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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