| 1 | MODULE iom_nf90 |
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| 2 | !!===================================================================== |
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| 3 | !! *** MODULE iom_nf90 *** |
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| 4 | !! Input/Output manager : Library to read input files with NF90 (only fliocom module) |
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| 5 | !!==================================================================== |
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| 6 | !! History : 9.0 ! 05 12 (J. Belier) Original code |
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| 7 | !! 9.0 ! 06 02 (S. Masson) Adaptation to NEMO |
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| 8 | !! " ! 07 07 (D. Storkey) Changes to iom_nf90_gettime |
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| 9 | !! 3.6 ! 2015-15 (J. Harle) Added procedure to read REAL attributes |
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| 10 | !!-------------------------------------------------------------------- |
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| 11 | !!gm caution add !DIR nec: improved performance to be checked as well as no result changes |
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| 12 | |
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| 13 | !!-------------------------------------------------------------------- |
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| 14 | !! iom_open : open a file read only |
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| 15 | !! iom_close : close a file or all files opened by iom |
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| 16 | !! iom_get : read a field (interfaced to several routines) |
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| 17 | !! iom_gettime : read the time axis kvid in the file |
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| 18 | !! iom_varid : get the id of a variable in a file |
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| 19 | !! iom_rstput : write a field in a restart file (interfaced to several routines) |
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| 20 | !!-------------------------------------------------------------------- |
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| 21 | USE dom_oce ! ocean space and time domain |
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| 22 | USE lbclnk ! lateal boundary condition / mpp exchanges |
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| 23 | USE iom_def ! iom variables definitions |
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| 24 | USE netcdf ! NetCDF library |
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| 25 | USE in_out_manager ! I/O manager |
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| 26 | USE lib_mpp ! MPP library |
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| 27 | |
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| 28 | IMPLICIT NONE |
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| 29 | PRIVATE |
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| 30 | |
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| 31 | PUBLIC iom_nf90_open, iom_nf90_close, iom_nf90_varid, iom_nf90_get, iom_nf90_gettime, iom_nf90_rstput |
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| 32 | PUBLIC iom_nf90_getatt |
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| 33 | |
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| 34 | INTERFACE iom_nf90_get |
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| 35 | MODULE PROCEDURE iom_nf90_g0d, iom_nf90_g123d |
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| 36 | END INTERFACE |
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| 37 | INTERFACE iom_nf90_getatt |
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| 38 | MODULE PROCEDURE iom_nf90_att |
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| 39 | END INTERFACE |
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| 40 | INTERFACE iom_nf90_rstput |
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| 41 | MODULE PROCEDURE iom_nf90_rp0123d |
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| 42 | END INTERFACE |
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| 43 | |
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| 44 | !!---------------------------------------------------------------------- |
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| 45 | !! NEMO/OPA 3.3 , NEMO Consortium (2010) |
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| 46 | !! $Id$ |
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| 47 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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| 48 | !!---------------------------------------------------------------------- |
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| 49 | |
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| 50 | CONTAINS |
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| 51 | |
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| 52 | SUBROUTINE iom_nf90_open( cdname, kiomid, ldwrt, ldok, kdompar ) |
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| 53 | !!--------------------------------------------------------------------- |
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| 54 | !! *** SUBROUTINE iom_open *** |
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| 55 | !! |
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| 56 | !! ** Purpose : open an input file with NF90 |
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| 57 | !!--------------------------------------------------------------------- |
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| 58 | CHARACTER(len=*) , INTENT(inout) :: cdname ! File name |
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| 59 | INTEGER , INTENT( out) :: kiomid ! nf90 identifier of the opened file |
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| 60 | LOGICAL , INTENT(in ) :: ldwrt ! read or write the file? |
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| 61 | LOGICAL , INTENT(in ) :: ldok ! check the existence |
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| 62 | INTEGER, DIMENSION(2,5), INTENT(in ), OPTIONAL :: kdompar ! domain parameters: |
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| 63 | |
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| 64 | CHARACTER(LEN=256) :: clinfo ! info character |
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| 65 | CHARACTER(LEN=256) :: cltmp ! temporary character |
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| 66 | INTEGER :: iln ! lengths of character |
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| 67 | INTEGER :: istop ! temporary storage of nstop |
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| 68 | INTEGER :: if90id ! nf90 identifier of the opened file |
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| 69 | INTEGER :: idmy ! dummy variable |
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| 70 | INTEGER :: jl ! loop variable |
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| 71 | INTEGER :: ichunk ! temporary storage of nn_chunksz |
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| 72 | INTEGER :: imode ! creation mode flag: NF90_CLOBBER or NF90_NOCLOBBER or NF90_HDF5 |
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| 73 | INTEGER :: ihdf5 ! local variable for retrieval of value for NF90_HDF5 |
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| 74 | LOGICAL :: llclobber ! local definition of ln_clobber |
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| 75 | !--------------------------------------------------------------------- |
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| 76 | |
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| 77 | clinfo = ' iom_nf90_open ~~~ ' |
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| 78 | istop = nstop ! store the actual value of nstop |
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| 79 | IF( nn_chunksz > 0 ) THEN ; ichunk = nn_chunksz |
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| 80 | ELSE ; ichunk = NF90_SIZEHINT_DEFAULT |
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| 81 | ENDIF |
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| 82 | ! |
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| 83 | llclobber = ldwrt .AND. ln_clobber |
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| 84 | IF( ldok .AND. .NOT. llclobber ) THEN ! Open existing file... |
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| 85 | ! ! ============= |
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| 86 | IF( ldwrt ) THEN ! ... in write mode |
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| 87 | IF(lwp) WRITE(numout,*) TRIM(clinfo)//' open existing file: '//TRIM(cdname)//' in WRITE mode' |
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| 88 | IF( snc4set%luse ) THEN |
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| 89 | CALL iom_nf90_check(NF90_OPEN( TRIM(cdname), NF90_WRITE , if90id ), clinfo) |
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| 90 | ELSE |
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| 91 | CALL iom_nf90_check(NF90_OPEN( TRIM(cdname), NF90_WRITE , if90id, chunksize = ichunk ), clinfo) |
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| 92 | ENDIF |
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| 93 | CALL iom_nf90_check(NF90_SET_FILL( if90id, NF90_NOFILL, idmy ), clinfo) |
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| 94 | ELSE ! ... in read mode |
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| 95 | IF(lwp) WRITE(numout,*) TRIM(clinfo)//' open existing file: '//TRIM(cdname)//' in READ mode' |
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| 96 | CALL iom_nf90_check(NF90_OPEN( TRIM(cdname), NF90_NOWRITE, if90id, chunksize = ichunk ), clinfo) |
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| 97 | ENDIF |
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| 98 | ELSE ! the file does not exist (or we overwrite it) |
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| 99 | ! ! ============= |
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| 100 | iln = INDEX( cdname, '.nc' ) |
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| 101 | IF( ldwrt ) THEN ! the file should be open in write mode so we create it... |
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| 102 | IF( jpnij > 1 ) THEN |
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| 103 | WRITE(cltmp,'(a,a,i4.4,a)') cdname(1:iln-1), '_', narea-1, '.nc' |
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| 104 | cdname = TRIM(cltmp) |
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| 105 | ENDIF |
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| 106 | IF(lwp) WRITE(numout,*) TRIM(clinfo)//' create new file: '//TRIM(cdname)//' in WRITE mode' |
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| 107 | |
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| 108 | IF( llclobber ) THEN ; imode = IOR( NF90_64BIT_OFFSET, NF90_CLOBBER ) |
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| 109 | ELSE ; imode = IOR( NF90_64BIT_OFFSET, NF90_NOCLOBBER ) |
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| 110 | ENDIF |
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| 111 | IF( snc4set%luse ) THEN |
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| 112 | IF(lwp) WRITE(numout,*) TRIM(clinfo)//' creating file: '//TRIM(cdname)//' in hdf5 (netcdf4) mode' |
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| 113 | CALL GET_NF90_SYMBOL("NF90_HDF5", ihdf5) |
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| 114 | IF( llclobber ) THEN ; imode = IOR(ihdf5, NF90_CLOBBER) |
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| 115 | ELSE ; imode = IOR(ihdf5, NF90_NOCLOBBER) |
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| 116 | ENDIF |
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| 117 | CALL iom_nf90_check(NF90_CREATE( TRIM(cdname), imode, if90id ), clinfo) |
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| 118 | ELSE |
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| 119 | CALL iom_nf90_check(NF90_CREATE( TRIM(cdname), imode, if90id, chunksize = ichunk ), clinfo) |
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| 120 | ENDIF |
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| 121 | CALL iom_nf90_check(NF90_SET_FILL( if90id, NF90_NOFILL, idmy ), clinfo) |
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| 122 | ! define dimensions |
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| 123 | CALL iom_nf90_check(NF90_DEF_DIM( if90id, 'x', kdompar(1,1) , idmy ), clinfo) |
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| 124 | CALL iom_nf90_check(NF90_DEF_DIM( if90id, 'y', kdompar(2,1) , idmy ), clinfo) |
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| 125 | CALL iom_nf90_check(NF90_DEF_DIM( if90id, 'z', jpk , idmy ), clinfo) |
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| 126 | CALL iom_nf90_check(NF90_DEF_DIM( if90id, 't', NF90_UNLIMITED, idmy ), clinfo) |
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| 127 | ! global attributes |
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| 128 | CALL iom_nf90_check(NF90_PUT_ATT( if90id, NF90_GLOBAL, 'DOMAIN_number_total' , jpnij ), clinfo) |
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| 129 | CALL iom_nf90_check(NF90_PUT_ATT( if90id, NF90_GLOBAL, 'DOMAIN_number' , narea-1 ), clinfo) |
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| 130 | CALL iom_nf90_check(NF90_PUT_ATT( if90id, NF90_GLOBAL, 'DOMAIN_dimensions_ids' , (/1 , 2 /) ), clinfo) |
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| 131 | CALL iom_nf90_check(NF90_PUT_ATT( if90id, NF90_GLOBAL, 'DOMAIN_size_global' , (/jpiglo, jpjglo/) ), clinfo) |
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| 132 | CALL iom_nf90_check(NF90_PUT_ATT( if90id, NF90_GLOBAL, 'DOMAIN_size_local' , kdompar(:,1) ), clinfo) |
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| 133 | CALL iom_nf90_check(NF90_PUT_ATT( if90id, NF90_GLOBAL, 'DOMAIN_position_first' , kdompar(:,2) ), clinfo) |
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| 134 | CALL iom_nf90_check(NF90_PUT_ATT( if90id, NF90_GLOBAL, 'DOMAIN_position_last' , kdompar(:,3) ), clinfo) |
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| 135 | CALL iom_nf90_check(NF90_PUT_ATT( if90id, NF90_GLOBAL, 'DOMAIN_halo_size_start', kdompar(:,4) ), clinfo) |
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| 136 | CALL iom_nf90_check(NF90_PUT_ATT( if90id, NF90_GLOBAL, 'DOMAIN_halo_size_end' , kdompar(:,5) ), clinfo) |
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| 137 | CALL iom_nf90_check(NF90_PUT_ATT( if90id, NF90_GLOBAL, 'DOMAIN_type' , 'BOX' ), clinfo) |
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| 138 | ELSE ! the file should be open for read mode so it must exist... |
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| 139 | CALL ctl_stop( TRIM(clinfo), ' should be impossible case...' ) |
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| 140 | ENDIF |
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| 141 | ENDIF |
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| 142 | ! start to fill file informations |
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| 143 | ! ============= |
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| 144 | IF( istop == nstop ) THEN ! no error within this routine |
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| 145 | !does not work with some compilers kiomid = MINLOC(iom_file(:)%nfid, dim = 1) |
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| 146 | kiomid = 0 |
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| 147 | DO jl = jpmax_files, 1, -1 |
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| 148 | IF( iom_file(jl)%nfid == 0 ) kiomid = jl |
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| 149 | ENDDO |
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| 150 | iom_file(kiomid)%name = TRIM(cdname) |
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| 151 | iom_file(kiomid)%nfid = if90id |
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| 152 | iom_file(kiomid)%iolib = jpnf90 |
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| 153 | iom_file(kiomid)%nvars = 0 |
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| 154 | iom_file(kiomid)%irec = -1 ! useless for NetCDF files, used to know if the file is in define mode |
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| 155 | CALL iom_nf90_check(NF90_Inquire(if90id, unlimitedDimId = iom_file(kiomid)%iduld), clinfo) |
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| 156 | IF ( iom_file(kiomid)%iduld .GE. 0 ) THEN |
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| 157 | CALL iom_nf90_check(NF90_Inquire_Dimension(if90id, iom_file(kiomid)%iduld, & |
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| 158 | & name = iom_file(kiomid)%uldname, & |
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| 159 | & len = iom_file(kiomid)%lenuld ), clinfo ) |
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| 160 | ENDIF |
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| 161 | IF(lwp) WRITE(numout,*) ' ---> '//TRIM(cdname)//' OK' |
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| 162 | ELSE |
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| 163 | kiomid = 0 ! return error flag |
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| 164 | ENDIF |
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| 165 | ! |
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| 166 | END SUBROUTINE iom_nf90_open |
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| 167 | |
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| 168 | |
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| 169 | SUBROUTINE iom_nf90_close( kiomid ) |
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| 170 | !!-------------------------------------------------------------------- |
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| 171 | !! *** SUBROUTINE iom_nf90_close *** |
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| 172 | !! |
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| 173 | !! ** Purpose : close an input file with NF90 |
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| 174 | !!-------------------------------------------------------------------- |
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| 175 | INTEGER, INTENT(in) :: kiomid ! iom identifier of the file to be closed |
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| 176 | CHARACTER(LEN=100) :: clinfo ! info character |
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| 177 | !--------------------------------------------------------------------- |
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| 178 | ! |
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| 179 | clinfo = ' iom_nf90_close , file: '//TRIM(iom_file(kiomid)%name) |
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| 180 | CALL iom_nf90_check(NF90_CLOSE(iom_file(kiomid)%nfid), clinfo) |
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| 181 | ! |
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| 182 | END SUBROUTINE iom_nf90_close |
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| 183 | |
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| 184 | |
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| 185 | FUNCTION iom_nf90_varid ( kiomid, cdvar, kiv, kdimsz, kndims ) |
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| 186 | !!----------------------------------------------------------------------- |
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| 187 | !! *** FUNCTION iom_varid *** |
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| 188 | !! |
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| 189 | !! ** Purpose : get the id of a variable in a file with NF90 |
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| 190 | !!----------------------------------------------------------------------- |
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| 191 | INTEGER , INTENT(in ) :: kiomid ! file Identifier |
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| 192 | CHARACTER(len=*) , INTENT(in ) :: cdvar ! name of the variable |
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| 193 | INTEGER , INTENT(in ) :: kiv ! |
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| 194 | INTEGER, DIMENSION(:), INTENT( out), OPTIONAL :: kdimsz ! size of the dimensions |
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| 195 | INTEGER, INTENT( out), OPTIONAL :: kndims ! size of the dimensions |
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| 196 | ! |
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| 197 | INTEGER :: iom_nf90_varid ! iom variable Id |
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| 198 | INTEGER :: if90id ! nf90 file identifier |
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| 199 | INTEGER :: ji ! dummy loop index |
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| 200 | INTEGER :: ivarid ! NetCDF variable Id |
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| 201 | INTEGER :: i_nvd ! number of dimension of the variable |
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| 202 | INTEGER, DIMENSION(jpmax_dims) :: idimid ! dimension ids of the variable |
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| 203 | LOGICAL :: llok ! ok test |
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| 204 | CHARACTER(LEN=100) :: clinfo ! info character |
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| 205 | !!----------------------------------------------------------------------- |
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| 206 | clinfo = ' iom_nf90_varid, file: '//TRIM(iom_file(kiomid)%name)//', var: '//TRIM(cdvar) |
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| 207 | iom_nf90_varid = 0 ! default definition |
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| 208 | IF( PRESENT(kdimsz) ) kdimsz(:) = 0 ! default definition |
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| 209 | if90id = iom_file(kiomid)%nfid ! get back NetCDF file id |
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| 210 | ! |
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| 211 | llok = NF90_INQ_VARID( if90id, TRIM(cdvar), ivarid ) == nf90_noerr ! does the variable exist in the file |
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| 212 | IF( llok ) THEN |
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| 213 | iom_nf90_varid = kiv |
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| 214 | iom_file(kiomid)%nvars = kiv |
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| 215 | iom_file(kiomid)%nvid(kiv) = ivarid |
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| 216 | iom_file(kiomid)%cn_var(kiv) = TRIM(cdvar) |
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| 217 | CALL iom_nf90_check(NF90_Inquire_Variable(if90id, ivarid, ndims = i_nvd), clinfo) ! number of dimensions |
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| 218 | iom_file(kiomid)%ndims(kiv) = i_nvd |
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| 219 | CALL iom_nf90_check(NF90_Inquire_Variable(if90id, ivarid, dimids = idimid(1:i_nvd)), clinfo) ! dimensions ids |
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| 220 | iom_file(kiomid)%luld(kiv) = .FALSE. ! default value |
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| 221 | iom_file(kiomid)%dimsz(:,kiv) = 0 ! reset dimsz in case previously used |
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| 222 | DO ji = 1, i_nvd ! dimensions size |
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| 223 | CALL iom_nf90_check(NF90_Inquire_Dimension(if90id, idimid(ji), len = iom_file(kiomid)%dimsz(ji,kiv)), clinfo) |
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| 224 | IF( idimid(ji) == iom_file(kiomid)%iduld ) iom_file(kiomid)%luld(kiv) = .TRUE. ! unlimited dimension? |
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| 225 | END DO |
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| 226 | !---------- Deal with scale_factor and add_offset |
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| 227 | llok = NF90_Inquire_attribute(if90id, ivarid, 'scale_factor') == nf90_noerr |
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| 228 | IF( llok) THEN |
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| 229 | CALL iom_nf90_check(NF90_GET_ATT(if90id, ivarid, 'scale_factor', iom_file(kiomid)%scf(kiv)), clinfo) |
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| 230 | ELSE |
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| 231 | iom_file(kiomid)%scf(kiv) = 1. |
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| 232 | END IF |
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| 233 | llok = NF90_Inquire_attribute(if90id, ivarid, 'add_offset') == nf90_noerr |
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| 234 | IF( llok ) THEN |
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| 235 | CALL iom_nf90_check(NF90_GET_ATT(if90id, ivarid, 'add_offset', iom_file(kiomid)%ofs(kiv)), clinfo) |
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| 236 | ELSE |
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| 237 | iom_file(kiomid)%ofs(kiv) = 0. |
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| 238 | END IF |
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| 239 | ! return the simension size |
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| 240 | IF( PRESENT(kdimsz) ) THEN |
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| 241 | IF( i_nvd == SIZE(kdimsz) ) THEN |
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| 242 | kdimsz(:) = iom_file(kiomid)%dimsz(1:i_nvd,kiv) |
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| 243 | ELSE |
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| 244 | WRITE(ctmp1,*) i_nvd, SIZE(kdimsz) |
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| 245 | CALL ctl_stop( TRIM(clinfo), 'error in kdimsz size'//TRIM(ctmp1) ) |
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| 246 | ENDIF |
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| 247 | ENDIF |
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| 248 | IF( PRESENT(kndims) ) kndims = iom_file(kiomid)%ndims(kiv) |
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| 249 | ELSE |
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| 250 | iom_nf90_varid = -1 ! variable not found, return error code: -1 |
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| 251 | ENDIF |
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| 252 | ! |
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| 253 | END FUNCTION iom_nf90_varid |
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| 254 | |
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| 255 | |
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| 256 | SUBROUTINE iom_nf90_g0d( kiomid, kvid, pvar, kstart ) |
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| 257 | !!----------------------------------------------------------------------- |
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| 258 | !! *** ROUTINE iom_nf90_g0d *** |
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| 259 | !! |
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| 260 | !! ** Purpose : read a scalar with NF90 |
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| 261 | !!----------------------------------------------------------------------- |
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| 262 | INTEGER , INTENT(in ) :: kiomid ! Identifier of the file |
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| 263 | INTEGER , INTENT(in ) :: kvid ! variable id |
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| 264 | REAL(wp), INTENT( out) :: pvar ! read field |
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| 265 | INTEGER , DIMENSION(1), INTENT(in ), OPTIONAL :: kstart ! start position of the reading in each axis |
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| 266 | ! |
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| 267 | CHARACTER(LEN=100) :: clinfo ! info character |
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| 268 | !--------------------------------------------------------------------- |
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| 269 | clinfo = 'iom_nf90_g0d , file: '//TRIM(iom_file(kiomid)%name)//', var: '//TRIM(iom_file(kiomid)%cn_var(kvid)) |
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| 270 | CALL iom_nf90_check(NF90_GET_VAR(iom_file(kiomid)%nfid, iom_file(kiomid)%nvid(kvid), pvar, start = kstart), clinfo ) |
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| 271 | ! |
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| 272 | END SUBROUTINE iom_nf90_g0d |
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| 273 | |
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| 274 | |
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| 275 | SUBROUTINE iom_nf90_g123d( kiomid, kvid, knbdim, kstart, kcount, kx1, kx2, ky1, ky2, & |
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| 276 | & pv_r1d, pv_r2d, pv_r3d ) |
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| 277 | !!----------------------------------------------------------------------- |
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| 278 | !! *** ROUTINE iom_nf90_g123d *** |
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| 279 | !! |
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| 280 | !! ** Purpose : read a 1D/2D/3D variable with NF90 |
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| 281 | !! |
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| 282 | !! ** Method : read ONE record at each CALL |
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| 283 | !!----------------------------------------------------------------------- |
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| 284 | INTEGER , INTENT(in ) :: kiomid ! iom identifier of the file |
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| 285 | INTEGER , INTENT(in ) :: kvid ! Name of the variable |
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| 286 | INTEGER , INTENT(in ) :: knbdim ! number of dimensions of the variable |
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| 287 | INTEGER , DIMENSION(:) , INTENT(in ) :: kstart ! start position of the reading in each axis |
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| 288 | INTEGER , DIMENSION(:) , INTENT(in ) :: kcount ! number of points to be read in each axis |
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| 289 | INTEGER , INTENT(in ) :: kx1, kx2, ky1, ky2 ! subdomain indexes |
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| 290 | REAL(wp), DIMENSION(:) , INTENT( out), OPTIONAL :: pv_r1d ! read field (1D case) |
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| 291 | REAL(wp), DIMENSION(:,:) , INTENT( out), OPTIONAL :: pv_r2d ! read field (2D case) |
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| 292 | REAL(wp), DIMENSION(:,:,:) , INTENT( out), OPTIONAL :: pv_r3d ! read field (3D case) |
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| 293 | ! |
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| 294 | CHARACTER(LEN=100) :: clinfo ! info character |
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| 295 | INTEGER :: if90id ! nf90 identifier of the opened file |
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| 296 | INTEGER :: ivid ! nf90 variable id |
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| 297 | !--------------------------------------------------------------------- |
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| 298 | clinfo = 'iom_nf90_g123d , file: '//TRIM(iom_file(kiomid)%name)//', var: '//TRIM(iom_file(kiomid)%cn_var(kvid)) |
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| 299 | if90id = iom_file(kiomid)%nfid ! get back NetCDF file id |
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| 300 | ivid = iom_file(kiomid)%nvid(kvid) ! get back NetCDF var id |
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| 301 | ! |
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| 302 | IF( PRESENT(pv_r1d) ) THEN |
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| 303 | CALL iom_nf90_check( NF90_GET_VAR(if90id, ivid, pv_r1d(: ), start = kstart(1:knbdim), & |
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| 304 | & count = kcount(1:knbdim)), clinfo ) |
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| 305 | ELSEIF( PRESENT(pv_r2d) ) THEN |
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| 306 | CALL iom_nf90_check( NF90_GET_VAR(if90id, ivid, pv_r2d(kx1:kx2,ky1:ky2 ), start = kstart(1:knbdim), & |
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| 307 | & count = kcount(1:knbdim)), clinfo ) |
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| 308 | ELSEIF( PRESENT(pv_r3d) ) THEN |
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| 309 | CALL iom_nf90_check( NF90_GET_VAR(if90id, ivid, pv_r3d(kx1:kx2,ky1:ky2,:), start = kstart(1:knbdim), & |
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| 310 | & count = kcount(1:knbdim)), clinfo ) |
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| 311 | ENDIF |
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| 312 | ! |
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| 313 | END SUBROUTINE iom_nf90_g123d |
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| 314 | |
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| 315 | |
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| 316 | SUBROUTINE iom_nf90_att( kiomid, cdatt, pv_i0d, pv_r0d, cdvar) |
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| 317 | !!----------------------------------------------------------------------- |
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| 318 | !! *** ROUTINE iom_nf90_att *** |
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| 319 | !! |
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| 320 | !! ** Purpose : read an integer attribute with NF90 |
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| 321 | !!----------------------------------------------------------------------- |
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| 322 | INTEGER , INTENT(in ) :: kiomid ! Identifier of the file |
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| 323 | CHARACTER(len=*), INTENT(in ) :: cdatt ! attribute name |
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| 324 | INTEGER , INTENT( out), OPTIONAL :: pv_i0d ! read field |
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| 325 | REAL(wp), INTENT( out), OPTIONAL :: pv_r0d ! read field |
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| 326 | CHARACTER(len=*), INTENT(in ), OPTIONAL :: cdvar ! name of the variable |
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| 327 | ! |
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| 328 | INTEGER :: if90id ! temporary integer |
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| 329 | INTEGER :: ivarid ! NetCDF variable Id |
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| 330 | LOGICAL :: llok ! temporary logical |
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| 331 | CHARACTER(LEN=100) :: clinfo ! info character |
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| 332 | !--------------------------------------------------------------------- |
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| 333 | ! |
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| 334 | if90id = iom_file(kiomid)%nfid |
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| 335 | IF( PRESENT(cdvar) ) THEN |
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| 336 | llok = NF90_INQ_VARID( if90id, TRIM(cdvar), ivarid ) == nf90_noerr ! does the variable exist in the file |
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| 337 | IF( llok ) THEN |
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| 338 | llok = NF90_Inquire_attribute(if90id, ivarid, cdatt) == nf90_noerr |
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| 339 | ELSE |
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| 340 | CALL ctl_warn('iom_nf90_getatt: no variable '//cdvar//' found') |
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| 341 | ENDIF |
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| 342 | ELSE |
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| 343 | llok = NF90_Inquire_attribute(if90id, NF90_GLOBAL, cdatt) == nf90_noerr |
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| 344 | ENDIF |
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| 345 | ! |
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| 346 | IF( llok) THEN |
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| 347 | clinfo = 'iom_nf90_getatt, file: '//TRIM(iom_file(kiomid)%name)//', att: '//TRIM(cdatt) |
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| 348 | IF( PRESENT(pv_r0d) ) THEN |
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| 349 | IF( PRESENT(cdvar) ) THEN |
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| 350 | CALL iom_nf90_check(NF90_GET_ATT(if90id, ivarid, cdatt, values=pv_r0d), clinfo) |
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| 351 | ELSE |
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| 352 | CALL iom_nf90_check(NF90_GET_ATT(if90id, NF90_GLOBAL, cdatt, values=pv_r0d), clinfo) |
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| 353 | ENDIF |
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| 354 | ELSE |
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| 355 | IF( PRESENT(cdvar) ) THEN |
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| 356 | CALL iom_nf90_check(NF90_GET_ATT(if90id, ivarid, cdatt, values=pv_i0d), clinfo) |
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| 357 | ELSE |
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| 358 | CALL iom_nf90_check(NF90_GET_ATT(if90id, NF90_GLOBAL, cdatt, values=pv_i0d), clinfo) |
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| 359 | ENDIF |
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| 360 | ENDIF |
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| 361 | ELSE |
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| 362 | CALL ctl_warn('iom_nf90_getatt: no attribute '//cdatt//' found') |
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| 363 | IF( PRESENT(pv_r0d) ) THEN |
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| 364 | pv_r0d = -999._wp |
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| 365 | ELSE |
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| 366 | pv_i0d = -999 |
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| 367 | ENDIF |
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| 368 | ENDIF |
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| 369 | ! |
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| 370 | END SUBROUTINE iom_nf90_att |
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| 371 | |
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| 372 | |
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| 373 | SUBROUTINE iom_nf90_gettime( kiomid, kvid, ptime, cdunits, cdcalendar ) |
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| 374 | !!-------------------------------------------------------------------- |
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| 375 | !! *** SUBROUTINE iom_gettime *** |
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| 376 | !! |
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| 377 | !! ** Purpose : read the time axis kvid in the file with NF90 |
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| 378 | !!-------------------------------------------------------------------- |
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| 379 | INTEGER , INTENT(in ) :: kiomid ! file Identifier |
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| 380 | INTEGER , INTENT(in ) :: kvid ! variable id |
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| 381 | REAL(wp), DIMENSION(:) , INTENT( out) :: ptime ! the time axis |
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| 382 | CHARACTER(len=*), OPTIONAL, INTENT( out) :: cdunits ! units attribute |
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| 383 | CHARACTER(len=*), OPTIONAL, INTENT( out) :: cdcalendar ! calendar attribute |
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| 384 | ! |
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| 385 | CHARACTER(LEN=100) :: clinfo ! info character |
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| 386 | !--------------------------------------------------------------------- |
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| 387 | clinfo = 'iom_nf90_gettime, file: '//TRIM(iom_file(kiomid)%name)//', var: '//TRIM(iom_file(kiomid)%cn_var(kvid)) |
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| 388 | CALL iom_nf90_check(NF90_GET_VAR(iom_file(kiomid)%nfid, iom_file(kiomid)%nvid(kvid), ptime(:), & |
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| 389 | & start=(/ 1 /), count=(/ iom_file(kiomid)%dimsz(1, kvid) /)), clinfo) |
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| 390 | IF ( PRESENT(cdunits) ) THEN |
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| 391 | CALL iom_nf90_check(NF90_GET_ATT(iom_file(kiomid)%nfid, iom_file(kiomid)%nvid(kvid), "units", & |
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| 392 | & values=cdunits), clinfo) |
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| 393 | ENDIF |
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| 394 | IF ( PRESENT(cdcalendar) ) THEN |
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| 395 | CALL iom_nf90_check(NF90_GET_ATT(iom_file(kiomid)%nfid, iom_file(kiomid)%nvid(kvid), "calendar", & |
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| 396 | & values=cdcalendar), clinfo) |
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| 397 | ENDIF |
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| 398 | ! |
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| 399 | END SUBROUTINE iom_nf90_gettime |
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| 400 | |
|---|
| 401 | |
|---|
| 402 | SUBROUTINE iom_nf90_rp0123d( kt, kwrite, kiomid, cdvar , kvid , ktype, & |
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| 403 | & pv_r0d, pv_r1d, pv_r2d, pv_r3d ) |
|---|
| 404 | !!-------------------------------------------------------------------- |
|---|
| 405 | !! *** SUBROUTINE iom_nf90_rstput *** |
|---|
| 406 | !! |
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| 407 | !! ** Purpose : read the time axis cdvar in the file |
|---|
| 408 | !!-------------------------------------------------------------------- |
|---|
| 409 | INTEGER , INTENT(in) :: kt ! ocean time-step |
|---|
| 410 | INTEGER , INTENT(in) :: kwrite ! writing time-step |
|---|
| 411 | INTEGER , INTENT(in) :: kiomid ! Identifier of the file |
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| 412 | CHARACTER(len=*) , INTENT(in) :: cdvar ! variable name |
|---|
| 413 | INTEGER , INTENT(in) :: kvid ! variable id |
|---|
| 414 | INTEGER , INTENT(in), OPTIONAL :: ktype ! variable type (default R8) |
|---|
| 415 | REAL(wp) , INTENT(in), OPTIONAL :: pv_r0d ! written Od field |
|---|
| 416 | REAL(wp), DIMENSION( :), INTENT(in), OPTIONAL :: pv_r1d ! written 1d field |
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| 417 | REAL(wp), DIMENSION(:, : ), INTENT(in), OPTIONAL :: pv_r2d ! written 2d field |
|---|
| 418 | REAL(wp), DIMENSION(:, :, :), INTENT(in), OPTIONAL :: pv_r3d ! written 3d field |
|---|
| 419 | ! |
|---|
| 420 | INTEGER :: idims ! number of dimension |
|---|
| 421 | INTEGER :: idvar ! variable id |
|---|
| 422 | INTEGER :: jd ! dimension loop counter |
|---|
| 423 | INTEGER :: ix1, ix2, iy1, iy2 ! subdomain indexes |
|---|
| 424 | INTEGER, DIMENSION(4) :: idimsz ! dimensions size |
|---|
| 425 | INTEGER, DIMENSION(4) :: idimid ! dimensions id |
|---|
| 426 | CHARACTER(LEN=256) :: clinfo ! info character |
|---|
| 427 | CHARACTER(LEN= 12), DIMENSION(4) :: cltmp ! temporary character |
|---|
| 428 | INTEGER :: if90id ! nf90 file identifier |
|---|
| 429 | INTEGER :: idmy ! dummy variable |
|---|
| 430 | INTEGER :: itype ! variable type |
|---|
| 431 | INTEGER, DIMENSION(4) :: ichunksz ! NetCDF4 chunk sizes. Will be computed using |
|---|
| 432 | ! nn_nchunks_[i,j,k,t] namelist parameters |
|---|
| 433 | INTEGER :: ichunkalg, ishuffle,& |
|---|
| 434 | ideflate, ideflate_level |
|---|
| 435 | ! NetCDF4 internally fixed parameters |
|---|
| 436 | LOGICAL :: lchunk ! logical switch to activate chunking and compression |
|---|
| 437 | ! when appropriate (currently chunking is applied to 4d fields only) |
|---|
| 438 | !--------------------------------------------------------------------- |
|---|
| 439 | ! |
|---|
| 440 | clinfo = ' iom_nf90_rp0123d, file: '//TRIM(iom_file(kiomid)%name)//', var: '//TRIM(cdvar) |
|---|
| 441 | if90id = iom_file(kiomid)%nfid |
|---|
| 442 | ! |
|---|
| 443 | ! define dimension variables if it is not already done |
|---|
| 444 | ! ========================== |
|---|
| 445 | IF( iom_file(kiomid)%nvars == 0 ) THEN |
|---|
| 446 | ! are we in define mode? |
|---|
| 447 | IF( iom_file(kiomid)%irec /= -1 ) THEN ! trick: irec used to know if the file is in define mode or not |
|---|
| 448 | CALL iom_nf90_check(NF90_REDEF( if90id ), clinfo) ; iom_file(kiomid)%irec = -1 |
|---|
| 449 | ENDIF |
|---|
| 450 | ! define the dimension variables if it is not already done |
|---|
| 451 | cltmp = (/ 'nav_lon ', 'nav_lat ', 'nav_lev ', 'time_counter' /) |
|---|
| 452 | CALL iom_nf90_check(NF90_DEF_VAR( if90id, TRIM(cltmp(1)), NF90_FLOAT , (/ 1, 2 /), iom_file(kiomid)%nvid(1) ), clinfo) |
|---|
| 453 | CALL iom_nf90_check(NF90_DEF_VAR( if90id, TRIM(cltmp(2)), NF90_FLOAT , (/ 1, 2 /), iom_file(kiomid)%nvid(2) ), clinfo) |
|---|
| 454 | CALL iom_nf90_check(NF90_DEF_VAR( if90id, TRIM(cltmp(3)), NF90_FLOAT , (/ 3 /), iom_file(kiomid)%nvid(3) ), clinfo) |
|---|
| 455 | CALL iom_nf90_check(NF90_DEF_VAR( if90id, TRIM(cltmp(4)), NF90_DOUBLE, (/ 4 /), iom_file(kiomid)%nvid(4) ), clinfo) |
|---|
| 456 | ! update informations structure related the dimension variable we just added... |
|---|
| 457 | iom_file(kiomid)%nvars = 4 |
|---|
| 458 | iom_file(kiomid)%luld(1:4) = (/ .FALSE., .FALSE., .FALSE., .TRUE. /) |
|---|
| 459 | iom_file(kiomid)%cn_var(1:4) = cltmp |
|---|
| 460 | iom_file(kiomid)%ndims(1:4) = (/ 2, 2, 1, 1 /) |
|---|
| 461 | ! trick: defined to 0 to say that dimension variables are defined but not yet written |
|---|
| 462 | iom_file(kiomid)%dimsz(1, 1) = 0 |
|---|
| 463 | IF(lwp) WRITE(numout,*) TRIM(clinfo)//' define dimension variables done' |
|---|
| 464 | ENDIF |
|---|
| 465 | ! define the data if it is not already done |
|---|
| 466 | ! =============== |
|---|
| 467 | IF( kvid <= 0 ) THEN |
|---|
| 468 | ! |
|---|
| 469 | ! NetCDF4 chunking and compression fixed settings |
|---|
| 470 | ichunkalg = 0 |
|---|
| 471 | ishuffle = 1 |
|---|
| 472 | ideflate = 1 |
|---|
| 473 | ideflate_level = 1 |
|---|
| 474 | ! |
|---|
| 475 | idvar = iom_file(kiomid)%nvars + 1 |
|---|
| 476 | ! are we in define mode? |
|---|
| 477 | IF( iom_file(kiomid)%irec /= -1 ) THEN ! trick: irec used to know if the file is in define mode or not |
|---|
| 478 | CALL iom_nf90_check(NF90_REDEF( if90id ), clinfo) ; iom_file(kiomid)%irec = -1 |
|---|
| 479 | ENDIF |
|---|
| 480 | ! variable definition |
|---|
| 481 | IF( PRESENT(pv_r0d) ) THEN ; idims = 0 |
|---|
| 482 | ELSEIF( PRESENT(pv_r1d) ) THEN ; idims = 2 ; idimid(1:idims) = (/ 3,4/) |
|---|
| 483 | ELSEIF( PRESENT(pv_r2d) ) THEN ; idims = 3 ; idimid(1:idims) = (/1,2 ,4/) |
|---|
| 484 | ELSEIF( PRESENT(pv_r3d) ) THEN ; idims = 4 ; idimid(1:idims) = (/1,2,3,4/) |
|---|
| 485 | ENDIF |
|---|
| 486 | IF( PRESENT(ktype) ) THEN ! variable external type |
|---|
| 487 | SELECT CASE (ktype) |
|---|
| 488 | CASE (jp_r8) ; itype = NF90_DOUBLE |
|---|
| 489 | CASE (jp_r4) ; itype = NF90_FLOAT |
|---|
| 490 | CASE (jp_i4) ; itype = NF90_INT |
|---|
| 491 | CASE (jp_i2) ; itype = NF90_SHORT |
|---|
| 492 | CASE (jp_i1) ; itype = NF90_BYTE |
|---|
| 493 | CASE DEFAULT ; CALL ctl_stop( TRIM(clinfo)//' unknown variable type' ) |
|---|
| 494 | END SELECT |
|---|
| 495 | ELSE |
|---|
| 496 | itype = NF90_DOUBLE |
|---|
| 497 | ENDIF |
|---|
| 498 | IF( PRESENT(pv_r0d) ) THEN |
|---|
| 499 | CALL iom_nf90_check(NF90_DEF_VAR( if90id, TRIM(cdvar), itype, & |
|---|
| 500 | & iom_file(kiomid)%nvid(idvar) ), clinfo) |
|---|
| 501 | ELSE |
|---|
| 502 | CALL iom_nf90_check(NF90_DEF_VAR( if90id, TRIM(cdvar), itype, idimid(1:idims), & |
|---|
| 503 | & iom_file(kiomid)%nvid(idvar) ), clinfo) |
|---|
| 504 | ENDIF |
|---|
| 505 | lchunk = .false. |
|---|
| 506 | IF( snc4set%luse .AND. idims.eq.4 ) lchunk = .true. |
|---|
| 507 | ! update informations structure related the new variable we want to add... |
|---|
| 508 | iom_file(kiomid)%nvars = idvar |
|---|
| 509 | iom_file(kiomid)%cn_var(idvar) = TRIM(cdvar) |
|---|
| 510 | iom_file(kiomid)%scf(idvar) = 1. |
|---|
| 511 | iom_file(kiomid)%ofs(idvar) = 0. |
|---|
| 512 | iom_file(kiomid)%ndims(idvar) = idims |
|---|
| 513 | IF( .NOT. PRESENT(pv_r0d) ) THEN ; iom_file(kiomid)%luld(idvar) = .TRUE. |
|---|
| 514 | ELSE ; iom_file(kiomid)%luld(idvar) = .FALSE. |
|---|
| 515 | ENDIF |
|---|
| 516 | DO jd = 1, idims |
|---|
| 517 | CALL iom_nf90_check(NF90_INQUIRE_DIMENSION( if90id, idimid(jd), len = iom_file(kiomid)%dimsz(jd,idvar) ), clinfo) |
|---|
| 518 | IF ( lchunk ) ichunksz(jd) = iom_file(kiomid)%dimsz(jd,idvar) |
|---|
| 519 | END DO |
|---|
| 520 | IF ( lchunk ) THEN |
|---|
| 521 | ! Calculate chunk sizes by partitioning each dimension as requested in namnc4 namelist |
|---|
| 522 | ! Disallow very small chunk sizes and prevent chunk sizes larger than each individual dimension |
|---|
| 523 | ichunksz(1) = MIN( ichunksz(1),MAX( (ichunksz(1)-1)/snc4set%ni + 1 ,16 ) ) ! Suggested default nc4set%ni=4 |
|---|
| 524 | ichunksz(2) = MIN( ichunksz(2),MAX( (ichunksz(2)-1)/snc4set%nj + 1 ,16 ) ) ! Suggested default nc4set%nj=2 |
|---|
| 525 | ichunksz(3) = MIN( ichunksz(3),MAX( (ichunksz(3)-1)/snc4set%nk + 1 , 1 ) ) ! Suggested default nc4set%nk=6 |
|---|
| 526 | ichunksz(4) = 1 ! Do not allow chunks to span the |
|---|
| 527 | ! unlimited dimension |
|---|
| 528 | CALL iom_nf90_check(SET_NF90_DEF_VAR_CHUNKING(if90id, idvar, ichunkalg, ichunksz), clinfo) |
|---|
| 529 | CALL iom_nf90_check(SET_NF90_DEF_VAR_DEFLATE(if90id, idvar, ishuffle, ideflate, ideflate_level), clinfo) |
|---|
| 530 | IF(lwp) WRITE(numout,*) TRIM(clinfo)//' chunked ok. Chunks sizes: ', ichunksz |
|---|
| 531 | ENDIF |
|---|
| 532 | IF(lwp) WRITE(numout,*) TRIM(clinfo)//' defined ok' |
|---|
| 533 | ELSE |
|---|
| 534 | idvar = kvid |
|---|
| 535 | ENDIF |
|---|
| 536 | |
|---|
| 537 | ! time step kwrite : write the variable |
|---|
| 538 | IF( kt == kwrite ) THEN |
|---|
| 539 | ! are we in write mode? |
|---|
| 540 | IF( iom_file(kiomid)%irec == -1 ) THEN ! trick: irec used to know if the file is in define mode or not |
|---|
| 541 | CALL iom_nf90_check(NF90_ENDDEF( if90id ), clinfo) ; iom_file(kiomid)%irec = 0 |
|---|
| 542 | ENDIF |
|---|
| 543 | ! on what kind of domain must the data be written? |
|---|
| 544 | IF( PRESENT(pv_r2d) .OR. PRESENT(pv_r3d) ) THEN |
|---|
| 545 | idimsz(1:2) = iom_file(kiomid)%dimsz(1:2,idvar) |
|---|
| 546 | IF( idimsz(1) == (nlei - nldi + 1) .AND. idimsz(2) == (nlej - nldj + 1) ) THEN |
|---|
| 547 | ix1 = nldi ; ix2 = nlei ; iy1 = nldj ; iy2 = nlej |
|---|
| 548 | ELSEIF( idimsz(1) == nlci .AND. idimsz(2) == nlcj ) THEN |
|---|
| 549 | ix1 = 1 ; ix2 = nlci ; iy1 = 1 ; iy2 = nlcj |
|---|
| 550 | ELSEIF( idimsz(1) == jpi .AND. idimsz(2) == jpj ) THEN |
|---|
| 551 | ix1 = 1 ; ix2 = jpi ; iy1 = 1 ; iy2 = jpj |
|---|
| 552 | ELSE |
|---|
| 553 | CALL ctl_stop( 'iom_nf90_rp0123d: should have been an impossible case...' ) |
|---|
| 554 | ENDIF |
|---|
| 555 | |
|---|
| 556 | ! write dimension variables if it is not already done |
|---|
| 557 | ! ============= |
|---|
| 558 | ! trick: is defined to 0 => dimension variable are defined but not yet written |
|---|
| 559 | IF( iom_file(kiomid)%dimsz(1, 1) == 0 ) THEN |
|---|
| 560 | CALL iom_nf90_check(NF90_INQ_VARID( if90id, 'nav_lon' , idmy ), clinfo) |
|---|
| 561 | CALL iom_nf90_check(NF90_PUT_VAR( if90id, idmy, glamt(ix1:ix2, iy1:iy2) ), clinfo) |
|---|
| 562 | CALL iom_nf90_check(NF90_INQ_VARID( if90id, 'nav_lat' , idmy ), clinfo) |
|---|
| 563 | CALL iom_nf90_check(NF90_PUT_VAR( if90id, idmy, gphit(ix1:ix2, iy1:iy2) ), clinfo) |
|---|
| 564 | CALL iom_nf90_check(NF90_INQ_VARID( if90id, 'nav_lev' , idmy ), clinfo) |
|---|
| 565 | CALL iom_nf90_check(NF90_PUT_VAR( if90id, idmy, gdept_1d ), clinfo) |
|---|
| 566 | ! +++ WRONG VALUE: to be improved but not really useful... |
|---|
| 567 | CALL iom_nf90_check(NF90_INQ_VARID( if90id, 'time_counter', idmy ), clinfo) |
|---|
| 568 | CALL iom_nf90_check(NF90_PUT_VAR( if90id, idmy, kt ), clinfo) |
|---|
| 569 | ! update the values of the variables dimensions size |
|---|
| 570 | CALL iom_nf90_check(NF90_INQUIRE_DIMENSION( if90id, 1, len = iom_file(kiomid)%dimsz(1,1) ), clinfo) |
|---|
| 571 | CALL iom_nf90_check(NF90_INQUIRE_DIMENSION( if90id, 2, len = iom_file(kiomid)%dimsz(2,1) ), clinfo) |
|---|
| 572 | iom_file(kiomid)%dimsz(1:2, 2) = iom_file(kiomid)%dimsz(1:2, 1) |
|---|
| 573 | CALL iom_nf90_check(NF90_INQUIRE_DIMENSION( if90id, 3, len = iom_file(kiomid)%dimsz(1,3) ), clinfo) |
|---|
| 574 | iom_file(kiomid)%dimsz(1 , 4) = 1 ! unlimited dimension |
|---|
| 575 | IF(lwp) WRITE(numout,*) TRIM(clinfo)//' write dimension variables done' |
|---|
| 576 | ENDIF |
|---|
| 577 | ENDIF |
|---|
| 578 | |
|---|
| 579 | ! write the data |
|---|
| 580 | ! ============= |
|---|
| 581 | IF( PRESENT(pv_r0d) ) THEN |
|---|
| 582 | CALL iom_nf90_check(NF90_PUT_VAR( if90id, idvar, pv_r0d ), clinfo) |
|---|
| 583 | ELSEIF( PRESENT(pv_r1d) ) THEN |
|---|
| 584 | CALL iom_nf90_check(NF90_PUT_VAR( if90id, idvar, pv_r1d( :) ), clinfo) |
|---|
| 585 | ELSEIF( PRESENT(pv_r2d) ) THEN |
|---|
| 586 | CALL iom_nf90_check(NF90_PUT_VAR( if90id, idvar, pv_r2d(ix1:ix2, iy1:iy2 ) ), clinfo) |
|---|
| 587 | ELSEIF( PRESENT(pv_r3d) ) THEN |
|---|
| 588 | CALL iom_nf90_check(NF90_PUT_VAR( if90id, idvar, pv_r3d(ix1:ix2, iy1:iy2, :) ), clinfo) |
|---|
| 589 | ENDIF |
|---|
| 590 | ! add 1 to the size of the temporal dimension (not really useful...) |
|---|
| 591 | IF( iom_file(kiomid)%luld(idvar) ) iom_file(kiomid)%dimsz(iom_file(kiomid)%ndims(idvar), idvar) & |
|---|
| 592 | & = iom_file(kiomid)%dimsz(iom_file(kiomid)%ndims(idvar), idvar) + 1 |
|---|
| 593 | IF(lwp) WRITE(numout,*) TRIM(clinfo)//' written ok' |
|---|
| 594 | ENDIF |
|---|
| 595 | ! |
|---|
| 596 | END SUBROUTINE iom_nf90_rp0123d |
|---|
| 597 | |
|---|
| 598 | |
|---|
| 599 | SUBROUTINE iom_nf90_check( kstatus, cdinfo ) |
|---|
| 600 | !!-------------------------------------------------------------------- |
|---|
| 601 | !! *** SUBROUTINE iom_nf90_check *** |
|---|
| 602 | !! |
|---|
| 603 | !! ** Purpose : check nf90 errors |
|---|
| 604 | !!-------------------------------------------------------------------- |
|---|
| 605 | INTEGER, INTENT(in) :: kstatus |
|---|
| 606 | CHARACTER(LEN=*), INTENT(in) :: cdinfo |
|---|
| 607 | !--------------------------------------------------------------------- |
|---|
| 608 | IF(kstatus /= nf90_noerr) CALL ctl_stop( 'iom_nf90_check : '//TRIM(nf90_strerror(kstatus)), TRIM(cdinfo) ) |
|---|
| 609 | END SUBROUTINE iom_nf90_check |
|---|
| 610 | |
|---|
| 611 | !!====================================================================== |
|---|
| 612 | END MODULE iom_nf90 |
|---|
