S-126

Physical Environment
a place to discuss and follow the work

Knowledgeable WG members: Wilfred den Toom (NL)

Sample Test Data: File:Physical Environment Test Data Sample.docx

annex

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