CATNTC

FEATURE OBJECT ATTRIBUTES

Attribute: category of natural conditions

Acronym: catntc Code : ?

Camel case: categoryOfNaturalConditions

Attribute type: E

Expected input:

ID Meaning INT 1 M-4

1 wind

2 visibility

3 swell

4 current *

5 sea level

6 tide 7 tidal stream *

8 magnetic observation *

9 ice information *

10 weather risk

11 seabed (in respect to UKHO SDs)

12 sea water characteristics

Definitions: wind:

the earth's air or the gas surrounding a planet in natural motion horizontally (www.merriam-webster.com)

visibility:

The greatest distance under given weather conditions to which it is possible to see without instrumental assistance. (www.answers.com)

swell:

A formation of long wavelength ocean surface waves on the sea. Swells are far more stable in their directions and frequency than normal oceanic waves since they are formed by tropical storms and by stable wind systems. (www.answers.com)

current:

A current, in a river or stream, is the flow of water influenced by gravity as the water moves downhill to reduce its potential energy. The current varies spatially as well as temporally within the stream, dependent upon the flow volume of water, stream gradient, and channel geometrics. In tidal zones, the current in rivers and streams may reverse on the flood tide before resuming on the ebb tide. (www.answers.com)

sea level:

tide:

tidal stream*:

magnetic observation*:

ice information*:

weather risk:

seabed (in respect to UKHO SDs):

sea water characteristics:

Remarks:

No remarks.

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David	Ricardo	Rolando	Jens
DA Y/N	RF Y/N	RR Y/N	JSF Y/N