GRIB2 - TABLE 4.2-0-2

PARAMETERS FOR DISCIPLINE 0
CATEGORY 2

(Meteorological products, Momentum category)

In Section 0, Octet 7 = 0
In Section 4, Octet 10 = 2

Revised 06/23/2022
Red text depicts changes made since 01/25/2021


Number
(In Section 4, octet 11)
 Parameter Units
 Abbrev
0
 Wind Direction (from which blowing)
 ° WDIR
1
 Wind Speed
 m s-1
 WIND
2
 U-Component of Wind
 m s-1 UGRD
3
 V-Component of Wind m s-1 VGRD
4
 Stream Function
 m2 s-1 STRM
5
 Velocity Potential
 m2 s-1 VPOT
6
 Montgomery Stream Function m2 s-2 MNTSF
7
 Sigma Coordinate Vertical Velocity
 s-1 SGCVV
8
 Vertical Velocity (Pressure)
 Pa s-1 VVEL
9
 Vertical Velocity (Geometric) m s-1 DZDT
10
 Absolute Vorticity
 s-1 ABSV
11
 Absolute Divergence
 s-1 ABSD
12
 Relative Vorticity
 s-1 RELV
13
 Relative Divergence
 s-1 RELD
14
 Potential Vorticity
 K m2 kg-1 s-1 PVORT
15
 Vertical U-Component Shear
 s-1 VUCSH
16
 Vertical V-Component Shear
 s-1 VVCSH
17
 Momentum Flux, U-Component N m-2 UFLX
18
 Momentum Flux, V-Component N m-2 VFLX
19
 Wind Mixing Energy
 J
 WMIXE
20
 Boundary Layer Dissipation
 W m-2 BLYDP
21
 Maximum Wind Speed * m s-1 MAXGUST
22
 Wind Speed (Gust)
 m s-1 GUST
23
 U-Component of Wind (Gust) m s-1 UGUST
24
 V-Component of Wind (Gust) m s-1 VGUST
25
 Vertical Speed Shear s-1 VWSH
26
 Horizontal Momentum Flux N m-2 MFLX
27
 U-Component Storm Motion m s-1 USTM
28
 V-Component Storm Motion m s-1 VSTM
29
 Drag Coefficient Numeric CD
30
 Frictional Velocity m s-1 FRICV
31
 Turbulent Diffusion Coefficient for Momentum m2 s-1 TDCMOM
32
 Eta Coordinate Vertical Velocity s-1 ETACVV
33
 Wind Fetch m WINDF
34
 Normal Wind Component ** m s-1 NWIND
35
 Tangential Wind Component ** m s-1 TWIND
36
 Amplitude Function for Rossby Wave Envelope for Meridional Wind *** m s-1 AFRWE
37
 Northward Turbulent Surface Stress **** N m-2 s NTSS
38
 Eastward Turbulent Surface Stress **** N m-2 s ETSS
39 Eastward Wind Tendency Due to Parameterizations m s-2 EWTPARM
40 Northward Wind Tendency Due to Parameterizations m s-2 NWTPARM
41 U-Component of Geostrophic Wind m s-1 UGWIND
42 V-Component of Geostrophic Wind m s-1 VGWIND
43 Geostrophic Wind Direction ° GEOWD
44 Geostrophic Wind Speed m s-1 GEOWS
45 Unbalanced Component of Divergence s-1 UNDIV
46 Vorticity Advection s-2 VORTADV
47 Surface roughness for heat,(see Note 5) m SFRHEAT
48 Surface roughness for moisture,(see Note 6) m SFRMOIST
49-191
 Reserved

192-254
 Reserved for Local Use

192
 Vertical Speed Shear s-1 VWSH
193
 Horizontal Momentum Flux N m-2 MFLX
194
 U-Component Storm Motion m s-1 USTM
195
 V-Component Storm Motion m s-1 VSTM
196
 Drag Coefficient non-dim CD
197
 Frictional Velocity m s-1 FRICV
198
 Latitude of U Wind Component of Velocity deg LAUV
199
 Longitude of U Wind Component of Velocity deg LOUV
200
 Latitude of V Wind Component of Velocity deg LAVV
201
 Longitude of V Wind Component of Velocity deg LOVV
202
 Latitude of Presure Point deg LAPP
203
 Longitude of Presure Point deg LOPP
204
 Vertical Eddy Diffusivity Heat exchange m2 s-1 VEDH
205
 Covariance between Meridional and Zonal
Components of the wind.		 m2 s-2 COVMZ
206
 Covariance between Temperature and Zonal
Components of the wind.		 K*m s-1 COVTZ
207
 Covariance between Temperature and Meridional
Components of the wind.		 K*m s-1 COVTM
208
 Vertical Diffusion Zonal Acceleration
 m s-2 VDFUA
209
 Vertical Diffusion Meridional Acceleration
 m s-2 VDFVA
210
 Gravity wave drag zonal acceleration
 m s-2
 GWDU
211
 Gravity wave drag meridional acceleration
 m s-2
 GWDV
212
 Convective zonal momentum mixing acceleration
 m s-2
 CNVU
213
 Convective meridional momentum mixing acceleration
 m s-2
 CNVV
214
 Tendency of vertical velocity m s-2
 WTEND
215
 Omega (Dp/Dt) divide by density K
 OMGALF
216
 Convective Gravity wave drag zonal acceleration
 m s-2
 CNGWDU
217
 Convective Gravity wave drag meridional acceleration
 m s-2
 CNGWDV
218
 Velocity Point Model Surface
LMV
219
 Potential Vorticity (Mass-Weighted) 1/s/m PVMWW
220
 Hourly Maximum of Upward Vertical Velocity m s-1
 MAXUVV
221
 Hourly Maximum of Downward Vertical Velocity m s-1
 MAXDVV
222
 U Component of Hourly Maximum 10m Wind Speed m s-1
 MAXUW
223
 V Component of Hourly Maximum 10m Wind Speed m s-1
 MAXVW
224
 Ventilation Rate m2 s-1
 VRATE
225 Transport Wind Speed m s-1 TRWSPD
226 Transport Wind Direction Deg TRWDIR
227 Earliest Reasonable Arrival Time (10% exceedance) s TOA10
228 Most Likely Arrival Time (50% exceedance) s TOA50
229 Most Likely Departure Time (50% exceedance) s TOD50
230 Latest Reasonable Departure Time (90% exceedance) s TOD90
231 Tropical Wind Direction ° TPWDIR
232 Tropical Wind Speed m s-1 TPWSPD
233 Inflow Based (ESFC) to 50% EL Shear Magnitude kt ESHR
234 U Component Inflow Based to 50% EL Shear Vector kt UESH
235 V Component Inflow Based to 50% EL Shear Vector kt VESH
236 U Component Bunkers Effective Right Motion kt UEID
237 V Component Bunkers Effective Right Motion kt VEID
255
 Missing



Notes:

*       Parameter deprecated - See Regulation 92.6.2 and use another parameter instead.
**     In relation to local coordinate axes at a cell edge.
***   This parameter is described in more detail by
       (a) Lee, S., and I.M. Held, 1993: Baroclinic wave packets in models and
        observations. J Atmos. Sci., 50, 1413-1428.
        (b) Change, E.K.M., 1993: Downstream development of baroclinic waves
        as inferred from regression analysis. J. Atmos. Sci., 50, 2038-2053.
        (c) Archambault, H.M., D. Keyser, and L.F. Bosart, 2010: Relationships
        between large-scale regime transitions and majpr cool-season precipitation
        events in the northeastern United States. Mon Wea. Rev., 138, 3454-3473
        (d) Zimin, A.V., I. Szunyogh, B.R. Hung, and E. Orr, 2006: Extracting envelopes
        of nonzonally propogating Rossby waves packets. Mon. Wea. Review, 134, 1329-1333.
**** Statistical process 1 (Accumulation) does not change units.


Back