eccodes/examples/F90/bufr_expanded.f90

!
!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.
!
!
! FORTRAN 90 Implementation: bufr_expanded
!
! Description: how to read all the exapanded data values from BUFR messages.
!
!
program bufr_expanded
use eccodes
implicit none
integer            :: ifile
integer            :: iret
integer            :: ibufr
integer            :: i
integer            :: count=0
integer(kind=4)    :: numberOfValues 
real(kind=8), dimension(:), allocatable       :: values

  call codes_open_file(ifile,'../../data/bufr/syno_1.bufr','r')

! the first bufr message is loaded from file
! ibufr is the bufr id to be used in subsequent calls
  call codes_bufr_new_from_file(ifile,ibufr,iret)

  do while (iret/=CODES_END_OF_FILE)
    
    ! get and print some keys form the BUFR header 
    write(*,*) 'message: ',count

    ! we need to instruct ecCodes to expand all the descriptors 
    ! i.e. unpack the data values
    call codes_set(ibufr,"unpack",1);
    
    ! get the size of the values array
    call codes_get_size(ibufr,"numericValues",numberOfValues)
    
    print*, '  number of exapanded values:', numberOfValues
    
    ! allocate array for data values
    allocate(values(numberOfValues), stat=iret)
 
    ! get the exapanded data values
    call codes_get(ibufr,'numericValues',values)
 
    do i=1,numberOfValues
        write(*,*) '  ',i,values(i)
    enddo

    ! release the bufr message
    call codes_release(ibufr)

    ! load the next bufr message
    call codes_bufr_new_from_file(ifile,ibufr,iret)
    
    ! free array 
    deallocate(values)
        
    count=count+1
    
  end do  

! close file  
  call codes_close_file(ifile)
 

end program bufr_expanded