grib_api: set_missing.f90

00001 ! Copyright 2005-2007 ECMWF
00002 ! 
00003 ! Licensed under the GNU Lesser General Public License which
00004 ! incorporates the terms and conditions of version 3 of the GNU
00005 ! General Public License.
00006 ! See LICENSE and gpl-3.0.txt for details.
00007 !
00008 !
00009 !  Description: how to set missing a key value.
00010 !
00011 !
00012 !  Author: Enrico Fucile
00013 !
00014 !
00015 !
00016 program set
00017   use grib_api
00018   implicit none
00019   integer              :: infile,outfile
00020   integer              :: igrib
00021 
00022   infile=5
00023   outfile=6
00024 
00025   call grib_open_file(infile, &
00026        '../../data/reduced_gaussian_pressure_level.grib2','r')
00027 
00028   call grib_open_file(outfile, &
00029        'out_surface_level.grib2','w')
00030 
00031   !     a new grib message is loaded from file
00032   !     igrib is the grib id to be used in subsequent calls
00033   call grib_new_from_file(infile,igrib)
00034 
00035   call grib_set(igrib,'typeOfFirstFixedSurface','sfc')
00036   call grib_set_missing(igrib,'scaleFactorOfFirstFixedSurface')
00037   call grib_set_missing(igrib,'scaledValueOfFirstFixedSurface')
00038 
00039   call grib_write(igrib,outfile)
00040 
00041   call grib_release(igrib)
00042 
00043   call grib_close_file(infile)
00044 
00045   call grib_close_file(outfile)
00046 
00047 end program set