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GRIB-API definition

Name
u_velocity
Wind speedAbbreviation
u
wsUnitm s-1paramId:10

 

UERRA details

Definition
Zonal (Eastward) wind with a vertical coordinate
Wind speed on a height level.
Validityinstantaneous
Comment 

 

WMO GRIB2 definition

Parameter
Discipline0meteorological products
Parameter
Category
category2momentum
Parameter
Number
number
2
1
u-component of
wind speed
Level
Type of first fixed surface
=
103specified height level above ground (m)
Scale factor of first fixed surface
=
0 
Scaled value of first fixed surface
=
value in m 
Type of second fixed surface
=
all bits to 1 missing
Scale factor of second fixed surface
=
all bits to 1missing
Scaled value of second fixed surface
=
all bits to 1missing