GRIB2 - CODE TABLE 4.238

Source or Sink

Revised 09/16/2025
Red text depicts changes made since 07/15/2024



Code Figure Meaning
0 Reserved
1 Aviation
2 Lightning
3 Biogenic Sources
4 Anthropogenic sources
5 Wild fires
6 Natural sources
7 Bio-fuel
8 Volcanoes
9 Fossil-fuel
10 Wetlands
11 Oceans
12 Elevated anthropogenic sources
13 Surface anthropogenic sources
14 Agriculture livestock
15 Agriculture soils
16 Agriculture waste burning
17 Agriculture (all)
18 Residential, commercial and other combustion
19 Power generation
20 Super power stations
21 Fugitives
22 Industrial process
23 Solvents
24 Ships
25 Wastes
26 Road transportation
27 Off-road transportation
28 Nuclear power plant
29 Nuclear weapon
30 Commercial Building Heating
31 Residential Heating
32 Oil Refineries and Transformation Industry
33 Gas Production
34 Vegetation
35 Biomass Burning
36 Settlements
37 Soil
38 Wild Animals
39 Savannah
40 Tropical Forest
41 Boreal Forest
42 Peatland
43 Deforestation
44-191 Reserved
192-254
Reserved for Local Use
255 Missing


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