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HOME > Monitoring_and_Data > Oceanic and Atmospheric Data > Reanalysis: Atmospheric Data > wgrib2-ncep_uv
 

wgrib2: -ncep_uv

Introduction

Operatinal NCEP grib files often have the U and corresponding V fields in the same grib message. (U and V are submessages.) Typically wgrib2 converts all the submessages into individual messages. In order to combine the U and V fields together, you replace the -grib option with -ncep_uv. Options like -grib_out and -new_grid do not have the capability to combine the U and V fields. For theses cases, you run the output through wgrib2.

Usage

-ncep_uv output_file

Example

$ wgrib2 test.grb2 -match ":500 mb:" -ncep_uv output.grb

$ wgrib2 test.grb2 -inv /dev/null -new_grid_winds earth -new_grid ncep grid 221 - | wgrib2 - -ncep_uv output.grb

See also: -tosubmsg -submsg -GRIB

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Page last modified: May 15, 2005
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