wgrib2: -ieee
Introduction
The -ieee option writes the grid values to a specified
file in IEEE format (C: float, Fortran: real). The default endian is "big",
but that can be changed by the
-big_endian and
-little_endian options.
By default, the data are written out in
WE:SN order (see -order option) with f77 header/trailer (see -no_header option). The
undefined value is 9.999e20. The output format is unchanged from wgrib except
the order can now be specified.
The default is to write a 4 byte header and trailer with the record size in bytes.
No header and trailer are written if the header flag is off by
the -no_header option.
The default is write the grid point data in WE:SN order. The ordering of the data
can be changed to raw or WE:NS by the -order option.
The default endian of the header, trailer and data are in big endian order. This can
be changed to little endian by the -little_endian option.
The -ieee option is slower than the -bin option and may not be exact on an ieee
machine because all grid point data is converted from the native format into ieee format
by a software routine.
Usage
-ieee file_name
Example
$ wgrib2 test.grb2 -s | grep ":RH:2 m" | wgrib2 -i test.grb2 -ieee data.bin
285:36796469:d=2005090200:RH:2 m above ground:60 hour fcst
The above line extracts the 2 meter RH from file test.grb2 and writes it in data.bin
wgrib ==> wgrib2
-header -ieee -o out.bin -header -order raw -ieee out.bin
-ieee -o out.bin -order raw -ieee out.bin
See also: -text,
-netcdf
-spread
-bin
-big_endian
-little_endian
|