[:File:Envrmt_Table_Combined_Contribs.xlsx|Marine Physical Environment Contributions]]. (Information received as of 22 July, should all have been merged into the main clean table, let me know if anything is missing).

* updated merged Envrmt Table Combined Contribs.xlsx with comments from group (during work on S-131 Marine Harbour Infrastructure March 2021) and collated further needs from various organizations into word document [[:File:S-126-PhysicalEnvironment.doc|S-126 Marine Physical Environment]]

NIPWG S-126 envrm cndtn

2021-04-02T17:38:16Z

Briana: added link to new S-126 document

'''Marine Physical Environmental'''

The following sources are available:

The [[:File:Description of S-126.docx|Marine Physical Environmental Conditions Description]] as provided to HSSC.
Please note that althouh the number S-130 is provided in the document, this number has not been confirmed yet. It is just a number, not more.

The [[:File:DPhysical environment test data set_amendend_Jens.docx|Marine Physical Environmental test data set]] drafted by Richard (UKHO) some years ago. This file contains also first mapping ideas. But these ideas were very simple and it is assumed that the new data model will be comprehensive.

An Excel spreadsheet based on the scope discussion SNPWG had back in the year 2005 [[:File:Envrmt based on scope version 1.2 2005_07_22 and extensions.xlsx|Marine Physical Environmental Conditions Scope wih extensions]]. This information is extended with a collection of keywords compiled by Wilfred and Briana some years ago.

A clean Excel spreadsheet where your contrubutions and comments will be collected. It is intended to keep this spreadsheet up-to-date to ensure that always the current status is available.
The first entries have been made in this spreadsheet as an examble. [[:File:Envrmt _Clean table .xlsx|Marine Physical Environmental Conditions Clean]]

''Marine Physical Environment Background Material''

* Individual contributions to the clean table are available here: [[:File:Envrmt_Table_Combined_Contribs.xlsx|Marine Physical Environment Contributions]]. (Information received as of 22 July, should all have been merged into the main clean table, let me know if anything is missing).

* updated merged Envrmt Table Combined Contribs.xlsx with comments from group (during work on S-131 Marine Harbour Infrastructure March 2021) and collated further needs from various organizations into word document [[:File:S-126-PhysicalEnvironment.doc|S-126 Marine Physical Environment]]

S-126

2020-01-07T16:59:46Z

Briana: /* Currents and Flow */

'''Physical Environment'''
 ''a place to discuss and follow the work''

Knowledgeable WG members: briana sullivan (UNH), Jens Schröder-Fürstenberg (Germany), Tom Loeper (USA), Yves Le Franc (SHOM)

OLD ORIGINAL - Sample Test Data [[FILE:Physical_Environment_Test_Data_Sample.docx]] (NOTE: we are now using real samples from US Coast Pilot and US Sailing Directions)

[http://www.iho.int/mtg_docs/com_wg/NIPWG/NIPWG2/NIPWG%202-22.1%20%20Annex%20A%20Physical_Environment_Test_Data_Sample.pdf NEW listing of terms with data source (Annex A)]

[[FILE: Coast_Chart_Term_Frequency_NIPWG_Version.xlsx]] - a new list of terms compiled from all possible sources related to the Physical Environment that contains statistics on the frequency of word use within the 9 volumes of the US Coast Pilot. It will be used as a guide to focus on terms to research and build use case scenarios so we know what is of value to model and what doesn't need representation.

==Magnetic Variations and Local Anomalies==
*Magnetic Variations
*Magnetic Anomalies

===S-101===
From DCEG
Geo Feature Magnetic Data

====Magnetic Variation - '''MAGVAR''' (4.1)====

S-101 Geo Feature

The angle between the magnetic and geographic meridians at any place, expressed in degrees east or west to indicate the direction of magnetic north from true north. Also called magnetic declination. (IHO Dictionary –S-32).

(until a world magnetic model is universally available for inclusion in ECDIS mag var is most important magnetic data for the mariner. Updates should be supplied every five years to coincide with changes of epoch).

=====S-101 Attributes=====
'''RYRMGV''' - reference year for magnetic variation. (YYYY)
'''VALACM''' - value of annual change in magnetic variation. (+/- minutes: easterly/westerly)
'''SCAMIN''' - scale minimum

====Local Magnetic Anomaly - '''LOCMAG''' (4.2)====

S-101 Geo Feature

An anomaly of the magnetic field of the Earth, extending over a relatively small area, due to local magnetic influences. Also called local attraction or magnetic anomaly. (IHO Dictionary –S-32).

If it is required to encode an abnormality in magnetic variation for a localised area, it must be done using the feature Local Magnetic Anomaly. If the area cannot be defined, the feature should be represented as a point.

=====S-101 Attributes=====
Feature Name
display name
language
name '''OBJNAM/NOBJNM'''
reported date '''SORDAT'''
value of local magnetic anomaly
magnetic anomaly value maximum '''VALLMA'''
magnetic anomaly value minimum
scale minimum '''SCAMIN'''

====Remarks====
Where the mandatory complex attribute value of local magnetic anomaly contains a value in the sub-attribute magnetic anomaly value maximum only, the deviation is assumed to be positive and negative by that amount. Where the positive and negative values for the local magnetic anomaly differ, the positive value must be populated in anomaly value maximum, and the negative value in the sub-attribute magnetic anomaly value minimum. The plus/minus character must not be encoded.

Abnormal magnetic variation should not be encoded unless it varies by more than about 3° from the normal magnetic variation (see clause 4.1) for the area.

===Coast Pilot examples===
(120) Differences of as much as 5° from the normal variation have been observed near the mouth of Smyrna River.

(166) Differences of as much as 2° to 5° from normal variation have been observed along the channel from Artificial Island to Marcus Hook.

(232) Differences of 2° to 5° from normal variation have been observed astride the Delaware River Channel from Oldmans Point to the mouth of Oldmans Creek.

(79) Differences of as much as 6° from the normal variation have been observed in Elk River Channel from Courthouse Point to Old Town Point.

(30) Differences of as much as 6° from the normal variation have been observed 3 to 17 miles offshore from Cape Henry to Currituck Beach Light.

(130) Differences of as much as 5° from the normal variation have been observed in the channel from Pooles Island to Howell Point (chart 12274).

(180) Differences of 3° to 8° from normal variation have been observed in Elk River channel from Grove Point to Courthouse Point.

===Possible Data Elements Needed===
Observation location description - would it be HELPFUL to have the cultural points within the area maintained?

(perhaps it is more understandable for someone to keep in their mind map of the area the familiar names delineating the locations vs only an outline on the chart?)

===NOTES===
For the US... the Magnetic Variation area is the bounds of a given chart...yet the Coast Pilot clearly has variations that are within the magnetic variation bounds of the chart. (Yet there are none encoded in the ENC).

==Ice Conditions==
*Drift Ice
*Icebergs

===S-101===
From DCEG

====Ice Area '''ICEARE''' (5.13)====

S-101 Geo Feature (Surface)

An area of ice over land or water. (S-57 Edition 3.1, Appendix A –Chapter 1, Page 1.84, November 2000).

=====S-101 Attributes=====
category of ice (CATICE)
1 : fast ice
5 : glacier
8 : polar ice
elevation (ELEVAT)
feature name
display name
language
name(OBJNAM)/(NOBJNM)
height (HEIGHT)
periodic date range
date end(PEREND)
date start(PERSTA)
reported date(SORDAT)
status(STATUS)
1 : permanent
5 : periodic/intermittent
18 : existence doubtful
vertical length(VERLEN)
visually conspicuous (CONVIS)
1 : visually conspicuous
2 : not visually conspicuous
3 : prominent
scale minimum (SCAMIN)

====Remarks====
Ice Area features that are located in the sea must be covered by an Unsurveyed Area feature, if the depth of water beneath them is unknown, or covered by a Depth Area feature, if the depth is known.

As ice fronts move, a date when the limit was surveyed should be included, if possible, using the attribute reported date.

Glaciers(see S-4 –B-353.8) If it is required to encode the portion of a glacier that is on land, it must be done using an Ice Area feature, with attribute category of ice= 5 (glacier) covered by a Land Area feature (that is, the glacier does not form a hole in the land area).

If the seaward edge of an encoded glacier is coincident with the coastline, this edge should be encoded using a Coastline feature, with attribute category of coastline=6 (glacier (seaward end)), and the coastline’s spatial type should have the attribute quality of horizontal measurement=4 (approximate) for the visible coastline.

===Coast Pilot examples===
(97) The intracoastal passages of New Jersey, Delaware and Maryland usually are closed by ice during ordinary winters; the Virginia passages are closed only during severe winters and then only for short periods. Local vessels use all the inlets and adjacent channels from Sandy Hook to Cape Charles all winter, even when through navigation is blocked.

(98) In Delaware River, ice is present in sufficient amounts even in ordinary winters to be of some concern. The Chesapeake and Delaware Canal is kept open as long as possible but may be closed at times. In severe winters, navigation has been interrupted above Chester but tugs and large vessels keep the channels open to Philadelphia. Above Philadelphia, the river may be closed for extended periods in January and February, and navigation is practically suspended during severe winters.

(99) Ice seldom interferes with navigation of full-powered vessels in Hampton Roads even in severe winters. Large vessels can always pass up and down Chesapeake Bay, but ice jams are of frequent occurrence off Baltimore Harbor. The harbor itself sometimes freezes over and navigation may be blocked for small, low-powered vessels for limited periods.

(100) Conditions in other Chesapeake Bay tributaries are somewhat similar to those in the same latitudes along the coast. Ice is not much of a problem in the southerly tributaries. The upper part of Potomac River is closed during severe winters, and Patuxent River is closed nearly to the mouth. Severn River, strangely enough, is said to remain open except for short periods in severe winters. Susquehanna River, at the head of the bay, usually is completely closed for about 3 months. Ice conditions in the Eastern Shore tributaries correspond roughly to those across the bay.

(101) During some winter months or when threatened by icing conditions, lighted buoys may be removed from station or replaced by unlighted buoys; unlighted buoys, daybeacons and lights on marine sites also may be removed. (See LIGHT LIST.)

(102) For icing hazards to vessels see Superstructure icing, following.

(135) Ice may be encountered on Maurice River from the latter part of December through the early part of March.

(87) '''Ice sufficient to interfere with the navigation of small craft may be expected at any time between December and April and is worst during January and February.''' The canal is kept open as long as possible. During mild winters, local vessels use the canal throughout most of the season, but strangers should make inquiries before attempting passage. Wooden vessels passing through thin ice are liable to be cut through at the waterline. Vessels with low horsepower are cautioned against transiting the canal in heavy ice.

===Possible Data Elements Needed===
type of ice - ice barriers, impoundments, pack ice (Germany), thin ice, heavy/heavier ice, sufficient ice (US)

disability - ice pressure, passage disability (Germany), interruption

closure times - ordinary winters, severe winters (US)

closure duration - short periods, extended periods, entire winter (data range) (US)

seasonal notes on passage/navigation - ice seldom forms before January

applicability - local vessels, strangers, small, low-powered/low horsepower vessels, large vessels, full-powered vessels, Wooden vessels

===NOTES===
would S-101 feature name contain the ice area names included in the text (ex: New Jersey, Delaware, Maryland intracoastal passages, Virginia passages, channels from Sandy Hook to Cape Charles). If not, it might be a data element for S-126 Ice Area Name(s).

S-101 ICEARE - CATICE - is fast ice also "running ice" or "moving ice"?
S-101 ICEARE - periodic date range - textual descriptions have ranges with types of ice (ex. Thin ice has been known to form early in December between Chester and Philadelphia, but the heavier ice usually does not begin to run before January.)

==Currents and Flow==

**General Information
**Named Currents
**Seasonal Currents

===Current –non-gravitational===
====S-101====
From DCEG

Water turbulence (WATTUR)
The disturbance of water caused by the interaction of any combination of waves, currents, tidal streams, wind, shoal patches and obstructions. (IHO Dictionary –S-32
category of water turbulence (CATWAT)
1 : breakers
2 : eddies
3 : overfalls
4 : tide rips
5 : bombora
feature name
display name
language
name(OBJNAM) (NOBJNM)
scale minimum (SCAMIN)

S-101 Geo Feature:Current –Non-Gravitational (CURENT) 10.3

IHO Definition: CURRENT –NON-GRAVITATIONAL. Any current that is caused by other than tide producing forces. Also called non-tidal current.(IHO Dictionary –S-32).

======S-101 Attributes======
feature name
display name
language
name(OBJNAM) (NOBJNM)
fixed date range
date end (DATEND)
date start (DATSTA)
Orientation
orientation uncertainty
orientation value (ORIENT)
periodic date range
date end (PEREND)
date start (PERSTA)
Speed
speed maximum (CURVEL)
speed minimum
Status (STATUS)
scale minimum (SCAMIN)

=====Remarks=====
10.3.1 Current data (see S-4 –B-408)The term “current(s)” in this document is used to describe water movements which are generally constant in direction, and are not dependent on astronomical conditions (that is, are non-gravitational). A current is described by the direction towards which it is running. For tidal streams, see clauses10.2 and 10.5.

Currents occur as:

The flow of river water in rivers and estuaries;

Permanent flows in other restricted waters, for example İstanbul Boğazı (Bosporus);

Permanent or seasonal oceanic currents;
Temporary wind-induced currents.

Only surface currents should be encoded. It is particularly important to depict currents (both the main flows and permanent eddies) which could set a vessel towards dangers.

====Coast Pilot examples====
(95) Rotary currents and Gulf Stream currents could be discussed at considerable length, but the important currents are those in the inlets and the inside passages; the tidal currents have considerable velocity in all of the entrances, and their direction is affected by the force and direction of the wind. (See the Tidal Current Tables at tidesandcurrents.noaa.gov/curr_pred.html for detailed information.)

---

(96) The current velocity is about 2 knots in Cape May Inlet.

---

(19) Current velocities may reach 3 knots in the inlets and in the narrow channels that connect the inlets with the inside waters.

---

(40) The current velocity in Manasquan Inlet is about 1.8 knots in the inlet and 2.2 knots at the State Route 35 bridge.
---

(91) Cross currents may be experienced in the approach channel to Tuckerton Creek. A speed limit of 8 miles per hour is prescribed for the channel. (See 33 CFR 162.30, Chapter 2.)

---

(176) In Cape May Canal, the current velocity is 1.9 knots at the east end and 0.9 knot at the west end; passage of barge tows may be delayed because of tide and current conditions.
---

(51) The current velocity is 1.8 knots in Delaware Bay entrance. (See the Tidal Current Tables for daily predictions.) The tables also list current differences and other constants for about 55 other places in Delaware Bay and River

---

(99) The current velocity is 1.5 knots on the flood and 1.0 knot on the ebb. In 1980, it was reported that current velocities up to 3 knots on the flood and 4 knots on the ebb may be encountered in the river. Occasional periods of lower than normal low water levels were encountered.

---

(111) The current velocity off the entrance is about 0.7 knot.

---

(123) The channels have strong currents, and many tide rips form near Prissy Wicks Shoal. In unmarked Cape May Channel, the current velocity is 1.5 knots on the flood and 2.3 knots on the ebb. In the channel immediately northwestward of Overfalls Shoal, the velocity is 2 knots on the flood and 1.9 knots on the ebb.

---

(133) The current velocity is about 1 knot in the entrance and about 2.3 knots at Mauricetown; at Millville, the flood is very weak and the ebb velocity is 0.4 knot. Owing to dereliction of the dikes along the river, greater current velocities have been reported; extreme care is required in docking

---

(154) High water at Bridgeton is about 2 hours later than at the entrance. The current velocity is about 1.3 knots half a mile above the entrance and less than 0.5 knot at Bridgeton.

---

(171) The tides at Salem are about 35 minutes later than at Reedy Island. The current velocity is about 1.6 knots in the entrance. The maximum expected current in the land cut is 3 knots

---

(237) The current velocity is about 1.7 knots at Marcus Hook.

---

(256) The current velocity is 1.7 knots on the flood and 2.2 knots on the ebb off Eddystone, Mile 73N.

---

(264) The current velocity is about 2 knots a half-mile east of Crab Point.

---

(272) The current velocity is about 2 knots in the channel opposite the anchorage.

---

(344) In Schuylkill River, the current velocity is about 0.5 knot at the entrance.

---

(398) The current velocity is 1.3 knots on the flood and 1.6 knots on the ebb in the main channel west of Burlington Island. In the back channel east of the island, the velocity is 0.9 knot on the flood and 1.8 knots on the ebb.

---

(408) The current velocity in Whitehill Range off Fieldsboro is 1.4 knots on the ebb; the flood current is weak and of short duration.

---

(85) The current velocity is 2.6 knots on the flood and 2.1 knots on the ebb at the Reedy Point bridge and about 2 knots at the Chesapeake City bridge. The flood sets eastward and the ebb westward. (See the Tidal Current Tables for daily predictions for Chesapeake City.) Storms may increase these velocities to 3.0 knots or more; at such times, tows usually have difficulty in making headway against the current.

---

(20) The currents have considerable velocity in the inlets and in the narrow channels connecting the inlets with adjacent bays and sounds. Velocities of as much as 3 knots may be encountered at times in places where the currents are strongest.

---

(45) The current velocity is about 2 knots; caution is necessary, because the buoys sometimes tow under.

---

(51) The current velocity is 1.0 knot on the flood and 1.5 knots on the ebb in Chesapeake Bay Entrance. (See the Tidal Current Tables for daily predictions.)

---

(15) The currents in James River follow the general direction of the channel, except between Hog Island and Jamestown Island, 25 miles above the mouth, where they set across Goose Hill Flats. In the lower reaches, the velocity of flood is about equal to that of ebb. Near Richmond, the drainage flow predominates and the current seldom, if ever, sets upstream. These normal conditions are subject to change by wind and freshets.

(16) During severe winters some drift ice appears, and at times the river freezes over, but navigation to Richmond hardly ever is suspended because the ice is broken up by a tug.

(17) Freshets occur irregularly in the fall, winter and spring; their height at Richmond ranges from 6 to 32 feet, though the latter is exceptional. The maximum freshet heights usually occur between the middle of March and the middle of April; the freshets occurring at other times usually reach heights not greater than about 6 feet above the normal high water. The number of freshets that cause the water to rise above the level of the wharves along the main channel at Richmond averages about one per year; the water seldom rises above the level of the city wharf. The flood heights diminish rapidly below Richmond; the extreme is about 11 feet less at Dutch Gap, and the rise is not felt at Hopewell. The cutoffs have reduced the freshet height at Richmond about 1 foot.

---

(30) In Nansemond River, the current velocity is about 0.9 knot and follows the general direction of the channel

---

(135) The currents follow the general direction of the channel. The velocities throughout the river are usually weak, averaging less than 1 knot at the entrance to 1.4 knots at Tappahannock. Times of slack water and strength of current become later going upriver. These normal conditions are subject to change by winds and changes in drainage flow

---

(22) The current in Chesapeake Bay off the mouth of Potomac River can be hazardous to smaller vessels and pleasure boats at ebb tide, when wind and current are opposed and with northwest winds. These conditions are more pronounced off Smith Point. The currents in the Potomac River follow the general direction of the channel. The velocities vary throughout the river and are influenced by wind and freshets. There may be little or no flood current during freshets. (23) The current velocity is weak in the lower part of the river between the entrance and Piney Point, averaging less than 1.0 knot. (See Tidal Current Tables for predictions.)

---

(106) Strong tidal currents set across the main channel off Monie Bay; the current velocity in the entrance to the river is 0.6 knot on the flood and 0.9 knot on the ebb.
---
(130) The current velocity in Nanticoke River is 1.2 knots in the entrance. The water is fresh above Vienna. Ice forms on the river in winter, but ordinarily there is enough traffic to keep the channel open. Spring freshets do not interfere with navigation.

---

(277) The current velocity is less than 1.0 knot. The river is usually closed to navigation by ice for extended periods during ordinary winters; in mild winters the channel is kept clear most of the time by powerboats. The river water is fresh above Chestertown.

---

(39) Prolonged winds of constant direction may cause substantial variation in the tide. Currents in the harbor are 0.8 knot on the flood and ebb.

====Germany Example====
at S to W winds expiring flow

at N to O winds incoming flow

Flow rates up to 2.5 nm/h
Maximum in the Friedrichsorter Enge

the lighthouse Kiel at strong NO and SO-W-winds Liche flow to 2 sm/h

====Possible Data Elements Needed====
Velocity
velocity value- float
Velocity units - knot
Velocity qualifier - (equal to), less than, greater than, about
Velocity direction - flood, ebb, flood and ebb, none
Applicability
Feature - some ENC feature names, some locations described, a waterMovement Area (polygon)
Relation To Feature - above, in, near, at, off, east of, throughout
Tidal Current strength - strong
Tidal Current Direction of set - follow the general direction of the channel, The flood sets eastward and the ebb westward
Warning Note
Water Level

====NOTES====

===Tidal Streams - flood/ebb===
====S-101====
From DCEG
Geo Feature: TidalStream –Flood/Ebb (TS_FEB)

IHO Definition: TIDAL STREAMS. The alternating horizontal movement of water associated with the rise and fall of the tide caused by tide-producing forces. Also called tidal current. (IHO Dictionary –S-32). Approximate tidal stream rates may be given as discrete rate values for flood and ebb flow during springs. (S-57 Edition 3.1, Appendix A –Chapter 1, Page 1.173, November 2000).

======S-101 Attributes======
=====Remarks=====
====Coast Pilot examples====
====Possible Data Elements Needed====
====NOTES====

===Sea Level and Tides===
*Sea Level
*Tides

==Sea and Swell==
*Sea Conditions
*Swell Conditions
*Tropical Disturbances
*Abnormal Waves

==Sea Water Characteristics==
*Salinity
*Density
*Sea Surface Temperature

==Maritime Topography==
''(these terms origniated from scanning the publications and discussing among the group which were the most SIGNIFICANT features a mariner needed for navigation)''

*General Remarks
**Chart reference
**general description of the area (topological as well as submarine)
*Seabed and Features
**Deeps
**Ridges and Plateaux
**Shoals and Banks
*Submarine Springs
*Volcanic Activity
*Seismic Activity

==Climate and Weather==
*General Information
*General Conditions
**Climate
**Visibility
**Cyclones
*Pressure
**Average Distribution
**Variability
**Diurnal Variation
**Abnormal Falls
*Anticyclones
**Sub-tropical high pressure belt
*Depressions
**General Information
**Cyclones, tropical storms, tropical depressions
**Classification
**Occurrence
**Average occurrence of tropical storms and cyclones in the SW indian ocean (this seems too specific for a heading)
**Movement
*Fronts
**Cold Fronts
**The intertropical convergence zone
*Winds
**General information
**South-east trade winds
**The North-west monsoon
**Light or moderate variable winds
**The Westerlies
**Coastal Areas
**Land and sea breeze
*Gales
**General Information
**Winds north of 30°S
**Winds south of 30°S
**Squalls
**Waterspouts
*Cloud
**North of 30°S
**The sub-tropical belt of high pressure
**South of 30°S
*Precipitation
**General Information
**The North-west monsoon and ITCZ
**Madagascar
**La Reunion, tec
**Cycolones
**The sub-tropical belt of high pressure
*Fog and visibility
**Sea fog
**Radiation fog
*Air Temperature
**Open sea
**Coastal areas
*Humidity
**General Information
**Open sea N of 30°S
**South of 30°S

==Climate Information==
*Climate Station Information

==QUESTIONS/COMMENTS/MISSING ITEMS==
* Where are the Physical Descriptions of features, approaches, ports, anchorages, etc?
* Are references to external documents (i.e. Mariner's Handbook) to be kept or actual data from the reference or attach pdf?
* S-26 ?(undersea feature names) should be incorporated into this

S-126

2020-01-07T16:50:15Z

Briana: /* Possible Data Elements Needed */

'''Physical Environment'''
 ''a place to discuss and follow the work''

Knowledgeable WG members: briana sullivan (UNH), Jens Schröder-Fürstenberg (Germany), Tom Loeper (USA), Yves Le Franc (SHOM)

OLD ORIGINAL - Sample Test Data [[FILE:Physical_Environment_Test_Data_Sample.docx]] (NOTE: we are now using real samples from US Coast Pilot and US Sailing Directions)

[http://www.iho.int/mtg_docs/com_wg/NIPWG/NIPWG2/NIPWG%202-22.1%20%20Annex%20A%20Physical_Environment_Test_Data_Sample.pdf NEW listing of terms with data source (Annex A)]

[[FILE: Coast_Chart_Term_Frequency_NIPWG_Version.xlsx]] - a new list of terms compiled from all possible sources related to the Physical Environment that contains statistics on the frequency of word use within the 9 volumes of the US Coast Pilot. It will be used as a guide to focus on terms to research and build use case scenarios so we know what is of value to model and what doesn't need representation.

==Magnetic Variations and Local Anomalies==
*Magnetic Variations
*Magnetic Anomalies

===S-101===
From DCEG
Geo Feature Magnetic Data

====Magnetic Variation - '''MAGVAR''' (4.1)====

S-101 Geo Feature

The angle between the magnetic and geographic meridians at any place, expressed in degrees east or west to indicate the direction of magnetic north from true north. Also called magnetic declination. (IHO Dictionary –S-32).

(until a world magnetic model is universally available for inclusion in ECDIS mag var is most important magnetic data for the mariner. Updates should be supplied every five years to coincide with changes of epoch).

=====S-101 Attributes=====
'''RYRMGV''' - reference year for magnetic variation. (YYYY)
'''VALACM''' - value of annual change in magnetic variation. (+/- minutes: easterly/westerly)
'''SCAMIN''' - scale minimum

====Local Magnetic Anomaly - '''LOCMAG''' (4.2)====

S-101 Geo Feature

An anomaly of the magnetic field of the Earth, extending over a relatively small area, due to local magnetic influences. Also called local attraction or magnetic anomaly. (IHO Dictionary –S-32).

If it is required to encode an abnormality in magnetic variation for a localised area, it must be done using the feature Local Magnetic Anomaly. If the area cannot be defined, the feature should be represented as a point.

=====S-101 Attributes=====
Feature Name
display name
language
name '''OBJNAM/NOBJNM'''
reported date '''SORDAT'''
value of local magnetic anomaly
magnetic anomaly value maximum '''VALLMA'''
magnetic anomaly value minimum
scale minimum '''SCAMIN'''

====Remarks====
Where the mandatory complex attribute value of local magnetic anomaly contains a value in the sub-attribute magnetic anomaly value maximum only, the deviation is assumed to be positive and negative by that amount. Where the positive and negative values for the local magnetic anomaly differ, the positive value must be populated in anomaly value maximum, and the negative value in the sub-attribute magnetic anomaly value minimum. The plus/minus character must not be encoded.

Abnormal magnetic variation should not be encoded unless it varies by more than about 3° from the normal magnetic variation (see clause 4.1) for the area.

===Coast Pilot examples===
(120) Differences of as much as 5° from the normal variation have been observed near the mouth of Smyrna River.

(166) Differences of as much as 2° to 5° from normal variation have been observed along the channel from Artificial Island to Marcus Hook.

(232) Differences of 2° to 5° from normal variation have been observed astride the Delaware River Channel from Oldmans Point to the mouth of Oldmans Creek.

(79) Differences of as much as 6° from the normal variation have been observed in Elk River Channel from Courthouse Point to Old Town Point.

(30) Differences of as much as 6° from the normal variation have been observed 3 to 17 miles offshore from Cape Henry to Currituck Beach Light.

(130) Differences of as much as 5° from the normal variation have been observed in the channel from Pooles Island to Howell Point (chart 12274).

(180) Differences of 3° to 8° from normal variation have been observed in Elk River channel from Grove Point to Courthouse Point.

===Possible Data Elements Needed===
Observation location description - would it be HELPFUL to have the cultural points within the area maintained?

(perhaps it is more understandable for someone to keep in their mind map of the area the familiar names delineating the locations vs only an outline on the chart?)

===NOTES===
For the US... the Magnetic Variation area is the bounds of a given chart...yet the Coast Pilot clearly has variations that are within the magnetic variation bounds of the chart. (Yet there are none encoded in the ENC).

==Ice Conditions==
*Drift Ice
*Icebergs

===S-101===
From DCEG

====Ice Area '''ICEARE''' (5.13)====

S-101 Geo Feature (Surface)

An area of ice over land or water. (S-57 Edition 3.1, Appendix A –Chapter 1, Page 1.84, November 2000).

=====S-101 Attributes=====
category of ice (CATICE)
1 : fast ice
5 : glacier
8 : polar ice
elevation (ELEVAT)
feature name
display name
language
name(OBJNAM)/(NOBJNM)
height (HEIGHT)
periodic date range
date end(PEREND)
date start(PERSTA)
reported date(SORDAT)
status(STATUS)
1 : permanent
5 : periodic/intermittent
18 : existence doubtful
vertical length(VERLEN)
visually conspicuous (CONVIS)
1 : visually conspicuous
2 : not visually conspicuous
3 : prominent
scale minimum (SCAMIN)

====Remarks====
Ice Area features that are located in the sea must be covered by an Unsurveyed Area feature, if the depth of water beneath them is unknown, or covered by a Depth Area feature, if the depth is known.

As ice fronts move, a date when the limit was surveyed should be included, if possible, using the attribute reported date.

Glaciers(see S-4 –B-353.8) If it is required to encode the portion of a glacier that is on land, it must be done using an Ice Area feature, with attribute category of ice= 5 (glacier) covered by a Land Area feature (that is, the glacier does not form a hole in the land area).

If the seaward edge of an encoded glacier is coincident with the coastline, this edge should be encoded using a Coastline feature, with attribute category of coastline=6 (glacier (seaward end)), and the coastline’s spatial type should have the attribute quality of horizontal measurement=4 (approximate) for the visible coastline.

===Coast Pilot examples===
(97) The intracoastal passages of New Jersey, Delaware and Maryland usually are closed by ice during ordinary winters; the Virginia passages are closed only during severe winters and then only for short periods. Local vessels use all the inlets and adjacent channels from Sandy Hook to Cape Charles all winter, even when through navigation is blocked.

(98) In Delaware River, ice is present in sufficient amounts even in ordinary winters to be of some concern. The Chesapeake and Delaware Canal is kept open as long as possible but may be closed at times. In severe winters, navigation has been interrupted above Chester but tugs and large vessels keep the channels open to Philadelphia. Above Philadelphia, the river may be closed for extended periods in January and February, and navigation is practically suspended during severe winters.

(99) Ice seldom interferes with navigation of full-powered vessels in Hampton Roads even in severe winters. Large vessels can always pass up and down Chesapeake Bay, but ice jams are of frequent occurrence off Baltimore Harbor. The harbor itself sometimes freezes over and navigation may be blocked for small, low-powered vessels for limited periods.

(100) Conditions in other Chesapeake Bay tributaries are somewhat similar to those in the same latitudes along the coast. Ice is not much of a problem in the southerly tributaries. The upper part of Potomac River is closed during severe winters, and Patuxent River is closed nearly to the mouth. Severn River, strangely enough, is said to remain open except for short periods in severe winters. Susquehanna River, at the head of the bay, usually is completely closed for about 3 months. Ice conditions in the Eastern Shore tributaries correspond roughly to those across the bay.

(101) During some winter months or when threatened by icing conditions, lighted buoys may be removed from station or replaced by unlighted buoys; unlighted buoys, daybeacons and lights on marine sites also may be removed. (See LIGHT LIST.)

(102) For icing hazards to vessels see Superstructure icing, following.

(135) Ice may be encountered on Maurice River from the latter part of December through the early part of March.

(87) '''Ice sufficient to interfere with the navigation of small craft may be expected at any time between December and April and is worst during January and February.''' The canal is kept open as long as possible. During mild winters, local vessels use the canal throughout most of the season, but strangers should make inquiries before attempting passage. Wooden vessels passing through thin ice are liable to be cut through at the waterline. Vessels with low horsepower are cautioned against transiting the canal in heavy ice.

===Possible Data Elements Needed===
type of ice - ice barriers, impoundments, pack ice (Germany), thin ice, heavy/heavier ice, sufficient ice (US)

disability - ice pressure, passage disability (Germany), interruption

closure times - ordinary winters, severe winters (US)

closure duration - short periods, extended periods, entire winter (data range) (US)

seasonal notes on passage/navigation - ice seldom forms before January

applicability - local vessels, strangers, small, low-powered/low horsepower vessels, large vessels, full-powered vessels, Wooden vessels

===NOTES===
would S-101 feature name contain the ice area names included in the text (ex: New Jersey, Delaware, Maryland intracoastal passages, Virginia passages, channels from Sandy Hook to Cape Charles). If not, it might be a data element for S-126 Ice Area Name(s).

S-101 ICEARE - CATICE - is fast ice also "running ice" or "moving ice"?
S-101 ICEARE - periodic date range - textual descriptions have ranges with types of ice (ex. Thin ice has been known to form early in December between Chester and Philadelphia, but the heavier ice usually does not begin to run before January.)

==Currents and Flow==

**General Information
**Named Currents
**Seasonal Currents

===Current –non-gravitational===
====S-101====
From DCEG
S-101 Geo Feature:Current –Non-Gravitational (CURENT) 10.3

IHO Definition: CURRENT –NON-GRAVITATIONAL. Any current that is caused by other than tide producing forces. Also called non-tidal current.(IHO Dictionary –S-32).

======S-101 Attributes======
feature name
display name
language
name(OBJNAM) (NOBJNM)
fixed date range
date end (DATEND)
date start (DATSTA)
Orientation
orientation uncertainty
orientation value (ORIENT)
periodic date range
date end (PEREND)
date start (PERSTA)
Speed
speed maximum (CURVEL)
speed minimum
Status (STATUS)
scale minimum (SCAMIN)

=====Remarks=====
10.3.1 Current data (see S-4 –B-408)The term “current(s)” in this document is used to describe water movements which are generally constant in direction, and are not dependent on astronomical conditions (that is, are non-gravitational). A current is described by the direction towards which it is running. For tidal streams, see clauses10.2 and 10.5.

Currents occur as:

The flow of river water in rivers and estuaries;

Permanent flows in other restricted waters, for example İstanbul Boğazı (Bosporus);

Permanent or seasonal oceanic currents;
Temporary wind-induced currents.

Only surface currents should be encoded. It is particularly important to depict currents (both the main flows and permanent eddies) which could set a vessel towards dangers.

====Coast Pilot examples====
(95) Rotary currents and Gulf Stream currents could be discussed at considerable length, but the important currents are those in the inlets and the inside passages; the tidal currents have considerable velocity in all of the entrances, and their direction is affected by the force and direction of the wind. (See the Tidal Current Tables at tidesandcurrents.noaa.gov/curr_pred.html for detailed information.)

---

(96) The current velocity is about 2 knots in Cape May Inlet.

---

(19) Current velocities may reach 3 knots in the inlets and in the narrow channels that connect the inlets with the inside waters.

---

(40) The current velocity in Manasquan Inlet is about 1.8 knots in the inlet and 2.2 knots at the State Route 35 bridge.
---

(91) Cross currents may be experienced in the approach channel to Tuckerton Creek. A speed limit of 8 miles per hour is prescribed for the channel. (See 33 CFR 162.30, Chapter 2.)

---

(176) In Cape May Canal, the current velocity is 1.9 knots at the east end and 0.9 knot at the west end; passage of barge tows may be delayed because of tide and current conditions.
---

(51) The current velocity is 1.8 knots in Delaware Bay entrance. (See the Tidal Current Tables for daily predictions.) The tables also list current differences and other constants for about 55 other places in Delaware Bay and River

---

(99) The current velocity is 1.5 knots on the flood and 1.0 knot on the ebb. In 1980, it was reported that current velocities up to 3 knots on the flood and 4 knots on the ebb may be encountered in the river. Occasional periods of lower than normal low water levels were encountered.

---

(111) The current velocity off the entrance is about 0.7 knot.

---

(123) The channels have strong currents, and many tide rips form near Prissy Wicks Shoal. In unmarked Cape May Channel, the current velocity is 1.5 knots on the flood and 2.3 knots on the ebb. In the channel immediately northwestward of Overfalls Shoal, the velocity is 2 knots on the flood and 1.9 knots on the ebb.

---

(133) The current velocity is about 1 knot in the entrance and about 2.3 knots at Mauricetown; at Millville, the flood is very weak and the ebb velocity is 0.4 knot. Owing to dereliction of the dikes along the river, greater current velocities have been reported; extreme care is required in docking

---

(154) High water at Bridgeton is about 2 hours later than at the entrance. The current velocity is about 1.3 knots half a mile above the entrance and less than 0.5 knot at Bridgeton.

---

(171) The tides at Salem are about 35 minutes later than at Reedy Island. The current velocity is about 1.6 knots in the entrance. The maximum expected current in the land cut is 3 knots

---

(237) The current velocity is about 1.7 knots at Marcus Hook.

---

(256) The current velocity is 1.7 knots on the flood and 2.2 knots on the ebb off Eddystone, Mile 73N.

---

(264) The current velocity is about 2 knots a half-mile east of Crab Point.

---

(272) The current velocity is about 2 knots in the channel opposite the anchorage.

---

(344) In Schuylkill River, the current velocity is about 0.5 knot at the entrance.

---

(398) The current velocity is 1.3 knots on the flood and 1.6 knots on the ebb in the main channel west of Burlington Island. In the back channel east of the island, the velocity is 0.9 knot on the flood and 1.8 knots on the ebb.

---

(408) The current velocity in Whitehill Range off Fieldsboro is 1.4 knots on the ebb; the flood current is weak and of short duration.

---

(85) The current velocity is 2.6 knots on the flood and 2.1 knots on the ebb at the Reedy Point bridge and about 2 knots at the Chesapeake City bridge. The flood sets eastward and the ebb westward. (See the Tidal Current Tables for daily predictions for Chesapeake City.) Storms may increase these velocities to 3.0 knots or more; at such times, tows usually have difficulty in making headway against the current.

---

(20) The currents have considerable velocity in the inlets and in the narrow channels connecting the inlets with adjacent bays and sounds. Velocities of as much as 3 knots may be encountered at times in places where the currents are strongest.

---

(45) The current velocity is about 2 knots; caution is necessary, because the buoys sometimes tow under.

---

(51) The current velocity is 1.0 knot on the flood and 1.5 knots on the ebb in Chesapeake Bay Entrance. (See the Tidal Current Tables for daily predictions.)

---

(15) The currents in James River follow the general direction of the channel, except between Hog Island and Jamestown Island, 25 miles above the mouth, where they set across Goose Hill Flats. In the lower reaches, the velocity of flood is about equal to that of ebb. Near Richmond, the drainage flow predominates and the current seldom, if ever, sets upstream. These normal conditions are subject to change by wind and freshets.

(16) During severe winters some drift ice appears, and at times the river freezes over, but navigation to Richmond hardly ever is suspended because the ice is broken up by a tug.

(17) Freshets occur irregularly in the fall, winter and spring; their height at Richmond ranges from 6 to 32 feet, though the latter is exceptional. The maximum freshet heights usually occur between the middle of March and the middle of April; the freshets occurring at other times usually reach heights not greater than about 6 feet above the normal high water. The number of freshets that cause the water to rise above the level of the wharves along the main channel at Richmond averages about one per year; the water seldom rises above the level of the city wharf. The flood heights diminish rapidly below Richmond; the extreme is about 11 feet less at Dutch Gap, and the rise is not felt at Hopewell. The cutoffs have reduced the freshet height at Richmond about 1 foot.

---

(30) In Nansemond River, the current velocity is about 0.9 knot and follows the general direction of the channel

---

(135) The currents follow the general direction of the channel. The velocities throughout the river are usually weak, averaging less than 1 knot at the entrance to 1.4 knots at Tappahannock. Times of slack water and strength of current become later going upriver. These normal conditions are subject to change by winds and changes in drainage flow

---

(22) The current in Chesapeake Bay off the mouth of Potomac River can be hazardous to smaller vessels and pleasure boats at ebb tide, when wind and current are opposed and with northwest winds. These conditions are more pronounced off Smith Point. The currents in the Potomac River follow the general direction of the channel. The velocities vary throughout the river and are influenced by wind and freshets. There may be little or no flood current during freshets. (23) The current velocity is weak in the lower part of the river between the entrance and Piney Point, averaging less than 1.0 knot. (See Tidal Current Tables for predictions.)

---

(106) Strong tidal currents set across the main channel off Monie Bay; the current velocity in the entrance to the river is 0.6 knot on the flood and 0.9 knot on the ebb.
---
(130) The current velocity in Nanticoke River is 1.2 knots in the entrance. The water is fresh above Vienna. Ice forms on the river in winter, but ordinarily there is enough traffic to keep the channel open. Spring freshets do not interfere with navigation.

---

(277) The current velocity is less than 1.0 knot. The river is usually closed to navigation by ice for extended periods during ordinary winters; in mild winters the channel is kept clear most of the time by powerboats. The river water is fresh above Chestertown.

---

(39) Prolonged winds of constant direction may cause substantial variation in the tide. Currents in the harbor are 0.8 knot on the flood and ebb.

====Germany Example====
at S to W winds expiring flow

at N to O winds incoming flow

Flow rates up to 2.5 nm/h
Maximum in the Friedrichsorter Enge

the lighthouse Kiel at strong NO and SO-W-winds Liche flow to 2 sm/h

====Possible Data Elements Needed====
Velocity
velocity value- float
Velocity units - knot
Velocity qualifier - (equal to), less than, greater than, about
Velocity direction - flood, ebb, flood and ebb, none
Applicability
Feature - some ENC feature names, some locations described, a waterMovement Area (polygon)
Relation To Feature - above, in, near, at, off, east of, throughout
Tidal Current strength - strong
Tidal Current Direction of set - follow the general direction of the channel, The flood sets eastward and the ebb westward
Warning Note
Water Level

====NOTES====

===Tidal Streams - flood/ebb===
====S-101====
From DCEG
Geo Feature: TidalStream –Flood/Ebb (TS_FEB)

IHO Definition: TIDAL STREAMS. The alternating horizontal movement of water associated with the rise and fall of the tide caused by tide-producing forces. Also called tidal current. (IHO Dictionary –S-32). Approximate tidal stream rates may be given as discrete rate values for flood and ebb flow during springs. (S-57 Edition 3.1, Appendix A –Chapter 1, Page 1.173, November 2000).

======S-101 Attributes======
=====Remarks=====
====Coast Pilot examples====
====Possible Data Elements Needed====
====NOTES====

===Sea Level and Tides===
*Sea Level
*Tides

==Sea and Swell==
*Sea Conditions
*Swell Conditions
*Tropical Disturbances
*Abnormal Waves

==Sea Water Characteristics==
*Salinity
*Density
*Sea Surface Temperature

==Maritime Topography==
''(these terms origniated from scanning the publications and discussing among the group which were the most SIGNIFICANT features a mariner needed for navigation)''

*General Remarks
**Chart reference
**general description of the area (topological as well as submarine)
*Seabed and Features
**Deeps
**Ridges and Plateaux
**Shoals and Banks
*Submarine Springs
*Volcanic Activity
*Seismic Activity

==Climate and Weather==
*General Information
*General Conditions
**Climate
**Visibility
**Cyclones
*Pressure
**Average Distribution
**Variability
**Diurnal Variation
**Abnormal Falls
*Anticyclones
**Sub-tropical high pressure belt
*Depressions
**General Information
**Cyclones, tropical storms, tropical depressions
**Classification
**Occurrence
**Average occurrence of tropical storms and cyclones in the SW indian ocean (this seems too specific for a heading)
**Movement
*Fronts
**Cold Fronts
**The intertropical convergence zone
*Winds
**General information
**South-east trade winds
**The North-west monsoon
**Light or moderate variable winds
**The Westerlies
**Coastal Areas
**Land and sea breeze
*Gales
**General Information
**Winds north of 30°S
**Winds south of 30°S
**Squalls
**Waterspouts
*Cloud
**North of 30°S
**The sub-tropical belt of high pressure
**South of 30°S
*Precipitation
**General Information
**The North-west monsoon and ITCZ
**Madagascar
**La Reunion, tec
**Cycolones
**The sub-tropical belt of high pressure
*Fog and visibility
**Sea fog
**Radiation fog
*Air Temperature
**Open sea
**Coastal areas
*Humidity
**General Information
**Open sea N of 30°S
**South of 30°S

==Climate Information==
*Climate Station Information

==QUESTIONS/COMMENTS/MISSING ITEMS==
* Where are the Physical Descriptions of features, approaches, ports, anchorages, etc?
* Are references to external documents (i.e. Mariner's Handbook) to be kept or actual data from the reference or attach pdf?
* S-26 ?(undersea feature names) should be incorporated into this

S-126

2020-01-07T16:48:16Z

Briana: /* Possible Data Elements Needed */

'''Physical Environment'''
 ''a place to discuss and follow the work''

Knowledgeable WG members: briana sullivan (UNH), Jens Schröder-Fürstenberg (Germany), Tom Loeper (USA), Yves Le Franc (SHOM)

OLD ORIGINAL - Sample Test Data [[FILE:Physical_Environment_Test_Data_Sample.docx]] (NOTE: we are now using real samples from US Coast Pilot and US Sailing Directions)

[http://www.iho.int/mtg_docs/com_wg/NIPWG/NIPWG2/NIPWG%202-22.1%20%20Annex%20A%20Physical_Environment_Test_Data_Sample.pdf NEW listing of terms with data source (Annex A)]

[[FILE: Coast_Chart_Term_Frequency_NIPWG_Version.xlsx]] - a new list of terms compiled from all possible sources related to the Physical Environment that contains statistics on the frequency of word use within the 9 volumes of the US Coast Pilot. It will be used as a guide to focus on terms to research and build use case scenarios so we know what is of value to model and what doesn't need representation.

==Magnetic Variations and Local Anomalies==
*Magnetic Variations
*Magnetic Anomalies

===S-101===
From DCEG
Geo Feature Magnetic Data

====Magnetic Variation - '''MAGVAR''' (4.1)====

S-101 Geo Feature

The angle between the magnetic and geographic meridians at any place, expressed in degrees east or west to indicate the direction of magnetic north from true north. Also called magnetic declination. (IHO Dictionary –S-32).

(until a world magnetic model is universally available for inclusion in ECDIS mag var is most important magnetic data for the mariner. Updates should be supplied every five years to coincide with changes of epoch).

=====S-101 Attributes=====
'''RYRMGV''' - reference year for magnetic variation. (YYYY)
'''VALACM''' - value of annual change in magnetic variation. (+/- minutes: easterly/westerly)
'''SCAMIN''' - scale minimum

====Local Magnetic Anomaly - '''LOCMAG''' (4.2)====

S-101 Geo Feature

An anomaly of the magnetic field of the Earth, extending over a relatively small area, due to local magnetic influences. Also called local attraction or magnetic anomaly. (IHO Dictionary –S-32).

If it is required to encode an abnormality in magnetic variation for a localised area, it must be done using the feature Local Magnetic Anomaly. If the area cannot be defined, the feature should be represented as a point.

=====S-101 Attributes=====
Feature Name
display name
language
name '''OBJNAM/NOBJNM'''
reported date '''SORDAT'''
value of local magnetic anomaly
magnetic anomaly value maximum '''VALLMA'''
magnetic anomaly value minimum
scale minimum '''SCAMIN'''

====Remarks====
Where the mandatory complex attribute value of local magnetic anomaly contains a value in the sub-attribute magnetic anomaly value maximum only, the deviation is assumed to be positive and negative by that amount. Where the positive and negative values for the local magnetic anomaly differ, the positive value must be populated in anomaly value maximum, and the negative value in the sub-attribute magnetic anomaly value minimum. The plus/minus character must not be encoded.

Abnormal magnetic variation should not be encoded unless it varies by more than about 3° from the normal magnetic variation (see clause 4.1) for the area.

===Coast Pilot examples===
(120) Differences of as much as 5° from the normal variation have been observed near the mouth of Smyrna River.

(166) Differences of as much as 2° to 5° from normal variation have been observed along the channel from Artificial Island to Marcus Hook.

(232) Differences of 2° to 5° from normal variation have been observed astride the Delaware River Channel from Oldmans Point to the mouth of Oldmans Creek.

(79) Differences of as much as 6° from the normal variation have been observed in Elk River Channel from Courthouse Point to Old Town Point.

(30) Differences of as much as 6° from the normal variation have been observed 3 to 17 miles offshore from Cape Henry to Currituck Beach Light.

(130) Differences of as much as 5° from the normal variation have been observed in the channel from Pooles Island to Howell Point (chart 12274).

(180) Differences of 3° to 8° from normal variation have been observed in Elk River channel from Grove Point to Courthouse Point.

===Possible Data Elements Needed===
Observation location description - would it be HELPFUL to have the cultural points within the area maintained?

(perhaps it is more understandable for someone to keep in their mind map of the area the familiar names delineating the locations vs only an outline on the chart?)

===NOTES===
For the US... the Magnetic Variation area is the bounds of a given chart...yet the Coast Pilot clearly has variations that are within the magnetic variation bounds of the chart. (Yet there are none encoded in the ENC).

==Ice Conditions==
*Drift Ice
*Icebergs

===S-101===
From DCEG

====Ice Area '''ICEARE''' (5.13)====

S-101 Geo Feature (Surface)

An area of ice over land or water. (S-57 Edition 3.1, Appendix A –Chapter 1, Page 1.84, November 2000).

=====S-101 Attributes=====
category of ice (CATICE)
1 : fast ice
5 : glacier
8 : polar ice
elevation (ELEVAT)
feature name
display name
language
name(OBJNAM)/(NOBJNM)
height (HEIGHT)
periodic date range
date end(PEREND)
date start(PERSTA)
reported date(SORDAT)
status(STATUS)
1 : permanent
5 : periodic/intermittent
18 : existence doubtful
vertical length(VERLEN)
visually conspicuous (CONVIS)
1 : visually conspicuous
2 : not visually conspicuous
3 : prominent
scale minimum (SCAMIN)

====Remarks====
Ice Area features that are located in the sea must be covered by an Unsurveyed Area feature, if the depth of water beneath them is unknown, or covered by a Depth Area feature, if the depth is known.

As ice fronts move, a date when the limit was surveyed should be included, if possible, using the attribute reported date.

Glaciers(see S-4 –B-353.8) If it is required to encode the portion of a glacier that is on land, it must be done using an Ice Area feature, with attribute category of ice= 5 (glacier) covered by a Land Area feature (that is, the glacier does not form a hole in the land area).

If the seaward edge of an encoded glacier is coincident with the coastline, this edge should be encoded using a Coastline feature, with attribute category of coastline=6 (glacier (seaward end)), and the coastline’s spatial type should have the attribute quality of horizontal measurement=4 (approximate) for the visible coastline.

===Coast Pilot examples===
(97) The intracoastal passages of New Jersey, Delaware and Maryland usually are closed by ice during ordinary winters; the Virginia passages are closed only during severe winters and then only for short periods. Local vessels use all the inlets and adjacent channels from Sandy Hook to Cape Charles all winter, even when through navigation is blocked.

(98) In Delaware River, ice is present in sufficient amounts even in ordinary winters to be of some concern. The Chesapeake and Delaware Canal is kept open as long as possible but may be closed at times. In severe winters, navigation has been interrupted above Chester but tugs and large vessels keep the channels open to Philadelphia. Above Philadelphia, the river may be closed for extended periods in January and February, and navigation is practically suspended during severe winters.

(99) Ice seldom interferes with navigation of full-powered vessels in Hampton Roads even in severe winters. Large vessels can always pass up and down Chesapeake Bay, but ice jams are of frequent occurrence off Baltimore Harbor. The harbor itself sometimes freezes over and navigation may be blocked for small, low-powered vessels for limited periods.

(100) Conditions in other Chesapeake Bay tributaries are somewhat similar to those in the same latitudes along the coast. Ice is not much of a problem in the southerly tributaries. The upper part of Potomac River is closed during severe winters, and Patuxent River is closed nearly to the mouth. Severn River, strangely enough, is said to remain open except for short periods in severe winters. Susquehanna River, at the head of the bay, usually is completely closed for about 3 months. Ice conditions in the Eastern Shore tributaries correspond roughly to those across the bay.

(101) During some winter months or when threatened by icing conditions, lighted buoys may be removed from station or replaced by unlighted buoys; unlighted buoys, daybeacons and lights on marine sites also may be removed. (See LIGHT LIST.)

(102) For icing hazards to vessels see Superstructure icing, following.

(135) Ice may be encountered on Maurice River from the latter part of December through the early part of March.

(87) '''Ice sufficient to interfere with the navigation of small craft may be expected at any time between December and April and is worst during January and February.''' The canal is kept open as long as possible. During mild winters, local vessels use the canal throughout most of the season, but strangers should make inquiries before attempting passage. Wooden vessels passing through thin ice are liable to be cut through at the waterline. Vessels with low horsepower are cautioned against transiting the canal in heavy ice.

===Possible Data Elements Needed===
type of ice - ice barriers, impoundments, pack ice (Germany), thin ice, heavy/heavier ice, sufficient ice (US)

disability - ice pressure, passage disability (Germany), interruption

closure times - ordinary winters, severe winters (US)

closure duration - short periods, extended periods, entire winter (data range) (US)

seasonal notes on passage/navigation - ice seldom forms before January

applicability - local vessels, strangers, small, low-powered/low horsepower vessels, large vessels, full-powered vessels, Wooden vessels

===NOTES===
would S-101 feature name contain the ice area names included in the text (ex: New Jersey, Delaware, Maryland intracoastal passages, Virginia passages, channels from Sandy Hook to Cape Charles). If not, it might be a data element for S-126 Ice Area Name(s).

S-101 ICEARE - CATICE - is fast ice also "running ice" or "moving ice"?
S-101 ICEARE - periodic date range - textual descriptions have ranges with types of ice (ex. Thin ice has been known to form early in December between Chester and Philadelphia, but the heavier ice usually does not begin to run before January.)

==Currents and Flow==

**General Information
**Named Currents
**Seasonal Currents

===Current –non-gravitational===
====S-101====
From DCEG
S-101 Geo Feature:Current –Non-Gravitational (CURENT) 10.3

IHO Definition: CURRENT –NON-GRAVITATIONAL. Any current that is caused by other than tide producing forces. Also called non-tidal current.(IHO Dictionary –S-32).

======S-101 Attributes======
feature name
display name
language
name(OBJNAM) (NOBJNM)
fixed date range
date end (DATEND)
date start (DATSTA)
Orientation
orientation uncertainty
orientation value (ORIENT)
periodic date range
date end (PEREND)
date start (PERSTA)
Speed
speed maximum (CURVEL)
speed minimum
Status (STATUS)
scale minimum (SCAMIN)

=====Remarks=====
10.3.1 Current data (see S-4 –B-408)The term “current(s)” in this document is used to describe water movements which are generally constant in direction, and are not dependent on astronomical conditions (that is, are non-gravitational). A current is described by the direction towards which it is running. For tidal streams, see clauses10.2 and 10.5.

Currents occur as:

The flow of river water in rivers and estuaries;

Permanent flows in other restricted waters, for example İstanbul Boğazı (Bosporus);

Permanent or seasonal oceanic currents;
Temporary wind-induced currents.

Only surface currents should be encoded. It is particularly important to depict currents (both the main flows and permanent eddies) which could set a vessel towards dangers.

====Coast Pilot examples====
(95) Rotary currents and Gulf Stream currents could be discussed at considerable length, but the important currents are those in the inlets and the inside passages; the tidal currents have considerable velocity in all of the entrances, and their direction is affected by the force and direction of the wind. (See the Tidal Current Tables at tidesandcurrents.noaa.gov/curr_pred.html for detailed information.)

---

(96) The current velocity is about 2 knots in Cape May Inlet.

---

(19) Current velocities may reach 3 knots in the inlets and in the narrow channels that connect the inlets with the inside waters.

---

(40) The current velocity in Manasquan Inlet is about 1.8 knots in the inlet and 2.2 knots at the State Route 35 bridge.
---

(91) Cross currents may be experienced in the approach channel to Tuckerton Creek. A speed limit of 8 miles per hour is prescribed for the channel. (See 33 CFR 162.30, Chapter 2.)

---

(176) In Cape May Canal, the current velocity is 1.9 knots at the east end and 0.9 knot at the west end; passage of barge tows may be delayed because of tide and current conditions.
---

(51) The current velocity is 1.8 knots in Delaware Bay entrance. (See the Tidal Current Tables for daily predictions.) The tables also list current differences and other constants for about 55 other places in Delaware Bay and River

---

(99) The current velocity is 1.5 knots on the flood and 1.0 knot on the ebb. In 1980, it was reported that current velocities up to 3 knots on the flood and 4 knots on the ebb may be encountered in the river. Occasional periods of lower than normal low water levels were encountered.

---

(111) The current velocity off the entrance is about 0.7 knot.

---

(123) The channels have strong currents, and many tide rips form near Prissy Wicks Shoal. In unmarked Cape May Channel, the current velocity is 1.5 knots on the flood and 2.3 knots on the ebb. In the channel immediately northwestward of Overfalls Shoal, the velocity is 2 knots on the flood and 1.9 knots on the ebb.

---

(133) The current velocity is about 1 knot in the entrance and about 2.3 knots at Mauricetown; at Millville, the flood is very weak and the ebb velocity is 0.4 knot. Owing to dereliction of the dikes along the river, greater current velocities have been reported; extreme care is required in docking

---

(154) High water at Bridgeton is about 2 hours later than at the entrance. The current velocity is about 1.3 knots half a mile above the entrance and less than 0.5 knot at Bridgeton.

---

(171) The tides at Salem are about 35 minutes later than at Reedy Island. The current velocity is about 1.6 knots in the entrance. The maximum expected current in the land cut is 3 knots

---

(237) The current velocity is about 1.7 knots at Marcus Hook.

---

(256) The current velocity is 1.7 knots on the flood and 2.2 knots on the ebb off Eddystone, Mile 73N.

---

(264) The current velocity is about 2 knots a half-mile east of Crab Point.

---

(272) The current velocity is about 2 knots in the channel opposite the anchorage.

---

(344) In Schuylkill River, the current velocity is about 0.5 knot at the entrance.

---

(398) The current velocity is 1.3 knots on the flood and 1.6 knots on the ebb in the main channel west of Burlington Island. In the back channel east of the island, the velocity is 0.9 knot on the flood and 1.8 knots on the ebb.

---

(408) The current velocity in Whitehill Range off Fieldsboro is 1.4 knots on the ebb; the flood current is weak and of short duration.

---

(85) The current velocity is 2.6 knots on the flood and 2.1 knots on the ebb at the Reedy Point bridge and about 2 knots at the Chesapeake City bridge. The flood sets eastward and the ebb westward. (See the Tidal Current Tables for daily predictions for Chesapeake City.) Storms may increase these velocities to 3.0 knots or more; at such times, tows usually have difficulty in making headway against the current.

---

(20) The currents have considerable velocity in the inlets and in the narrow channels connecting the inlets with adjacent bays and sounds. Velocities of as much as 3 knots may be encountered at times in places where the currents are strongest.

---

(45) The current velocity is about 2 knots; caution is necessary, because the buoys sometimes tow under.

---

(51) The current velocity is 1.0 knot on the flood and 1.5 knots on the ebb in Chesapeake Bay Entrance. (See the Tidal Current Tables for daily predictions.)

---

(15) The currents in James River follow the general direction of the channel, except between Hog Island and Jamestown Island, 25 miles above the mouth, where they set across Goose Hill Flats. In the lower reaches, the velocity of flood is about equal to that of ebb. Near Richmond, the drainage flow predominates and the current seldom, if ever, sets upstream. These normal conditions are subject to change by wind and freshets.

(16) During severe winters some drift ice appears, and at times the river freezes over, but navigation to Richmond hardly ever is suspended because the ice is broken up by a tug.

(17) Freshets occur irregularly in the fall, winter and spring; their height at Richmond ranges from 6 to 32 feet, though the latter is exceptional. The maximum freshet heights usually occur between the middle of March and the middle of April; the freshets occurring at other times usually reach heights not greater than about 6 feet above the normal high water. The number of freshets that cause the water to rise above the level of the wharves along the main channel at Richmond averages about one per year; the water seldom rises above the level of the city wharf. The flood heights diminish rapidly below Richmond; the extreme is about 11 feet less at Dutch Gap, and the rise is not felt at Hopewell. The cutoffs have reduced the freshet height at Richmond about 1 foot.

---

(30) In Nansemond River, the current velocity is about 0.9 knot and follows the general direction of the channel

---

(135) The currents follow the general direction of the channel. The velocities throughout the river are usually weak, averaging less than 1 knot at the entrance to 1.4 knots at Tappahannock. Times of slack water and strength of current become later going upriver. These normal conditions are subject to change by winds and changes in drainage flow

---

(22) The current in Chesapeake Bay off the mouth of Potomac River can be hazardous to smaller vessels and pleasure boats at ebb tide, when wind and current are opposed and with northwest winds. These conditions are more pronounced off Smith Point. The currents in the Potomac River follow the general direction of the channel. The velocities vary throughout the river and are influenced by wind and freshets. There may be little or no flood current during freshets. (23) The current velocity is weak in the lower part of the river between the entrance and Piney Point, averaging less than 1.0 knot. (See Tidal Current Tables for predictions.)

---

(106) Strong tidal currents set across the main channel off Monie Bay; the current velocity in the entrance to the river is 0.6 knot on the flood and 0.9 knot on the ebb.
---
(130) The current velocity in Nanticoke River is 1.2 knots in the entrance. The water is fresh above Vienna. Ice forms on the river in winter, but ordinarily there is enough traffic to keep the channel open. Spring freshets do not interfere with navigation.

---

(277) The current velocity is less than 1.0 knot. The river is usually closed to navigation by ice for extended periods during ordinary winters; in mild winters the channel is kept clear most of the time by powerboats. The river water is fresh above Chestertown.

---

(39) Prolonged winds of constant direction may cause substantial variation in the tide. Currents in the harbor are 0.8 knot on the flood and ebb.

====Germany Example====
at S to W winds expiring flow

at N to O winds incoming flow

Flow rates up to 2.5 nm/h
Maximum in the Friedrichsorter Enge

the lighthouse Kiel at strong NO and SO-W-winds Liche flow to 2 sm/h

====Possible Data Elements Needed====
Velocity
velocity value- float
Velocity units - knot
Velocity qualifier - (equal to), less than, greater than, about
Velocity direction - flood, ebb, flood and ebb, none
Applicability
Feature - some ENC feature names, some locations described
Relation To Feature - above, in, near, at, off, east of, throughout
Tidal Current strength - strong
Tidal Current Direction of set - follow the general direction of the channel, The flood sets eastward and the ebb westward
Warning Note
Water Level

====NOTES====

===Tidal Streams - flood/ebb===
====S-101====
From DCEG
Geo Feature: TidalStream –Flood/Ebb (TS_FEB)

IHO Definition: TIDAL STREAMS. The alternating horizontal movement of water associated with the rise and fall of the tide caused by tide-producing forces. Also called tidal current. (IHO Dictionary –S-32). Approximate tidal stream rates may be given as discrete rate values for flood and ebb flow during springs. (S-57 Edition 3.1, Appendix A –Chapter 1, Page 1.173, November 2000).

======S-101 Attributes======
=====Remarks=====
====Coast Pilot examples====
====Possible Data Elements Needed====
====NOTES====

===Sea Level and Tides===
*Sea Level
*Tides

==Sea and Swell==
*Sea Conditions
*Swell Conditions
*Tropical Disturbances
*Abnormal Waves

==Sea Water Characteristics==
*Salinity
*Density
*Sea Surface Temperature

==Maritime Topography==
''(these terms origniated from scanning the publications and discussing among the group which were the most SIGNIFICANT features a mariner needed for navigation)''

*General Remarks
**Chart reference
**general description of the area (topological as well as submarine)
*Seabed and Features
**Deeps
**Ridges and Plateaux
**Shoals and Banks
*Submarine Springs
*Volcanic Activity
*Seismic Activity

==Climate and Weather==
*General Information
*General Conditions
**Climate
**Visibility
**Cyclones
*Pressure
**Average Distribution
**Variability
**Diurnal Variation
**Abnormal Falls
*Anticyclones
**Sub-tropical high pressure belt
*Depressions
**General Information
**Cyclones, tropical storms, tropical depressions
**Classification
**Occurrence
**Average occurrence of tropical storms and cyclones in the SW indian ocean (this seems too specific for a heading)
**Movement
*Fronts
**Cold Fronts
**The intertropical convergence zone
*Winds
**General information
**South-east trade winds
**The North-west monsoon
**Light or moderate variable winds
**The Westerlies
**Coastal Areas
**Land and sea breeze
*Gales
**General Information
**Winds north of 30°S
**Winds south of 30°S
**Squalls
**Waterspouts
*Cloud
**North of 30°S
**The sub-tropical belt of high pressure
**South of 30°S
*Precipitation
**General Information
**The North-west monsoon and ITCZ
**Madagascar
**La Reunion, tec
**Cycolones
**The sub-tropical belt of high pressure
*Fog and visibility
**Sea fog
**Radiation fog
*Air Temperature
**Open sea
**Coastal areas
*Humidity
**General Information
**Open sea N of 30°S
**South of 30°S

==Climate Information==
*Climate Station Information

==QUESTIONS/COMMENTS/MISSING ITEMS==
* Where are the Physical Descriptions of features, approaches, ports, anchorages, etc?
* Are references to external documents (i.e. Mariner's Handbook) to be kept or actual data from the reference or attach pdf?
* S-26 ?(undersea feature names) should be incorporated into this

S-126

2020-01-07T16:42:23Z

Briana: /* Currents and Flow */

'''Physical Environment'''
 ''a place to discuss and follow the work''

Knowledgeable WG members: briana sullivan (UNH), Jens Schröder-Fürstenberg (Germany), Tom Loeper (USA), Yves Le Franc (SHOM)

OLD ORIGINAL - Sample Test Data [[FILE:Physical_Environment_Test_Data_Sample.docx]] (NOTE: we are now using real samples from US Coast Pilot and US Sailing Directions)

[http://www.iho.int/mtg_docs/com_wg/NIPWG/NIPWG2/NIPWG%202-22.1%20%20Annex%20A%20Physical_Environment_Test_Data_Sample.pdf NEW listing of terms with data source (Annex A)]

[[FILE: Coast_Chart_Term_Frequency_NIPWG_Version.xlsx]] - a new list of terms compiled from all possible sources related to the Physical Environment that contains statistics on the frequency of word use within the 9 volumes of the US Coast Pilot. It will be used as a guide to focus on terms to research and build use case scenarios so we know what is of value to model and what doesn't need representation.

==Magnetic Variations and Local Anomalies==
*Magnetic Variations
*Magnetic Anomalies

===S-101===
From DCEG
Geo Feature Magnetic Data

====Magnetic Variation - '''MAGVAR''' (4.1)====

S-101 Geo Feature

The angle between the magnetic and geographic meridians at any place, expressed in degrees east or west to indicate the direction of magnetic north from true north. Also called magnetic declination. (IHO Dictionary –S-32).

(until a world magnetic model is universally available for inclusion in ECDIS mag var is most important magnetic data for the mariner. Updates should be supplied every five years to coincide with changes of epoch).

=====S-101 Attributes=====
'''RYRMGV''' - reference year for magnetic variation. (YYYY)
'''VALACM''' - value of annual change in magnetic variation. (+/- minutes: easterly/westerly)
'''SCAMIN''' - scale minimum

====Local Magnetic Anomaly - '''LOCMAG''' (4.2)====

S-101 Geo Feature

An anomaly of the magnetic field of the Earth, extending over a relatively small area, due to local magnetic influences. Also called local attraction or magnetic anomaly. (IHO Dictionary –S-32).

If it is required to encode an abnormality in magnetic variation for a localised area, it must be done using the feature Local Magnetic Anomaly. If the area cannot be defined, the feature should be represented as a point.

=====S-101 Attributes=====
Feature Name
display name
language
name '''OBJNAM/NOBJNM'''
reported date '''SORDAT'''
value of local magnetic anomaly
magnetic anomaly value maximum '''VALLMA'''
magnetic anomaly value minimum
scale minimum '''SCAMIN'''

====Remarks====
Where the mandatory complex attribute value of local magnetic anomaly contains a value in the sub-attribute magnetic anomaly value maximum only, the deviation is assumed to be positive and negative by that amount. Where the positive and negative values for the local magnetic anomaly differ, the positive value must be populated in anomaly value maximum, and the negative value in the sub-attribute magnetic anomaly value minimum. The plus/minus character must not be encoded.

Abnormal magnetic variation should not be encoded unless it varies by more than about 3° from the normal magnetic variation (see clause 4.1) for the area.

===Coast Pilot examples===
(120) Differences of as much as 5° from the normal variation have been observed near the mouth of Smyrna River.

(166) Differences of as much as 2° to 5° from normal variation have been observed along the channel from Artificial Island to Marcus Hook.

(232) Differences of 2° to 5° from normal variation have been observed astride the Delaware River Channel from Oldmans Point to the mouth of Oldmans Creek.

(79) Differences of as much as 6° from the normal variation have been observed in Elk River Channel from Courthouse Point to Old Town Point.

(30) Differences of as much as 6° from the normal variation have been observed 3 to 17 miles offshore from Cape Henry to Currituck Beach Light.

(130) Differences of as much as 5° from the normal variation have been observed in the channel from Pooles Island to Howell Point (chart 12274).

(180) Differences of 3° to 8° from normal variation have been observed in Elk River channel from Grove Point to Courthouse Point.

===Possible Data Elements Needed===
Observation location description - would it be HELPFUL to have the cultural points within the area maintained?

(perhaps it is more understandable for someone to keep in their mind map of the area the familiar names delineating the locations vs only an outline on the chart?)

===NOTES===
For the US... the Magnetic Variation area is the bounds of a given chart...yet the Coast Pilot clearly has variations that are within the magnetic variation bounds of the chart. (Yet there are none encoded in the ENC).

==Ice Conditions==
*Drift Ice
*Icebergs

===S-101===
From DCEG

====Ice Area '''ICEARE''' (5.13)====

S-101 Geo Feature (Surface)

An area of ice over land or water. (S-57 Edition 3.1, Appendix A –Chapter 1, Page 1.84, November 2000).

=====S-101 Attributes=====
category of ice (CATICE)
1 : fast ice
5 : glacier
8 : polar ice
elevation (ELEVAT)
feature name
display name
language
name(OBJNAM)/(NOBJNM)
height (HEIGHT)
periodic date range
date end(PEREND)
date start(PERSTA)
reported date(SORDAT)
status(STATUS)
1 : permanent
5 : periodic/intermittent
18 : existence doubtful
vertical length(VERLEN)
visually conspicuous (CONVIS)
1 : visually conspicuous
2 : not visually conspicuous
3 : prominent
scale minimum (SCAMIN)

====Remarks====
Ice Area features that are located in the sea must be covered by an Unsurveyed Area feature, if the depth of water beneath them is unknown, or covered by a Depth Area feature, if the depth is known.

As ice fronts move, a date when the limit was surveyed should be included, if possible, using the attribute reported date.

Glaciers(see S-4 –B-353.8) If it is required to encode the portion of a glacier that is on land, it must be done using an Ice Area feature, with attribute category of ice= 5 (glacier) covered by a Land Area feature (that is, the glacier does not form a hole in the land area).

If the seaward edge of an encoded glacier is coincident with the coastline, this edge should be encoded using a Coastline feature, with attribute category of coastline=6 (glacier (seaward end)), and the coastline’s spatial type should have the attribute quality of horizontal measurement=4 (approximate) for the visible coastline.

===Coast Pilot examples===
(97) The intracoastal passages of New Jersey, Delaware and Maryland usually are closed by ice during ordinary winters; the Virginia passages are closed only during severe winters and then only for short periods. Local vessels use all the inlets and adjacent channels from Sandy Hook to Cape Charles all winter, even when through navigation is blocked.

(98) In Delaware River, ice is present in sufficient amounts even in ordinary winters to be of some concern. The Chesapeake and Delaware Canal is kept open as long as possible but may be closed at times. In severe winters, navigation has been interrupted above Chester but tugs and large vessels keep the channels open to Philadelphia. Above Philadelphia, the river may be closed for extended periods in January and February, and navigation is practically suspended during severe winters.

(99) Ice seldom interferes with navigation of full-powered vessels in Hampton Roads even in severe winters. Large vessels can always pass up and down Chesapeake Bay, but ice jams are of frequent occurrence off Baltimore Harbor. The harbor itself sometimes freezes over and navigation may be blocked for small, low-powered vessels for limited periods.

(100) Conditions in other Chesapeake Bay tributaries are somewhat similar to those in the same latitudes along the coast. Ice is not much of a problem in the southerly tributaries. The upper part of Potomac River is closed during severe winters, and Patuxent River is closed nearly to the mouth. Severn River, strangely enough, is said to remain open except for short periods in severe winters. Susquehanna River, at the head of the bay, usually is completely closed for about 3 months. Ice conditions in the Eastern Shore tributaries correspond roughly to those across the bay.

(101) During some winter months or when threatened by icing conditions, lighted buoys may be removed from station or replaced by unlighted buoys; unlighted buoys, daybeacons and lights on marine sites also may be removed. (See LIGHT LIST.)

(102) For icing hazards to vessels see Superstructure icing, following.

(135) Ice may be encountered on Maurice River from the latter part of December through the early part of March.

(87) '''Ice sufficient to interfere with the navigation of small craft may be expected at any time between December and April and is worst during January and February.''' The canal is kept open as long as possible. During mild winters, local vessels use the canal throughout most of the season, but strangers should make inquiries before attempting passage. Wooden vessels passing through thin ice are liable to be cut through at the waterline. Vessels with low horsepower are cautioned against transiting the canal in heavy ice.

===Possible Data Elements Needed===
type of ice - ice barriers, impoundments, pack ice (Germany), thin ice, heavy/heavier ice, sufficient ice (US)

disability - ice pressure, passage disability (Germany), interruption

closure times - ordinary winters, severe winters (US)

closure duration - short periods, extended periods, entire winter (data range) (US)

seasonal notes on passage/navigation - ice seldom forms before January

applicability - local vessels, strangers, small, low-powered/low horsepower vessels, large vessels, full-powered vessels, Wooden vessels

===NOTES===
would S-101 feature name contain the ice area names included in the text (ex: New Jersey, Delaware, Maryland intracoastal passages, Virginia passages, channels from Sandy Hook to Cape Charles). If not, it might be a data element for S-126 Ice Area Name(s).

S-101 ICEARE - CATICE - is fast ice also "running ice" or "moving ice"?
S-101 ICEARE - periodic date range - textual descriptions have ranges with types of ice (ex. Thin ice has been known to form early in December between Chester and Philadelphia, but the heavier ice usually does not begin to run before January.)

==Currents and Flow==

**General Information
**Named Currents
**Seasonal Currents

===Current –non-gravitational===
====S-101====
From DCEG
S-101 Geo Feature:Current –Non-Gravitational (CURENT) 10.3

IHO Definition: CURRENT –NON-GRAVITATIONAL. Any current that is caused by other than tide producing forces. Also called non-tidal current.(IHO Dictionary –S-32).

======S-101 Attributes======
feature name
display name
language
name(OBJNAM) (NOBJNM)
fixed date range
date end (DATEND)
date start (DATSTA)
Orientation
orientation uncertainty
orientation value (ORIENT)
periodic date range
date end (PEREND)
date start (PERSTA)
Speed
speed maximum (CURVEL)
speed minimum
Status (STATUS)
scale minimum (SCAMIN)

=====Remarks=====
10.3.1 Current data (see S-4 –B-408)The term “current(s)” in this document is used to describe water movements which are generally constant in direction, and are not dependent on astronomical conditions (that is, are non-gravitational). A current is described by the direction towards which it is running. For tidal streams, see clauses10.2 and 10.5.

Currents occur as:

The flow of river water in rivers and estuaries;

Permanent flows in other restricted waters, for example İstanbul Boğazı (Bosporus);

Permanent or seasonal oceanic currents;
Temporary wind-induced currents.

Only surface currents should be encoded. It is particularly important to depict currents (both the main flows and permanent eddies) which could set a vessel towards dangers.

====Coast Pilot examples====
(95) Rotary currents and Gulf Stream currents could be discussed at considerable length, but the important currents are those in the inlets and the inside passages; the tidal currents have considerable velocity in all of the entrances, and their direction is affected by the force and direction of the wind. (See the Tidal Current Tables at tidesandcurrents.noaa.gov/curr_pred.html for detailed information.)

---

(96) The current velocity is about 2 knots in Cape May Inlet.

---

(19) Current velocities may reach 3 knots in the inlets and in the narrow channels that connect the inlets with the inside waters.

---

(40) The current velocity in Manasquan Inlet is about 1.8 knots in the inlet and 2.2 knots at the State Route 35 bridge.
---

(91) Cross currents may be experienced in the approach channel to Tuckerton Creek. A speed limit of 8 miles per hour is prescribed for the channel. (See 33 CFR 162.30, Chapter 2.)

---

(176) In Cape May Canal, the current velocity is 1.9 knots at the east end and 0.9 knot at the west end; passage of barge tows may be delayed because of tide and current conditions.
---

(51) The current velocity is 1.8 knots in Delaware Bay entrance. (See the Tidal Current Tables for daily predictions.) The tables also list current differences and other constants for about 55 other places in Delaware Bay and River

---

(99) The current velocity is 1.5 knots on the flood and 1.0 knot on the ebb. In 1980, it was reported that current velocities up to 3 knots on the flood and 4 knots on the ebb may be encountered in the river. Occasional periods of lower than normal low water levels were encountered.

---

(111) The current velocity off the entrance is about 0.7 knot.

---

(123) The channels have strong currents, and many tide rips form near Prissy Wicks Shoal. In unmarked Cape May Channel, the current velocity is 1.5 knots on the flood and 2.3 knots on the ebb. In the channel immediately northwestward of Overfalls Shoal, the velocity is 2 knots on the flood and 1.9 knots on the ebb.

---

(133) The current velocity is about 1 knot in the entrance and about 2.3 knots at Mauricetown; at Millville, the flood is very weak and the ebb velocity is 0.4 knot. Owing to dereliction of the dikes along the river, greater current velocities have been reported; extreme care is required in docking

---

(154) High water at Bridgeton is about 2 hours later than at the entrance. The current velocity is about 1.3 knots half a mile above the entrance and less than 0.5 knot at Bridgeton.

---

(171) The tides at Salem are about 35 minutes later than at Reedy Island. The current velocity is about 1.6 knots in the entrance. The maximum expected current in the land cut is 3 knots

---

(237) The current velocity is about 1.7 knots at Marcus Hook.

---

(256) The current velocity is 1.7 knots on the flood and 2.2 knots on the ebb off Eddystone, Mile 73N.

---

(264) The current velocity is about 2 knots a half-mile east of Crab Point.

---

(272) The current velocity is about 2 knots in the channel opposite the anchorage.

---

(344) In Schuylkill River, the current velocity is about 0.5 knot at the entrance.

---

(398) The current velocity is 1.3 knots on the flood and 1.6 knots on the ebb in the main channel west of Burlington Island. In the back channel east of the island, the velocity is 0.9 knot on the flood and 1.8 knots on the ebb.

---

(408) The current velocity in Whitehill Range off Fieldsboro is 1.4 knots on the ebb; the flood current is weak and of short duration.

---

(85) The current velocity is 2.6 knots on the flood and 2.1 knots on the ebb at the Reedy Point bridge and about 2 knots at the Chesapeake City bridge. The flood sets eastward and the ebb westward. (See the Tidal Current Tables for daily predictions for Chesapeake City.) Storms may increase these velocities to 3.0 knots or more; at such times, tows usually have difficulty in making headway against the current.

---

(20) The currents have considerable velocity in the inlets and in the narrow channels connecting the inlets with adjacent bays and sounds. Velocities of as much as 3 knots may be encountered at times in places where the currents are strongest.

---

(45) The current velocity is about 2 knots; caution is necessary, because the buoys sometimes tow under.

---

(51) The current velocity is 1.0 knot on the flood and 1.5 knots on the ebb in Chesapeake Bay Entrance. (See the Tidal Current Tables for daily predictions.)

---

(15) The currents in James River follow the general direction of the channel, except between Hog Island and Jamestown Island, 25 miles above the mouth, where they set across Goose Hill Flats. In the lower reaches, the velocity of flood is about equal to that of ebb. Near Richmond, the drainage flow predominates and the current seldom, if ever, sets upstream. These normal conditions are subject to change by wind and freshets.

(16) During severe winters some drift ice appears, and at times the river freezes over, but navigation to Richmond hardly ever is suspended because the ice is broken up by a tug.

(17) Freshets occur irregularly in the fall, winter and spring; their height at Richmond ranges from 6 to 32 feet, though the latter is exceptional. The maximum freshet heights usually occur between the middle of March and the middle of April; the freshets occurring at other times usually reach heights not greater than about 6 feet above the normal high water. The number of freshets that cause the water to rise above the level of the wharves along the main channel at Richmond averages about one per year; the water seldom rises above the level of the city wharf. The flood heights diminish rapidly below Richmond; the extreme is about 11 feet less at Dutch Gap, and the rise is not felt at Hopewell. The cutoffs have reduced the freshet height at Richmond about 1 foot.

---

(30) In Nansemond River, the current velocity is about 0.9 knot and follows the general direction of the channel

---

(135) The currents follow the general direction of the channel. The velocities throughout the river are usually weak, averaging less than 1 knot at the entrance to 1.4 knots at Tappahannock. Times of slack water and strength of current become later going upriver. These normal conditions are subject to change by winds and changes in drainage flow

---

(22) The current in Chesapeake Bay off the mouth of Potomac River can be hazardous to smaller vessels and pleasure boats at ebb tide, when wind and current are opposed and with northwest winds. These conditions are more pronounced off Smith Point. The currents in the Potomac River follow the general direction of the channel. The velocities vary throughout the river and are influenced by wind and freshets. There may be little or no flood current during freshets. (23) The current velocity is weak in the lower part of the river between the entrance and Piney Point, averaging less than 1.0 knot. (See Tidal Current Tables for predictions.)

---

(106) Strong tidal currents set across the main channel off Monie Bay; the current velocity in the entrance to the river is 0.6 knot on the flood and 0.9 knot on the ebb.
---
(130) The current velocity in Nanticoke River is 1.2 knots in the entrance. The water is fresh above Vienna. Ice forms on the river in winter, but ordinarily there is enough traffic to keep the channel open. Spring freshets do not interfere with navigation.

---

(277) The current velocity is less than 1.0 knot. The river is usually closed to navigation by ice for extended periods during ordinary winters; in mild winters the channel is kept clear most of the time by powerboats. The river water is fresh above Chestertown.

---

(39) Prolonged winds of constant direction may cause substantial variation in the tide. Currents in the harbor are 0.8 knot on the flood and ebb.

====Germany Example====
at S to W winds expiring flow

at N to O winds incoming flow

Flow rates up to 2.5 nm/h
Maximum in the Friedrichsorter Enge

the lighthouse Kiel at strong NO and SO-W-winds Liche flow to 2 sm/h

====Possible Data Elements Needed====
====NOTES====

===Tidal Streams - flood/ebb===
====S-101====
From DCEG
Geo Feature: TidalStream –Flood/Ebb (TS_FEB)

IHO Definition: TIDAL STREAMS. The alternating horizontal movement of water associated with the rise and fall of the tide caused by tide-producing forces. Also called tidal current. (IHO Dictionary –S-32). Approximate tidal stream rates may be given as discrete rate values for flood and ebb flow during springs. (S-57 Edition 3.1, Appendix A –Chapter 1, Page 1.173, November 2000).

======S-101 Attributes======
=====Remarks=====
====Coast Pilot examples====
====Possible Data Elements Needed====
====NOTES====

===Sea Level and Tides===
*Sea Level
*Tides

==Sea and Swell==
*Sea Conditions
*Swell Conditions
*Tropical Disturbances
*Abnormal Waves

==Sea Water Characteristics==
*Salinity
*Density
*Sea Surface Temperature

==Maritime Topography==
''(these terms origniated from scanning the publications and discussing among the group which were the most SIGNIFICANT features a mariner needed for navigation)''

*General Remarks
**Chart reference
**general description of the area (topological as well as submarine)
*Seabed and Features
**Deeps
**Ridges and Plateaux
**Shoals and Banks
*Submarine Springs
*Volcanic Activity
*Seismic Activity

==Climate and Weather==
*General Information
*General Conditions
**Climate
**Visibility
**Cyclones
*Pressure
**Average Distribution
**Variability
**Diurnal Variation
**Abnormal Falls
*Anticyclones
**Sub-tropical high pressure belt
*Depressions
**General Information
**Cyclones, tropical storms, tropical depressions
**Classification
**Occurrence
**Average occurrence of tropical storms and cyclones in the SW indian ocean (this seems too specific for a heading)
**Movement
*Fronts
**Cold Fronts
**The intertropical convergence zone
*Winds
**General information
**South-east trade winds
**The North-west monsoon
**Light or moderate variable winds
**The Westerlies
**Coastal Areas
**Land and sea breeze
*Gales
**General Information
**Winds north of 30°S
**Winds south of 30°S
**Squalls
**Waterspouts
*Cloud
**North of 30°S
**The sub-tropical belt of high pressure
**South of 30°S
*Precipitation
**General Information
**The North-west monsoon and ITCZ
**Madagascar
**La Reunion, tec
**Cycolones
**The sub-tropical belt of high pressure
*Fog and visibility
**Sea fog
**Radiation fog
*Air Temperature
**Open sea
**Coastal areas
*Humidity
**General Information
**Open sea N of 30°S
**South of 30°S

==Climate Information==
*Climate Station Information

==QUESTIONS/COMMENTS/MISSING ITEMS==
* Where are the Physical Descriptions of features, approaches, ports, anchorages, etc?
* Are references to external documents (i.e. Mariner's Handbook) to be kept or actual data from the reference or attach pdf?
* S-26 ?(undersea feature names) should be incorporated into this

S-126

2020-01-06T19:46:04Z

'''Physical Environment'''
 ''a place to discuss and follow the work''

Knowledgeable WG members: briana sullivan (UNH), Wilfred den Toom (NL), Tom Loeper (USA), Yves Le Franc (SHOM)

Sample Test Data: [[FILE: Physical_Environment_Test_Data_Sample.docx]]

[http://www.iho.int/mtg_docs/com_wg/NIPWG/NIPWG2/NIPWG%202-22.1%20%20Annex%20A%20Physical_Environment_Test_Data_Sample.pdf annex]

[[FILE: Coast_Chart_Term_Frequency_NIPWG_Version.xlsx]] - a new list of terms compiled from all possible sources related to the Physical Environment that contains statistics on the frequency of word use within the 9 volumes of the US Coast Pilot. It will be used as a guide to focus on terms to research and build use case scenarios so we know what is of value to model and what doesn't need representation.

==Maritime Topography==
''(these terms origniated from scanning the publications and discussing among the group which were the most SIGNIFICANT features a mariner needed for navigation)''

*General Remarks
**Chart reference
**general description of the area (topological as well as submarine)
*Seabed and Features
**Deeps
**Ridges and Plateaux
**Shoals and Banks
*Submarine Springs
*Volcanic Activity
*Seismic Activity

==Magnetic Variations and Local Anomalies==
*Magnetic Variations
*Magnetic Anomalies

==Currents, Tidal Strams and Flow==
*Currents
**General Information
**Named Currents
**Seasonal Currents
*Titdal Streams

==Sea Level and Tides==
*Sea Level
*Tides

==Sea and Swell==
*Sea Conditions
*Swell Conditions
*Tropical Disturbances
*Abnormal Waves

==Sea Water Characteristics==
*Salinity
*Density
*Sea Surface Temperature

==Ice Conditions==
*Drift Ice
*Icebergs

==Climate and Weather==
*General Information
*General Conditions
**Climate
**Visibility
**Cyclones
*Pressure
**Average Distribution
**Variability
**Diurnal Variation
**Abnormal Falls
*Anticyclones
**Sub-tropical high pressure belt
*Depressions
**General Information
**Cyclones, tropical storms, tropical depressions
**Classification
**Occurrence
**Average occurrence of tropical storms and cyclones in the SW indian ocean (this seems too specific for a heading)
**Movement
*Fronts
**Cold Fronts
**The intertropical convergence zone
*Winds
**General information
**South-east trade winds
**The North-west monsoon
**Light or moderate variable winds
**The Westerlies
**Coastal Areas
**Land and sea breeze
*Gales
**General Information
**Winds north of 30°S
**Winds south of 30°S
**Squalls
**Waterspouts
*Cloud
**North of 30°S
**The sub-tropical belt of high pressure
**South of 30°S
*Precipitation
**General Information
**The North-west monsoon and ITCZ
**Madagascar
**La Reunion, tec
**Cycolones
**The sub-tropical belt of high pressure
*Fog and visibility
**Sea fog
**Radiation fog
*Air Temperature
**Open sea
**Coastal areas
*Humidity
**General Information
**Open sea N of 30°S
**South of 30°S

==Climate Information==
*Climate Station Information

==QUESTIONS/COMMENTS/MISSING ITEMS==
* Where are the Physical Descriptions of features, approaches, ports, anchorages, etc?
* Are references to external documents (i.e. Mariner's Handbook) to be kept or actual data from the reference or attach pdf?
* S-26 ?(undersea feature names) should be incorporated into this

File:Coast Chart Term Frequency NIPWG Version.xlsx

2018-03-15T09:37:07Z

Briana: This list was based on 127 items Wilfred and briana compiled from the various sources and compared the terms to all 9 volumes of the Coast Pilot. It is interesting to see the breakdown by book but even more telling to see the overall word use. It is a...

This list was based on 127 items Wilfred and briana compiled from the various sources and compared the terms to all 9 volumes of the Coast Pilot. It is interesting to see the breakdown by book but even more telling to see the overall word use. It is a much more accurate and advanced analysis than the one I provided for the meeting and a great starting point for further research by our S-126 project team.

Main Page

2017-12-21T16:54:06Z

Briana: changed it back...sorry,,,, need to confirm number changed for sure (s128 page will need to be changed too)

Main Page

2017-12-21T16:52:24Z

Briana: updated the s-128 marine services number

Talk:SNPWG

2017-12-12T19:11:05Z

Briana: /* example of page for open dictionary */

[[User:Rmm|raphael]] 09:34, 12 May 2009 (CEST) : I think it might be useful to have an introductory paragraph or two describing the scope of the SNPWG model, i.e., saying what the model is supposed to do and what is not expected of it. The Terms of Reference do not say much more than develop guidelines for preparing nautical publications in a digital format compatible with ECDIS. For example, is the aim to list all possible categories of attributes, or just those thought to be most commonly used? (The latter, I'd say.)

(Update: Also, how literally to interpret the definitions - I just placed an example in the discussion page for [[Talk:ntctim|ntctim]].)

[[User:Jens|jens]] 13:32, 12 May 2009 (CEST)

I have replied on the definition issue at [[Talk:ntctim|ntctim]].

Recently I have discussed the completeness of attributes available or only being used. At the moment we have worked out a compromise in our data model. We tried to collect all attributes needed for objects developed by SNPWG. Where attributes have been added for existing objects we collected all attributes provided by S57 too. Although some of those are not needed by SNPWG. The flexibility in S100 might cause the case that we have to mix attributes and attribute values more than today. That should be taken into account when developing the ProdSpec.

The introductory paragraph will be discussed with David. He speaks better English than I ever could.

[[User:Jens|jens]] 04:56, 20 August 2010 (UTC) I propose to introduce Time Zone and Day Light Saving Time.
 Reasons are Eivind's suggestions and the double check of current existing ECDIS machines which are mostly not be able to handle that sufficiently. The most machines are calculating ETA in UTC and let the mariner do the time calculation. I think it is worth letting the machine do the work.
 What do you think?, Worth being proceeded?

[[User:DavidAcland|DavidAcland]] 15:12, 25 August 2010 (UTC)

Definitely. Exactly the sort of mind numbing detail for the machine to work out and provide.

[[User:Rmm|raphael]] 10:44, 21 February 2014 (UTC): Suggest adding feature Coastguard Station (CGUSTA) as a temporary expedient, because it may be needed for Radio Services data. The S-101 DCEG uses it for encoding MRCCs. In the absence of any provision for cross-data-product linkage or references, it may be necessary to include it in radio services data sets. The only thematic attributes needed in Radio Service are ''featureName'' and ''information'' both of which are complex attributes and inherited from the generic FeatureType class in the application schema.

[[User:Jens|jens]] 08:52, 25 February 2014 (UTC) okay, Not all MRCCs belong to the CG though. That is an existing S-57 feature and we don't have amendments to it. Thus, we can simply use it in our ProdSpec and we should not add it to the collection of features.

[[User:Rmm|raphael]] 14:37, 25 February 2014 (UTC): Agreed, no need to list it on the Wiki. I have included it in the application schema. Also BUISGL and Landmark, which are also used for encoding the location of a radio station in S-101.

== example of page for closed dictionary codelist ==

Attribute: producer code for IHO member state

Acronym: PRCDMS

Camel case: producerCodeIHOMemberState

Attribute type: S100_Codelist

Data type: (product specification determines)

Definitions:

IHO member state producer code

Tagged values:

{| style="background:#ccc99; color:black;" border="1" cellpadding="5" cellspacing="0"
!Tag name!!Value
|-
|codelistType||closed dictionary
|-
|URI||http://iho.registry.site/AgencyCodes/MemberStates
|-
|encoding||n/a
|}

Expected Input:

(not applicable)

Definitions

(none)

Reference:

(Permanent location of dictionary) http://iho.registry.site/s100_gi_registry/AgencyCodeRegisters/acr_home.php?register_type=4

Remarks:

This is just an example, the URI is made up, and so is the Reference location. The IHO registry actually has a list but it is an interactive Web page and not an actual list because there isn't as of now a URL where this dictionary can be directly accessed. A real codelist dictionary would have a permanent URL where software could retrieve or access the list, and the list itself would be in some kind of XML format so software could parse it.

The URI tag in the table above identifies the codelist, it could (ideally) be the same as the permanent location.

Dictionaries need to be key-value pairs, in this list the key would be the 2-letter producer code, the value the name of the producer state.

== example of page for open dictionary ==

Attribute: producer code for IHO member state

Acronym: PRCDMS

Camel case: producerCodeIHOMemberState

Attribute type: S100_Codelist

Data type: (product specification determines)

Definitions:

IHO member state producer code

Tagged values:

{| style="background:#ccc99; color:black;" border="1" cellpadding="5" cellspacing="0"
!Tag name!!Value
|-
|codelistType||open dictionary
|-
|URI||http://iho.registry.site/AgencyCodes/MemberStates
|-
|encoding||other: [something]
|}

Expected Input:

(not applicable)

Definitions

(none)

Constraint:

values not in the dictionary must be of the form "other: XX" where XX is a combination of 2 letters different from any of the entries in the dictionary.

Reference:

(Permanent location of dictionary) http://iho.registry.site/s100_gi_registry/AgencyCodeRegisters/acr_home.php?register_type=4

Remarks:

Like closed dictionary but allows additional values of the form "other: ..."
==Misc==

[[user:briana|briana]] 17:33, 26 August 2016 (UTC) the S57 Caris link on the menu bar (referred to on the [[SNPWG]] page as "A source providing S57 the Feature Object Catalogue is listed at the menu bar for your convenience.") is broken!

--[[User:Jens|jens]] ([[User talk:Jens|talk]]) 14:34, 6 September 2016 (CEST) repaired

[[user:briana|briana]] 14:08, 12 December 2017 - two questions on the "deleted" items: 1) how/why were they selected in the first place? 2) how/why were they selected to be deleted? many appear to be of the Natural Conditions S-126 realm and I would like to understand why they were left out.