[11948] | 1 | MODULE obs_readsnowdepth |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE obs_readsnowdepth *** |
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| 4 | !! Observation diagnostics: Get the snow depth for freeboard conversion to thickness |
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| 5 | !!====================================================================== |
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| 6 | !! History : ! 2018-10 (E. Fiedler) Initial version |
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| 7 | !!---------------------------------------------------------------------- |
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| 8 | |
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| 9 | !!---------------------------------------------------------------------- |
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| 10 | !! obs_rea_snowdepth : Driver for reading MDT |
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| 11 | !!---------------------------------------------------------------------- |
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| 12 | USE wrk_nemo ! Memory Allocation |
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| 13 | USE par_kind ! Precision variables |
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| 14 | USE par_oce ! Domain parameters |
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| 15 | USE in_out_manager ! I/O manager |
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| 16 | USE obs_surf_def ! Surface observation definitions |
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| 17 | USE obs_inter_sup ! Interpolation support routines |
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| 18 | USE obs_inter_h2d ! 2D interpolation |
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| 19 | USE obs_utils ! Various observation tools |
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| 20 | USE iom_nf90 ! IOM NetCDF |
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| 21 | USE netcdf ! NetCDF library |
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| 22 | USE lib_mpp ! MPP library |
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| 23 | USE dom_oce, ONLY : & ! Domain variables |
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| 24 | & tmask, tmask_i, e1t, e2t, gphit, glamt |
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| 25 | USE obs_const, ONLY : obfillflt ! Fillvalue |
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| 26 | USE oce , ONLY : sshn ! Model variables |
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| 27 | |
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| 28 | |
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| 29 | |
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| 30 | IMPLICIT NONE |
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| 31 | PRIVATE |
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| 32 | |
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| 33 | PUBLIC obs_rea_snowdepth ! called by dia_obs |
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| 34 | |
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| 35 | !!---------------------------------------------------------------------- |
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| 36 | !! NEMO/OPA 3.3 , NEMO Consortium (2010) |
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| 37 | !! $Id$ |
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| 38 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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| 39 | !!---------------------------------------------------------------------- |
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| 40 | CONTAINS |
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| 41 | |
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| 42 | SUBROUTINE obs_rea_snowdepth( fbddata, k2dint, thick_s ) |
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| 43 | !!--------------------------------------------------------------------- |
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| 44 | !! |
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| 45 | !! *** ROUTINE obs_rea_snowdepth *** |
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| 46 | !! |
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| 47 | !! ** Purpose : Get snowdepth from CICE |
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| 48 | !! |
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| 49 | !! ** Method : |
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| 50 | !! |
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| 51 | !! ** Action : |
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| 52 | !!---------------------------------------------------------------------- |
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| 53 | USE iom |
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| 54 | ! |
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| 55 | TYPE(obs_surf), INTENT(inout) :: fbddata ! Sea ice freeboard data |
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| 56 | INTEGER , INTENT(in) :: k2dint ! ? |
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| 57 | REAL(wp), INTENT(IN), DIMENSION(jpi,jpj) :: thick_s ! Model snow depth |
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| 58 | |
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| 59 | CHARACTER(LEN=12), PARAMETER :: cpname = 'obs_rea_snowdepth' |
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| 60 | |
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| 61 | INTEGER :: jobs ! Obs loop variable |
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| 62 | INTEGER :: jpi_thick_s, jpj_thick_s ! Number of grid point in lat/lon for the snow depth |
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| 63 | INTEGER :: iico, ijco ! Grid point indices |
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| 64 | |
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| 65 | ! |
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| 66 | REAL(wp), DIMENSION(1) :: zext, zobsmask |
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| 67 | REAL(wp), DIMENSION(2,2,1) :: zweig |
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| 68 | ! |
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| 69 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: zmask, z_thick_s_l, zglam, zgphi |
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| 70 | INTEGER , DIMENSION(:,:,:), ALLOCATABLE :: igrdi, igrdj |
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| 71 | ! |
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| 72 | REAL(wp), POINTER, DIMENSION(:,:) :: z_thick_s, thick_s_mask |
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| 73 | |
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| 74 | REAL(wp) :: zlam, zphi, zfill, zinfill ! local scalar |
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| 75 | !!---------------------------------------------------------------------- |
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| 76 | |
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| 77 | CALL wrk_alloc(jpi,jpj,z_thick_s,thick_s_mask) |
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| 78 | |
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| 79 | IF(lwp)WRITE(numout,*) |
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| 80 | IF(lwp)WRITE(numout,*) ' obs_rea_snowdepth : Get model snow depth for freeboard conversion to sea ice thickness' |
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| 81 | IF(lwp)WRITE(numout,*) ' ------------- ' |
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| 82 | CALL FLUSH(numout) |
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| 83 | |
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| 84 | ! Get ice thickness information |
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| 85 | z_thick_s = thick_s |
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| 86 | |
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| 87 | ! Setup mask based on tmask |
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| 88 | thick_s_mask(:,:) = tmask(:,:,1) |
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| 89 | |
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| 90 | ! Interpolate the snow depth already on the model grid at the observation point |
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| 91 | |
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| 92 | ALLOCATE( & |
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| 93 | & igrdi(2,2,fbddata%nsurf), & |
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| 94 | & igrdj(2,2,fbddata%nsurf), & |
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| 95 | & zglam(2,2,fbddata%nsurf), & |
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| 96 | & zgphi(2,2,fbddata%nsurf), & |
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| 97 | & zmask(2,2,fbddata%nsurf), & |
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| 98 | & z_thick_s_l(2,2,fbddata%nsurf) & |
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| 99 | & ) |
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| 100 | |
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| 101 | DO jobs = 1, fbddata%nsurf |
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| 102 | |
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| 103 | igrdi(1,1,jobs) = fbddata%mi(jobs)-1 |
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| 104 | igrdj(1,1,jobs) = fbddata%mj(jobs)-1 |
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| 105 | igrdi(1,2,jobs) = fbddata%mi(jobs)-1 |
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| 106 | igrdj(1,2,jobs) = fbddata%mj(jobs) |
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| 107 | igrdi(2,1,jobs) = fbddata%mi(jobs) |
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| 108 | igrdj(2,1,jobs) = fbddata%mj(jobs)-1 |
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| 109 | igrdi(2,2,jobs) = fbddata%mi(jobs) |
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| 110 | igrdj(2,2,jobs) = fbddata%mj(jobs) |
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| 111 | |
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| 112 | END DO |
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| 113 | |
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| 114 | CALL obs_int_comm_2d( 2, 2, fbddata%nsurf, jpi, jpj, igrdi, igrdj, glamt , zglam ) |
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| 115 | CALL obs_int_comm_2d( 2, 2, fbddata%nsurf, jpi, jpj, igrdi, igrdj, gphit , zgphi ) |
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| 116 | CALL obs_int_comm_2d( 2, 2, fbddata%nsurf, jpi, jpj, igrdi, igrdj, thick_s_mask, zmask ) |
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| 117 | CALL obs_int_comm_2d( 2, 2, fbddata%nsurf, jpi, jpj, igrdi, igrdj, z_thick_s , z_thick_s_l ) |
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| 118 | |
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| 119 | DO jobs = 1, fbddata%nsurf |
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| 120 | |
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| 121 | zlam = fbddata%rlam(jobs) |
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| 122 | zphi = fbddata%rphi(jobs) |
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| 123 | |
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| 124 | CALL obs_int_h2d_init( 1, 1, k2dint, zlam, zphi, & |
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| 125 | & zglam(:,:,jobs), zgphi(:,:,jobs), & |
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| 126 | & zmask(:,:,jobs), zweig, zobsmask ) |
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| 127 | |
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| 128 | CALL obs_int_h2d( 1, 1, zweig, z_thick_s_l(:,:,jobs), zext ) |
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| 129 | |
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| 130 | fbddata%rext(jobs,2) = zext(1) |
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| 131 | |
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| 132 | ! mark any masked data with a QC flag |
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| 133 | IF( zobsmask(1) == 0 ) fbddata%nqc(jobs) = IBSET(fbddata%nqc(jobs),15) |
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| 134 | |
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| 135 | END DO |
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| 136 | |
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| 137 | DEALLOCATE( & |
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| 138 | & igrdi, & |
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| 139 | & igrdj, & |
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| 140 | & zglam, & |
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| 141 | & zgphi, & |
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| 142 | & zmask, & |
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| 143 | & z_thick_s_l & |
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| 144 | & ) |
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| 145 | |
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| 146 | CALL wrk_dealloc(jpi,jpj,z_thick_s,thick_s_mask) |
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| 147 | IF(lwp)WRITE(numout,*) ' ------------- ' |
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| 148 | ! |
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| 149 | END SUBROUTINE obs_rea_snowdepth |
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| 150 | |
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| 151 | !!====================================================================== |
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| 152 | END MODULE obs_readsnowdepth |
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