| 1 | !**************************************************************************************** |
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| 2 | SUBROUTINE read_dimgrid (nlon,nlat,data_filename,w_unit,FILE_Debug) |
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| 3 | !************************************************************************************** |
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| 4 | USE netcdf |
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| 5 | IMPLICIT NONE |
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| 6 | |
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| 7 | INTEGER :: i,j,k,w_unit,FILE_Debug |
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| 8 | |
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| 9 | INTEGER :: il_file_id,il_grid_id,il_lon_id, & |
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| 10 | il_lat_id,il_indice_id, & |
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| 11 | lon_dims,lat_dims,imask_dims |
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| 12 | |
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| 13 | INTEGER, DIMENSION(NF90_MAX_VAR_DIMS) :: lon_dims_ids,lat_dims_ids,& |
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| 14 | imask_dims_ids,lon_dims_len,& |
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| 15 | lat_dims_len,imask_dims_len |
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| 16 | |
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| 17 | INTEGER, INTENT(out) :: nlon,nlat |
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| 18 | |
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| 19 | CHARACTER(len=*) :: data_filename |
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| 20 | |
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| 21 | ! Dimensions |
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| 22 | |
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| 23 | IF (FILE_Debug >= 2) THEN |
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| 24 | WRITE(w_unit,*) 'Reading input file ',data_filename |
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| 25 | CALL FLUSH(w_unit) |
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| 26 | ENDIF |
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| 27 | |
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| 28 | CALL hdlerr(NF90_OPEN(data_filename, NF90_NOWRITE, il_file_id), __LINE__ ) |
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| 29 | |
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| 30 | CALL hdlerr( NF90_INQ_VARID(il_file_id, 'lon' , il_lon_id), __LINE__ ) |
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| 31 | CALL hdlerr( NF90_INQ_VARID(il_file_id, 'lat' , il_lat_id), __LINE__ ) |
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| 32 | CALL hdlerr( NF90_INQ_VARID(il_file_id, 'imask', il_indice_id), __LINE__ ) |
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| 33 | |
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| 34 | CALL hdlerr( NF90_INQUIRE_VARIABLE(il_file_id, varid=il_lon_id, ndims=lon_dims, dimids=lon_dims_ids), __LINE__ ) |
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| 35 | |
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| 36 | ! The value lon_dims_len(i) is obtained thanks to the lon_dims_ids ID already obtained from the file |
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| 37 | DO i=1,lon_dims |
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| 38 | CALL hdlerr( NF90_INQUIRE_DIMENSION(ncid=il_file_id,dimid=lon_dims_ids(i),len=lon_dims_len(i)), __LINE__ ) |
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| 39 | ENDDO |
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| 40 | |
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| 41 | nlon=lon_dims_len(1) |
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| 42 | nlat=lon_dims_len(2) |
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| 43 | !++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 44 | |
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| 45 | CALL hdlerr( NF90_INQUIRE_VARIABLE(ncid=il_file_id, varid=il_lat_id, ndims=lat_dims, dimids=lat_dims_ids), __LINE__ ) |
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| 46 | |
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| 47 | ! The value lat_dims_len(i) is obtained thanks to the lat_dims_ids ID already obtained from the file |
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| 48 | DO i=1,lat_dims |
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| 49 | CALL hdlerr( NF90_INQUIRE_DIMENSION(ncid=il_file_id,dimid=lat_dims_ids(i),len=lat_dims_len(i)), __LINE__ ) |
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| 50 | ENDDO |
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| 51 | |
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| 52 | IF ( (lat_dims_len(1) .NE. lon_dims_len(1)).OR.(lat_dims_len(2) .NE. lon_dims_len(2)) ) THEN |
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| 53 | WRITE(w_unit,*) 'Problem in read_dimgrid' |
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| 54 | WRITE(w_unit,*) 'Dimensions of the latitude are not the same as the ones of the longitude' |
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| 55 | CALL flush(w_unit) |
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| 56 | STOP |
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| 57 | ENDIF |
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| 58 | !++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 59 | |
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| 60 | CALL hdlerr( NF90_INQUIRE_VARIABLE(ncid=il_file_id, varid=il_indice_id, ndims=imask_dims, dimids=imask_dims_ids), __LINE__ ) |
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| 61 | |
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| 62 | ! The value imask_dims_len(i) is obtained thanks to the imask_dims_ids ID already obtained from the file |
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| 63 | DO i=1,imask_dims |
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| 64 | CALL hdlerr( NF90_INQUIRE_DIMENSION(ncid=il_file_id,dimid=imask_dims_ids(i),len=imask_dims_len(i)), __LINE__ ) |
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| 65 | ENDDO |
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| 66 | |
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| 67 | CALL hdlerr(NF90_CLOSE(il_file_id), __LINE__ ) |
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| 68 | |
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| 69 | IF (FILE_Debug >= 2) THEN |
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| 70 | WRITE(w_unit,*) 'Done with input file ',data_filename |
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| 71 | WRITE(w_unit,*) 'Global dimensions nlon=',nlon,' nlat=',nlat |
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| 72 | CALL FLUSH(w_unit) |
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| 73 | ENDIF |
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| 74 | |
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| 75 | |
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| 76 | END SUBROUTINE read_dimgrid |
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