# Code table 4.1 - Parameter category by product discipline
0 0 Temperature 
1 1 Moisture 
2 2 Momentum 
3 3 Mass 
4 4 Short-wave radiation 
5 5 Long-wave radiation 
6 6 Cloud 
7 7 Thermodynamic stability indices 
8 8 Kinematic stability indices 
9 9 Temperature probabilities 
10 10 Moisture probabilities 
11 11 Momentum probabilities 
12 12 Mass probabilities 
13 13 Aerosols 
14 14 Trace gases (e.g. ozone, CO2) 
15 15 Radar 
16 16 Forecast radar imagery 
17 17 Electrodynamics 
18 18 Nuclear/radiology 
19 19 Physical atmospheric properties 
20 20 Atmospheric chemical constituents 
# 21-189 Reserved 
190 190 CCITT IA5 string 
191 191 Miscellaneous 
# 192-254 Reserved for local use 
255 255 Missing