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! (C) Copyright 2005- ECMWF.
!
! This software is licensed under the terms of the Apache Licence Version 2.0
! which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
!
! In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
! virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
!
!
! Description: how to get PV values.
!
!
program grib_get_pv
use eccodes
implicit none
integer :: infile
integer :: igrib
integer :: PVPresent, nb_pv
real, dimension(:), allocatable :: pv
call codes_open_file(infile, &
'../../data/reduced_gaussian_model_level.grib1','r')
! A new grib message is loaded from file
! igrib is the grib id to be used in subsequent calls
call codes_grib_new_from_file(infile,igrib)
! Get PVPresent to see if the 'pv' array is there
call codes_get(igrib,'PVPresent',PVPresent)
print*, "PVPresent = ", PVPresent
if (PVPresent == 1) then
call codes_get_size(igrib,'pv',nb_pv)
print*, "There are ", nb_pv, " PV values"
allocate(pv(nb_pv))
call codes_get(igrib,'pv',pv)
print*, "pv = ", pv
deallocate(pv)
else
print*, "There is no PV values in your GRIB message!"
end if
call codes_release(igrib)
call codes_close_file(infile)
end program grib_get_pv
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