GRIB2 - TABLE 4.2-0-20

PARAMETERS FOR DISCIPLINE 0
CATEGORY 20

(Meteorological products, Atmospheric Chemical Constituents category)

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

Revised 04/08/2013
Red text depicts changes made since 03/15/2012



Number
(In Section 4, octet 11)
Parameter Units
Abbrev
0 Mass Density (Concentration) kg m-3 MASSDEN
1 Column-Integrated Mass Density (See Note 1) kg m-2 COLMD
2 Mass Mixing Ratio (Mass Fraction in Air) kg kg-1 MASSMR
3 Atmosphere Emission Mass Flux kg m-2s-1 AEMFLX
4 Atmosphere Net Production Mass Flux kg m-2s-1 ANPMFLX
5 Atmosphere Net Production And Emision Mass Flux
kg m-2s-1 ANPEMFLX
6 Surface Dry Deposition Mass Flux kg m-2s-1 SDDMFLX
7 Surface Wet Deposition Mass Flux kg m-2s-1 SWDMFLX
8 Atmosphere Re-Emission Mass Flux kg m-2s-1 AREMFLX
9 Wet Deposition by Large-Scale Precipitation Mass Flux kg m-2s-1 WLSMFLX
10 Wet Deposition by Convective Precipitation Mass Flux kg m-2s-1 WDCPMFLX
11 Sedimentation Mass Flux kg m-2s-1 SEDMFLX
12 Dry Deposition Mass Flux kg m-2s-1 DDMFLX
13 Transfer From Hydrophobic to Hydrophilic
kg kg-1s-1 TRANHH
14 Transfer From SO2 (Sulphur Dioxide) to SO4 (Sulphate) kg kg-1s-1 TRSDS
15-49
Reserved

50 Amount in Atmosphere mol AIA
51 Concentration In Air mol m-3 CONAIR
52 Volume Mixing Ratio (Fraction in Air) mol mol-1 VMXR
53 Chemical Gross Production Rate of Concentration mol m-3s-1 CGPRC
54 Chemical Gross Destruction Rate of Concentration mol m-3s-1 CGDRC
55 Surface Flux mol m-2s-1 SFLUX
56 Changes Of Amount in Atmosphere (See Note 1) mol s-1 COAIA
57 Total Yearly Average Burden of The Atmosphere> mol TYABA
58 Total Yearly Average Atmospheric Loss (See Note 1) mol s-1 TYAAL
59 Aerosol Number Concentration
m-3 ANCON
60 - 99
Reserved

100 Surface Area Density (Aerosol) m-1 SADEN
101 Vertical Visual Range m ATMTK
102 Aerosol Optical Thickness Numeric AOTK
103 Single Scattering Albedo Numeric SSALBK
104 Asymmetry Factor
Numeric ASYSFK
105 Aerosol Extinction Coefficient
m-1 AECOEF
106 Aerosol Absorption Coefficient
m-1 AACOEF
107 Aerosol Lidar Backscatter from Satellite
m-1sr-1 ALBSAT
108 Aerosol Lidar Backscatter from the Ground m-1sr-1 ALBGRD
109 Aerosol Lidar Extinction from Satellite m-1 ALESAT
110 Aerosol Lidar Extinction from the Ground
m-1 ALEGRD
111 - 191
Reserved

192-254
Reserved for Local Use


255
Missing



Notes:

(1) First fixed surface and Second fixed surface of Code Table 4.5 (Fixed surface types and units) to define the vertical extent, i.e. First Fixed Surface can be set to 1 (Ground or Water surface) and second Fixed Surface set to 7 (Tropopause) for a restriction to the troposphere.



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