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Table D1

Activity Areas (1)

Global Telecommunication System (GTS)
Explanation of Data Designators T1T2A1A2ii CCCC
TABLE D1 Level designator ii (when T1 = O)
Instructions for the proper application of the level designators

 

(1)  The designators specified in this table should be used to the greatest extent possible to indicate the levels below the ocean surface in the body of the GRIB bulletin for oceanographic products.

 

T1 Level Designator ii Depth (in meters)
O 98 Surface
O 96 2.5 m
O 94 5.0 m
O 92 7.5 m
O 90 12.5 m
O 88 17.5 m
O 86 25.0 m
O 84 32.5 m
O 82 40.0 m
O 80 50.0 m
O 78 62.5 m
O 76 75.0 m
O 74 100 m
O 72 125 m
O 70 150 m
O 68 200 m
O 66 300 m
O 64 400 m
O 62 500 m
O 60 600 m
O 58 700 m
O 56 800 m
O 54 900 m
O 52 1000 m
O 50 1100 m
O 48 1200 m
O 46 1300 m
O 44 1400 m
O 42 1500 m
O 40 1750 m
O 38 2000 m
O 36 2500 m
O 34 3000 m
O 32 4000 m
O 30 5000 m
O 01 Primary layer depth