mirror of https://github.com/ecmwf/eccodes.git
74 lines
2.2 KiB
Fortran
74 lines
2.2 KiB
Fortran
! (C) Copyright 2005- 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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!
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! Description: How to set keys for a grib2 file with
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! a Generalized Vertical Height Coordinate
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!
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!
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program set
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use eccodes
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implicit none
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integer :: infile, outfile
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integer :: igrib
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real(4) :: nlev_real4 = 12.21
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real(8) :: nlev_real8 = 12.21
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integer(4) :: PDTN_int = 11
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integer(8) :: PDTN_long = 11
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call codes_open_file(infile, '../../data/sample.grib2', 'r')
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call codes_open_file(outfile, 'out_gvc.grib2', 'w')
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call codes_grib_new_from_file(infile, igrib)
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! individual ensemble forecast
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call codes_set(igrib, 'productDefinitionTemplateNumber', PDTN_int)
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call codes_set(igrib, 'productDefinitionTemplateNumber', PDTN_long)
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! select level type as Generalized Vertical Height Coordinate
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call codes_set(igrib, 'typeOfLevel', 'generalVertical')
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! now set keys specific to this level type
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call codes_set(igrib, 'nlev', nlev_real4)
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call codes_set(igrib, 'nlev', nlev_real8)
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call codes_set(igrib, 'numberOfVGridUsed', 13.55)
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! check integrity of GRIB message
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call check_settings(igrib)
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! write modified message to a file
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call codes_write(igrib, outfile)
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call codes_release(igrib)
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call codes_close_file(infile)
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call codes_close_file(outfile)
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contains
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!======================================
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subroutine check_settings(gribid)
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implicit none
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integer, intent(in) :: gribid
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integer(kind=4) :: NV, typeOfFirstFixedSurface
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call codes_get(gribid, 'NV', NV)
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if (NV /= 6) then
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call codes_check(-2, 'NV_should_be_6', '')
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end if
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call codes_get(gribid, 'typeOfFirstFixedSurface', typeOfFirstFixedSurface)
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if (typeOfFirstFixedSurface /= 150) then
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call codes_check(-2, 'typeOfFirstFixedSurface_should_be_150', '')
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end if
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end subroutine check_settings
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end program set
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