mirror of https://github.com/ecmwf/eccodes.git
100 lines
2.7 KiB
Fortran
100 lines
2.7 KiB
Fortran
!
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!Copyright 2005-2018 ECMWF.
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!
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! This software is licensed under the terms of the Apache Licence Version 2.0
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!which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
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!
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! In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
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! virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
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!
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!
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! FORTRAN 90 Implementation: bufr_get_keys
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!
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! Description: how to read values of different type of keys from BUFR messages.
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!
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!
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program bufr_get_keys
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use eccodes
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implicit none
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integer :: ifile
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integer :: iret
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integer :: ibufr
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integer :: i, count=0
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integer(kind=4) :: blockNumber,stationNumber
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real(kind=8) :: t2m
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integer(kind=4), dimension(:), allocatable :: descriptors
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real(kind=8), dimension(:), allocatable :: values
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character(len=9) :: typicalDate
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call codes_open_file(ifile,'../../data/bufr/syno_multi.bufr','r')
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! The first bufr message is loaded from file,
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! ibufr is the bufr id to be used in subsequent calls
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call codes_bufr_new_from_file(ifile,ibufr,iret)
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do while (iret/=CODES_END_OF_FILE)
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! Get and print some keys form the BUFR header
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write(*,*) 'message: ',count
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! We need to instruct ecCodes to expand all the descriptors
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! i.e. unpack the data values
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call codes_set(ibufr,"unpack",1);
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! Get as character
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call codes_get(ibufr,'typicalDate',typicalDate)
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write(*,*) ' typicalDate:',typicalDate
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! Get as integer
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call codes_get(ibufr,'blockNumber',blockNumber);
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write(*,*) ' blockNumber:',blockNumber
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! Get as integer
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call codes_get(ibufr,'stationNumber',stationNumber);
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write(*,*) ' stationNumber:',stationNumber
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! get as real
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call codes_get(ibufr,'airTemperatureAt2M',t2m);
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write(*,*) ' airTemperatureAt2M:',t2m
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! ---- array of integer ----------------
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! get the expanded descriptors
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call codes_get(ibufr,'bufrdcExpandedDescriptors',descriptors)
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do i=1,size(descriptors)
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write(*,*) ' ',i,descriptors(i)
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enddo
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! ---- array of real ----------------
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! Get the expanded data values
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call codes_get(ibufr,'numericValues',values)
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do i=1,size(values)
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write(*,*) ' ',i,values(i)
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enddo
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! Get as character
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call codes_get(ibufr,'typicalDate',typicalDate)
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write(*,*) ' typicalDate:',typicalDate
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! Free arrays
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deallocate(values)
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deallocate(descriptors)
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! Release the bufr message
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call codes_release(ibufr)
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! Load the next bufr message
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call codes_bufr_new_from_file(ifile,ibufr,iret)
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count=count+1
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end do
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! Close file
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call codes_close_file(ifile)
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end program bufr_get_keys
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