GRIB2 - TABLE 4.2-0-1

  PARAMETERS FOR DISCIPLINE 0
CATEGORY 1
(Meteorological products, moisture category)

Section 0 , Octet 7 = 0
 Section 4, Octet 10 = 1

Revised 03/12/2008
Red text depicts changes made since 10/30/2007


Number
(Section 4, octet 11)
Parameter Units
Abbrev
0
Specific Humidity
kg kg-1
SPF H
1
Relative Humidity
%
R H
2
Humidity Mixing Ratio
kg kg-1 MIXR
3
Precipitable Water
kg m-2 P WAT
4
Vapor Pressure
Pa
VAPP
5
Saturation Deficit
Pa
SAT D
6
Evaporation
kg m-2 EVP
7
Precipitation Rate
kg m-2 s-1 PRATE
8
Total Precipitation
kg m-2 A PCP
9
Large-Scale Precipitation (non-convective)
kg m-2 NCPCP
10
Convective Precipitation kg m-2 ACPCP
11
Snow Depth
m
SNO D
12
Snowfall Rate Water Equivalent
kg m-2 s-1 SRWEQ
13
Water Equivalent of Accumulated Snow Depth
kg m-2 WEASD
14
Convect Snow
kg m-2 SNO C
15
Large-Scale Snow
kg m-2 SNO L
16
Snow Melt
kg m-2 SNO M
17
Snow Age
day
SNOAG
18
Absolute Humidity
kg m-3 -
19
Precipitation Type
See Table 4.201
-
20
Integrated Liquid Water
kg m-2 -
21
Condensate
kg kg-1 TCOND
22
Cloud Mixing Ratio
kg kg-1 CLWMR
23
Ice Water Mixing Ratio kg kg-1 ICMR
24
Rain Mixing Ratio kg kg-1 RWMR
25
Snow Mixing Ratio kg kg-1 SNMR
26
Horizontal Moisture Convergence
kg kg-1 s-1 MCONV
27
Maximum Relative Humidity
%
MAXRH
28
Maximum Absolute Humidity
kg m-3 -
29
Total Snowfall
m
ASNOW
30
Precipitable Water Category
See Table 4.202 -
31
Hail
m
-
32
Grauple
kg kg-1 -
33
Categorical Rain Code table 4.222
CRAIN
34
Categorical Freezing Rain Code table 4.222
CFRZR
35
Categorical Ice Pellets Code table 4.222 CICEP
36
Categorical Snow Code table 4.222 CSNOW
37
Convective Precipitation Rate kg m-2 s-1 CPRAT
38
Horizontal Moisture Divergence kg kg-1 s-1 MCONV
39 Percent frozen precipitation % CPOFP
40
Potential Evaporation kg m-2 PEVAP
41
Potential Evaporation Rate W m-2 PEVPR
42
Snow Cover %
SNOWC
43
Rain Fraction of Total Liquid Water
Proportion FRAIN
44
Rime Factor Numeric RIME
45
Total Column Integrated Rain kg m-2 TCOLR
46
Total Column Integrated Snow kg m-2 TCOLS
47
Large Scale Water Precipitation (Non-Convective) kg m-2
48
Convective Water Precipitation kg m-2
49
Total Water Precipitation kg m-2
50
Total Snow Precipitation kg m-2
51
Total Column Water
(Vertically integrated total water (vapour+cloud water/ice)
kg m-2
52
Total Precipitation Rate kg m-2s-1
53
Total Snowfall Rate Water Equivalent kg m-2s-1
54
Large Scale Precipitation Rate kg m-2s-1
55
Convective Snowfall Rate Water Equivalent kg m-2s-1
56
Large Scale Snowfall Rate Water Equivalent kg m-2s-1
57
Total Snowfall Rate m s-1
58
Convective Snowfall Rate m s-1
59
Large Scale Snowfall Rate m s-1
60
Snow Depth Water Equivalent kg m-2
61
Snow Density kg m-3
62
Snow Evaporation kg m-2
63
Reserved

64
Total Column Integrated Water Vapour kg m-2
65
Rain Precipitation Rate kg m-2s-1
66
Snow Precipitation Rate kg m-2s-1
67
Freezing Rain Precipitation Rate kg m-2s-1
68
Ice Pellets Precipitation Rate kg m-2s-1
69-191
Reserved

192-254
Reserved for Local Use


192
Categorical Rain (yes=1; no=0) non-dim
CRAIN
193
Categorical Freezing Rain (yes=1; no=0) non-dim
CFRZR
194
Categorical Ice Pellets (yes=1; no=0) non-dim CICEP
195
Categorical Snow (yes=1; no=0) non-dim CSNOW
196
Convective Precipitation Rate kg m-2 s-1 CPRAT
197
Horizontal Moisture Divergence kg kg-1 s-1 MCONV
198
Minimum Relative Humidity % MINRH
199
Potential Evaporation kg m-2 PEVAP
200
Potential Evaporation Rate W m-2 PEVPR
201
Snow Cover %
SNOWC
202
Rain Fraction of Total Liquid Water
non-dim FRAIN
203
Rime Factor non-dim RIME
204
Total Column Integrated Rain kg m-2 TCOLR
205
Total Column Integrated Snow kg m-2 TCOLS
206
Total Icing Potential Diagnostic non-dim TIPD
207
Number concentration for ice particles non-dim NCIP
208
Snow temperature K
SNO T
209
Total column-integrated supercooled liquid water kg m-2 TCLSW
210
Total column-integrated melting ice kg m-2 TCOLM
211
Evaporation - Precipitation cm/day EMNP
212
Sublimation (evaporation from snow) W m-2 SBSNO
213
Deep Convective Moistening Rate kg kg-1 s-1 CNVMR
214
Shallow Convective Moistening Rate kg kg-1 s-1 SHAMR
215
Vertical Diffusion Moistening Rate kg kg-1 s-1 VDFMR
216
Condensation Pressure of Parcali
Lifted From Indicate Surface
Pa CONDP
217 Large scale moistening rate kg/kg/s LRGMR
218 Specific humidity at top of viscous sublayer kg/kg QZ0
219 Maximum specific humidity at 2m kg/kg QMAX
220 Minimum specific humidity at 2m kg/kg QMIN
255
Missing



Notes:

(1) Parameter deprecated - See Regulation 92.6.2 and use another parameter instead.
(2) Total precipitation/snowfall rate stands for the sum of convective and large-scale precipitation/snowfall rate.


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