mirror of https://github.com/ecmwf/eccodes.git
45 lines
1.4 KiB
Fortran
45 lines
1.4 KiB
Fortran
! (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(kind=4), 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 message 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
|