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 07/01/2014
Red text depicts changes made since 04/04/2013



Number
(In Section 4, octet 11)
Parameter Units
Abbrev
0
Wind Direction (from which blowing)
° true 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
39-191
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
in the lowest 400hPa
m s-1
MAXUVV
221
Hourly Maximum of Downward Vertical Velocity
in the lowest 400hPa
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
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, 1329-13333.
**** Statistical process 1 (Accumulation) does not change units.


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