-submsg_uv¶
Introduction¶
The option -submsg_uv is like the option -ncep_uv. The latter option puts UGRD and VGRD into the same grib message. The former combines all the vector fields into their own grib message. The option -submsg_uv may be important for parallel processing. For example, you want to regrid from a Gaussian grid to a polar stereographic grid that covers the North Pole. For scalar fields, the grid can be regridded independently which allows a possibility of parallel processing. Vector fields have to processed together (U and V). One approach is to put the vector fields into their own grib message (combine the corresponding U/V fields). Then all the grib messages can be regridded independently.
The vector fields are the same as used by the -new_grid option. The vector list can be changed using the -new_grid_vectors option.
Usage¶
Example¶
See also: -tosubmsg -submsg -submsg_uv -ncep_uv -new_grid_vectors
Description: out X combine vector fields into one message
Docs derived from https://www.cpc.ncep.noaa.gov/products/wesley/wgrib2/submsg_uv.html