eccodes/examples/F90/get_data.f90

68 lines
1.6 KiB
Fortran

! Copyright 2005-2015 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 lat/lon/values.
!
!
!
program get_data
use eccodes
implicit none
integer :: ifile
integer :: iret,i
real(kind=8),dimension(:),allocatable :: lats,lons,values
integer(4) :: numberOfPoints
real(8) :: missingValue=9999
integer :: count1=0
character(len=256) :: filename
! Message identifier.
integer :: igrib
ifile=5
call codes_open_file(ifile, &
'../../data/reduced_latlon_surface.grib1','R')
! Loop on all the messages in a file.
call codes_new_from_file(ifile,igrib,iret)
do while (iret/=CODES_END_OF_FILE)
count1=count1+1
print *, "===== Message #",count1
call codes_get(igrib,'numberOfPoints',numberOfPoints)
call codes_set(igrib,'missingValue',missingValue)
allocate(lats(numberOfPoints))
allocate(lons(numberOfPoints))
allocate(values(numberOfPoints))
call codes_get_data(igrib,lats,lons,values)
do i=1,numberOfPoints
if (values(i) /= missingValue) then
print *, lats(i),lons(i),values(i)
end if
enddo
deallocate(lats)
deallocate(lons)
deallocate(values)
call codes_release(igrib)
call codes_new_from_file(ifile,igrib, iret)
end do
call codes_close_file(ifile)
end program