GRIB2 - TABLE 4.2-20-0

PARAMETERS FOR DISCIPLINE 20
CATEGORY 0

(Health and Socioeconomic Impacts, Health Indicators category)

In Section 0, Octet 7 = 20
In Section 4, Octet 10 = 0

Revised 09/15/2025
Red text depicts changes made since 09/15/2025


Number
(In Section 4, octet 11)
 Parameter Units
 Abbrev
0 Universal Thermal Climate Index K UTHCIDX
1 Mean Radiant Temperature K MEANRTMP
2 Wet-Bulb Globe Temperature (see Note 1) K WETBGTMP
3 Globe Temperature K GLOBETMP
4 Humidex K HUMIDX
5 Effective Temperature K EFFTEMP
6 Normal Effective Temperature K NOREFTMP
7 Standard Effective Temperature K STDEFTMP
8 Physiological Equivalent Temperature K PEQUTMP
9 UV Biologically Effective Dose W m-2 UVBED
10 UV Biologically Effective Dose, Clear-Sky W m-2 UVBEDCS
11 Excess Heat Factor K2 EHF
12 Excess Cold Factor K2 ECF
13-191
 Reserved

192-254
 Reserved for Local Use

255
 Missing



Notes:

(1)  Higher values indicate that heat stress is important. Interpretation of values can vary among organizations and use. See example in the ISO certification (ISO 7243, 1989; 2017; Parsons, 2013).


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