[5255] | 1 | MODULE utils |
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| 2 | |
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| 3 | USE netcdf |
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| 4 | |
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[5257] | 5 | IMPLICIT NONE |
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[5255] | 6 | PUBLIC ! allows the acces to par_oce when dom_oce is used |
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| 7 | ! ! exception to coding rules... to be suppressed ??? |
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| 8 | |
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[5257] | 9 | ! PUBLIC dom_oce_alloc |
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[5255] | 10 | |
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[5257] | 11 | INTEGER, PARAMETER :: dp=8 , sp=4, wp=dp |
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[5255] | 12 | |
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| 13 | !! All coordinates |
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| 14 | !! --------------- |
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| 15 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: gdep3w_0 !: depth of t-points (sum of e3w) (m) |
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| 16 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: gdept_0, gdepw_0 !: analytical (time invariant) depth at t-w points (m) |
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| 17 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: e3v_0 , e3f_0 !: analytical (time invariant) vertical scale factors at v-f |
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| 18 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: e3t_0 , e3u_0 !: t-u points (m) |
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| 19 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: e3vw_0 !: analytical (time invariant) vertical scale factors at vw |
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| 20 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: e3w_0 , e3uw_0 !: w-uw points (m) |
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| 21 | |
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| 22 | !! s-coordinate and hybrid z-s-coordinate |
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| 23 | !! =----------------======--------------- |
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| 24 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: gsigt, gsigw !: model level depth coefficient at t-, w-levels (analytic) |
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| 25 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: gsi3w !: model level depth coefficient at w-level (sum of gsigw) |
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| 26 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: esigt, esigw !: vertical scale factor coef. at t-, w-levels |
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| 27 | |
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| 28 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hbatv , hbatf !: ocean depth at the vertical of v--f |
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| 29 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hbatt , hbatu !: t--u points (m) |
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| 30 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: scosrf, scobot !: ocean surface and bottom topographies |
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| 31 | ! ! (if deviating from coordinate surfaces in HYBRID) |
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| 32 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hifv , hiff !: interface depth between stretching at v--f |
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| 33 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hift , hifu !: and quasi-uniform spacing t--u points (m) |
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| 34 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: rx1 !: Maximum grid stiffness ratio |
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| 35 | |
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| 36 | !!---------------------------------------------------------------------- |
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| 37 | !! masks, bathymetry |
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| 38 | !! --------------------------------------------------------------------- |
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| 39 | INTEGER , PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: mbathy !: number of ocean level (=0, 1, ... , jpk-1) |
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| 40 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: bathy !: ocean depth (meters - read from file) |
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| 41 | |
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| 42 | !! Other variables needed by scoord_gen |
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| 43 | INTEGER :: jpi, jpj, jpk ! Size of the domain - read from bathy or namelist? |
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| 44 | INTEGER :: ji, jj, jk, jl ! dummy loop argument |
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| 45 | INTEGER :: iip1, ijp1, iim1, ijm1 ! temporary integers |
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| 46 | INTEGER :: ios ! Local integer output status for namelist read and allocation |
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[5257] | 47 | INTEGER :: numnam ! File handle for namelist |
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[5255] | 48 | REAL(wp) :: zrmax, ztaper ! temporary scalars |
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| 49 | REAL(wp) :: zrfact |
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| 50 | ! |
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[5257] | 51 | REAL(wp), ALLOCATABLE, DIMENSION(:,:) :: ztmpi1, ztmpi2, ztmpj1, ztmpj2 |
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| 52 | REAL(wp), ALLOCATABLE, DIMENSION(:,:) :: zenv, ztmp, zmsk, zri, zrj, zhbat |
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[5255] | 53 | |
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[5257] | 54 | !Namelist variables |
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| 55 | REAL(wp) :: rn_jpk, rn_sbot_min, rn_sbot_max, rn_hc, rn_rmax, rn_theta |
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| 56 | REAL(wp) :: rn_thetb, rn_bb, rn_alpha, rn_efold, rn_zs, rn_zb_a, rn_zb_b |
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| 57 | LOGICAL :: ln_s_sh94, ln_s_sf12, ln_sigcrit |
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| 58 | |
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[5255] | 59 | NAMELIST/namzgr_sco/rn_jpk, ln_s_sh94, ln_s_sf12, ln_sigcrit, rn_sbot_min, rn_sbot_max, rn_hc, rn_rmax,rn_theta, & |
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| 60 | rn_thetb, rn_bb, rn_alpha, rn_efold, rn_zs, rn_zb_a, rn_zb_b |
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| 61 | |
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[5257] | 62 | CONTAINS |
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[5255] | 63 | |
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| 64 | INTEGER FUNCTION dom_oce_alloc() |
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| 65 | !!---------------------------------------------------------------------- |
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[5257] | 66 | INTEGER, DIMENSION(4) :: ierr |
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[5255] | 67 | !!---------------------------------------------------------------------- |
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| 68 | ierr(:) = 0 |
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| 69 | ! |
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| 70 | ALLOCATE( zenv(jpi,jpj), ztmp(jpi,jpj), zmsk(jpi,jpj), zri(jpi,jpj), zrj(jpi,jpj), & |
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[5257] | 71 | & zhbat(jpi,jpj) , ztmpi1(jpi,jpj), ztmpi2(jpi,jpj), ztmpj1(jpi,jpj), ztmpj2(jpi,jpj), STAT=ierr(1) ) |
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[5255] | 72 | ! |
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[5257] | 73 | ALLOCATE( gdep3w_0(jpi,jpj,jpk) , e3v_0(jpi,jpj,jpk) , e3f_0(jpi,jpj,jpk) , & |
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| 74 | & gdept_0(jpi,jpj,jpk) , e3t_0(jpi,jpj,jpk) , e3u_0 (jpi,jpj,jpk) , & |
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| 75 | & gdepw_0(jpi,jpj,jpk) , e3w_0(jpi,jpj,jpk) , e3vw_0(jpi,jpj,jpk) , e3uw_0(jpi,jpj,jpk) , STAT=ierr(2) ) |
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[5255] | 76 | ! |
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| 77 | ! |
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| 78 | ! |
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| 79 | ALLOCATE( hbatv (jpi,jpj) , hbatf (jpi,jpj) , & |
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| 80 | & hbatt (jpi,jpj) , hbatu (jpi,jpj) , & |
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| 81 | & scosrf(jpi,jpj) , scobot(jpi,jpj) , & |
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| 82 | & hifv (jpi,jpj) , hiff (jpi,jpj) , & |
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[5257] | 83 | & hift (jpi,jpj) , hifu (jpi,jpj) , rx1 (jpi,jpj) , STAT=ierr(3) ) |
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[5255] | 84 | |
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[5257] | 85 | ALLOCATE( mbathy(jpi,jpj) , STAT=ierr(4) ) |
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| 86 | ! |
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[5255] | 87 | dom_oce_alloc = MAXVAL(ierr) |
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| 88 | ! |
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| 89 | END FUNCTION dom_oce_alloc |
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[5257] | 90 | |
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[5255] | 91 | |
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| 92 | SUBROUTINE read_bathy() |
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| 93 | !! Read bathymetry from input netcdf file |
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[5257] | 94 | INTEGER :: var_id, ncin |
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[5255] | 95 | |
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[5257] | 96 | CALL check_nf90( nf90_open('bathy.nc', NF90_NOWRITE, ncin), 'Error opening bathy.nc file' ) |
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[5255] | 97 | |
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| 98 | ! Find the size of the input bathymetry |
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| 99 | CALL dimlen(ncin, 'x', jpi) |
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| 100 | CALL dimlen(ncin, 'y', jpj) |
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| 101 | |
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| 102 | ALLOCATE( bathy(jpi, jpj) ) |
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| 103 | |
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| 104 | ! Read the bathymetry variable from file |
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[5257] | 105 | CALL check_nf90( nf90_inq_varid( ncin, 'bathymetry', var_id ), 'Cannot get variable ID for bathymetry') |
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[5255] | 106 | CALL check_nf90( nf90_get_var( ncin, var_id, bathy, (/ 1,1 /), (/ jpi, jpj /) ) ) |
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| 107 | |
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[5257] | 108 | CALL check_nf90( nf90_close(ncin), 'Error closing bathy.nc file' ) |
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| 109 | |
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[5255] | 110 | END SUBROUTINE read_bathy |
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| 111 | |
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| 112 | SUBROUTINE dimlen( ncid, dimname, len ) |
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| 113 | ! Determine the length of dimension dimname |
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| 114 | INTEGER, INTENT(in) :: ncid |
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| 115 | CHARACTER(LEN=*), INTENT(in) :: dimname |
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| 116 | INTEGER, INTENT(out) :: len |
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| 117 | ! Local variables |
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| 118 | INTEGER :: id_var, istatus |
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| 119 | |
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| 120 | id_var = 1 |
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| 121 | CALL check_nf90( nf90_inq_dimid(ncid, dimname, id_var), 'Dimension not found in file') |
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| 122 | CALL check_nf90( nf90_inquire_dimension(ncid,id_var,len=len)) |
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| 123 | |
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[5257] | 124 | END SUBROUTINE dimlen |
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| 125 | |
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| 126 | |
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| 127 | SUBROUTINE write_coord_file() |
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| 128 | ! Write out variables to the a netcdf coordinates file |
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| 129 | |
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| 130 | INTEGER :: id_x, id_y, id_z |
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| 131 | INTEGER :: ncout |
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| 132 | INTEGER, DIMENSION(11) :: var_ids !Array to contain all variable IDs |
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[5255] | 133 | |
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[5257] | 134 | !Create the file |
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| 135 | CALL check_nf90( nf90_create('coord_zgr.nc', NF90_CLOBBER, ncout), 'Could not create output file') |
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| 136 | ! |
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| 137 | !Define dimensions |
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| 138 | CALL check_nf90( nf90_def_dim(ncout, 'x', jpi, id_x) ) |
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| 139 | CALL check_nf90( nf90_def_dim(ncout, 'y', jpj, id_y) ) |
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| 140 | CALL check_nf90( nf90_def_dim(ncout, 'z', jpk, id_z) ) |
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| 141 | ! |
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| 142 | !Define variables |
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| 143 | CALL check_nf90( nf90_def_var(ncout, 'gdept_0', nf90_double, (/id_x, id_y,id_x/), var_ids(1)) ) |
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| 144 | CALL check_nf90( nf90_def_var(ncout, 'gdepw_0', nf90_double, (/id_x, id_y,id_x/), var_ids(2)) ) |
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| 145 | CALL check_nf90( nf90_def_var(ncout, 'gdep3w_0', nf90_double, (/id_x, id_y,id_x/), var_ids(3)) ) |
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| 146 | CALL check_nf90( nf90_def_var(ncout, 'e3f_0', nf90_double, (/id_x, id_y,id_x/), var_ids(4)) ) |
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| 147 | CALL check_nf90( nf90_def_var(ncout, 'e3t_0', nf90_double, (/id_x, id_y,id_x/), var_ids(5)) ) |
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| 148 | CALL check_nf90( nf90_def_var(ncout, 'e3u_0', nf90_double, (/id_x, id_y,id_x/), var_ids(6)) ) |
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| 149 | CALL check_nf90( nf90_def_var(ncout, 'e3v_0', nf90_double, (/id_x, id_y,id_x/), var_ids(7)) ) |
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| 150 | CALL check_nf90( nf90_def_var(ncout, 'e3w_0', nf90_double, (/id_x, id_y,id_x/), var_ids(8)) ) |
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| 151 | CALL check_nf90( nf90_def_var(ncout, 'e3uw_0', nf90_double, (/id_x, id_y,id_x/), var_ids(9)) ) |
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| 152 | CALL check_nf90( nf90_def_var(ncout, 'e3vw_0', nf90_double, (/id_x, id_y,id_x/), var_ids(10)) ) |
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| 153 | CALL check_nf90( nf90_def_var(ncout, 'mbathy', nf90_double, (/id_x, id_y,id_x/), var_ids(11)) ) |
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| 154 | |
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| 155 | ! End define mode |
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| 156 | CALL check_nf90( nf90_enddef(ncout) ) |
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[5255] | 157 | |
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[5257] | 158 | !Write variables to file |
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| 159 | CALL check_nf90( nf90_put_var(ncout, var_ids(1), gdept_0) ) |
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| 160 | CALL check_nf90( nf90_put_var(ncout, var_ids(2), gdepw_0) ) |
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| 161 | CALL check_nf90( nf90_put_var(ncout, var_ids(3), gdep3w_0) ) |
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| 162 | CALL check_nf90( nf90_put_var(ncout, var_ids(4), e3f_0) ) |
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| 163 | CALL check_nf90( nf90_put_var(ncout, var_ids(5), e3t_0) ) |
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| 164 | CALL check_nf90( nf90_put_var(ncout, var_ids(6), e3u_0) ) |
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| 165 | CALL check_nf90( nf90_put_var(ncout, var_ids(7), e3v_0) ) |
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| 166 | CALL check_nf90( nf90_put_var(ncout, var_ids(8), e3w_0) ) |
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| 167 | CALL check_nf90( nf90_put_var(ncout, var_ids(9), e3uw_0) ) |
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| 168 | CALL check_nf90( nf90_put_var(ncout, var_ids(10), e3vw_0) ) |
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| 169 | CALL check_nf90( nf90_put_var(ncout, var_ids(11), mbathy) ) |
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| 170 | |
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| 171 | CALL check_nf90( nf90_close(ncout) ) |
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[5255] | 172 | |
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| 173 | END SUBROUTINE write_coord_file |
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| 174 | |
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| 175 | SUBROUTINE check_nf90( istat, message ) |
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| 176 | !Check for netcdf errors |
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| 177 | INTEGER, INTENT(in) :: istat |
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| 178 | CHARACTER(LEN=*), INTENT(in), OPTIONAL :: message |
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| 179 | |
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| 180 | IF (istat /= nf90_noerr) THEN |
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[5257] | 181 | WRITE(*,*) 'ERROR! : '//TRIM(nf90_strerror(istat)) |
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| 182 | IF ( PRESENT(message) ) THEN ; WRITE(*,*) message ; ENDIF |
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[5255] | 183 | STOP |
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| 184 | ENDIF |
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| 185 | |
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| 186 | END SUBROUTINE check_nf90 |
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| 187 | |
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| 188 | |
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| 189 | END MODULE utils |
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