1 | MODULE sbcrnf |
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2 | !!====================================================================== |
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3 | !! *** MODULE sbcrnf *** |
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4 | !! Ocean forcing: river runoff |
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5 | !!===================================================================== |
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6 | !! History : OPA ! 2000-11 (R. Hordoir, E. Durand) NetCDF FORMAT |
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7 | !! NEMO 1.0 ! 2002-09 (G. Madec) F90: Free form and module |
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8 | !! 3.0 ! 2006-07 (G. Madec) Surface module |
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9 | !! 3.2 ! 2009-04 (B. Lemaire) Introduce iom_put |
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10 | !! 3.3 ! 2010-10 (R. Furner, G. Madec) runoff distributed over ocean levels |
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11 | !!---------------------------------------------------------------------- |
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12 | |
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13 | !!---------------------------------------------------------------------- |
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14 | !! sbc_rnf : monthly runoffs read in a NetCDF file |
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15 | !! sbc_rnf_init : runoffs initialisation |
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16 | !! rnf_mouth : set river mouth mask |
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17 | !!---------------------------------------------------------------------- |
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18 | USE dom_oce ! ocean space and time domain |
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19 | USE phycst ! physical constants |
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20 | USE sbc_oce ! surface boundary condition variables |
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21 | USE eosbn2 ! Equation Of State |
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22 | USE closea, ONLY: l_clo_rnf, clo_rnf ! closed seas |
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23 | ! |
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24 | USE in_out_manager ! I/O manager |
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25 | USE fldread ! read input field at current time step |
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26 | USE iom ! I/O module |
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27 | USE lib_mpp ! MPP library |
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28 | |
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29 | IMPLICIT NONE |
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30 | PRIVATE |
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31 | |
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32 | PUBLIC sbc_rnf ! called in sbcmod module |
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33 | PUBLIC sbc_rnf_div ! called in divhor module |
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34 | PUBLIC sbc_rnf_alloc ! called in sbcmod module |
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35 | PUBLIC sbc_rnf_init ! called in sbcmod module |
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36 | |
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37 | ! !!* namsbc_rnf namelist * |
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38 | CHARACTER(len=100) :: cn_dir !: Root directory for location of rnf files |
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39 | LOGICAL , PUBLIC :: ln_rnf_depth !: depth river runoffs attribute specified in a file |
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40 | LOGICAL :: ln_rnf_depth_ini !: depth river runoffs computed at the initialisation |
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41 | REAL(wp) :: rn_rnf_max !: maximum value of the runoff climatologie (ln_rnf_depth_ini =T) |
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42 | REAL(wp) :: rn_dep_max !: depth over which runoffs is spread (ln_rnf_depth_ini =T) |
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43 | INTEGER :: nn_rnf_depth_file !: create (=1) a runoff depth file or not (=0) |
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44 | LOGICAL :: ln_rnf_icb !: iceberg flux is specified in a file |
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45 | LOGICAL :: ln_rnf_tem !: temperature river runoffs attribute specified in a file |
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46 | LOGICAL , PUBLIC :: ln_rnf_sal !: salinity river runoffs attribute specified in a file |
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47 | TYPE(FLD_N) , PUBLIC :: sn_rnf !: information about the runoff file to be read |
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48 | TYPE(FLD_N) :: sn_cnf !: information about the runoff mouth file to be read |
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49 | TYPE(FLD_N) :: sn_i_rnf !: information about the iceberg flux file to be read |
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50 | TYPE(FLD_N) :: sn_s_rnf !: information about the salinities of runoff file to be read |
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51 | TYPE(FLD_N) :: sn_t_rnf !: information about the temperatures of runoff file to be read |
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52 | TYPE(FLD_N) :: sn_dep_rnf !: information about the depth which river inflow affects |
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53 | LOGICAL , PUBLIC :: ln_rnf_mouth !: specific treatment in mouths vicinity |
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54 | REAL(wp) :: rn_hrnf !: runoffs, depth over which enhanced vertical mixing is used |
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55 | REAL(wp) , PUBLIC :: rn_avt_rnf !: runoffs, value of the additional vertical mixing coef. [m2/s] |
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56 | REAL(wp) , PUBLIC :: rn_rfact !: multiplicative factor for runoff |
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57 | |
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58 | LOGICAL , PUBLIC :: l_rnfcpl = .false. !: runoffs recieved from oasis |
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59 | INTEGER , PUBLIC :: nkrnf = 0 !: nb of levels over which Kz is increased at river mouths |
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60 | |
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61 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: rnfmsk !: river mouth mask (hori.) |
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62 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: rnfmsk_z !: river mouth mask (vert.) |
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63 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: h_rnf !: depth of runoff in m |
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64 | INTEGER, PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: nk_rnf !: depth of runoff in model levels |
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65 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: rnf_tsc_b, rnf_tsc !: before and now T & S runoff contents [K.m/s & PSU.m/s] |
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66 | |
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67 | TYPE(FLD), ALLOCATABLE, DIMENSION(:) :: sf_rnf ! structure: river runoff (file information, fields read) |
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68 | TYPE(FLD), ALLOCATABLE, DIMENSION(:) :: sf_i_rnf ! structure: iceberg flux (file information, fields read) |
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69 | TYPE(FLD), ALLOCATABLE, DIMENSION(:) :: sf_s_rnf ! structure: river runoff salinity (file information, fields read) |
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70 | TYPE(FLD), ALLOCATABLE, DIMENSION(:) :: sf_t_rnf ! structure: river runoff temperature (file information, fields read) |
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71 | |
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72 | !!---------------------------------------------------------------------- |
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73 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
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74 | !! $Id$ |
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75 | !! Software governed by the CeCILL license (see ./LICENSE) |
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76 | !!---------------------------------------------------------------------- |
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77 | CONTAINS |
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78 | |
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79 | INTEGER FUNCTION sbc_rnf_alloc() |
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80 | !!---------------------------------------------------------------------- |
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81 | !! *** ROUTINE sbc_rnf_alloc *** |
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82 | !!---------------------------------------------------------------------- |
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83 | ALLOCATE( rnfmsk(jpi,jpj) , rnfmsk_z(jpk) , & |
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84 | & h_rnf (jpi,jpj) , nk_rnf (jpi,jpj) , & |
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85 | & rnf_tsc_b(jpi,jpj,jpts) , rnf_tsc (jpi,jpj,jpts) , STAT=sbc_rnf_alloc ) |
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86 | ! |
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87 | CALL mpp_sum ( 'sbcrnf', sbc_rnf_alloc ) |
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88 | IF( sbc_rnf_alloc > 0 ) CALL ctl_warn('sbc_rnf_alloc: allocation of arrays failed') |
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89 | END FUNCTION sbc_rnf_alloc |
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90 | |
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91 | |
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92 | SUBROUTINE sbc_rnf( kt ) |
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93 | !!---------------------------------------------------------------------- |
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94 | !! *** ROUTINE sbc_rnf *** |
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95 | !! |
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96 | !! ** Purpose : Introduce a climatological run off forcing |
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97 | !! |
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98 | !! ** Method : Set each river mouth with a monthly climatology |
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99 | !! provided from different data. |
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100 | !! CAUTION : upward water flux, runoff forced to be < 0 |
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101 | !! |
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102 | !! ** Action : runoff updated runoff field at time-step kt |
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103 | !!---------------------------------------------------------------------- |
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104 | INTEGER, INTENT(in) :: kt ! ocean time step |
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105 | ! |
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106 | INTEGER :: ji, jj ! dummy loop indices |
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107 | INTEGER :: z_err = 0 ! dummy integer for error handling |
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108 | !!---------------------------------------------------------------------- |
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109 | REAL(wp), DIMENSION(jpi,jpj) :: ztfrz ! freezing point used for temperature correction |
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110 | ! |
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111 | ! |
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112 | ! !-------------------! |
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113 | ! ! Update runoff ! |
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114 | ! !-------------------! |
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115 | ! |
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116 | ! |
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117 | IF( .NOT. l_rnfcpl ) THEN |
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118 | CALL fld_read ( kt, nn_fsbc, sf_rnf ) ! Read Runoffs data and provide it at kt ( runoffs + iceberg ) |
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119 | IF( ln_rnf_icb ) CALL fld_read ( kt, nn_fsbc, sf_i_rnf ) ! idem for iceberg flux if required |
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120 | ENDIF |
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121 | IF( ln_rnf_tem ) CALL fld_read ( kt, nn_fsbc, sf_t_rnf ) ! idem for runoffs temperature if required |
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122 | IF( ln_rnf_sal ) CALL fld_read ( kt, nn_fsbc, sf_s_rnf ) ! idem for runoffs salinity if required |
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123 | ! |
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124 | IF( MOD( kt - 1, nn_fsbc ) == 0 ) THEN |
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125 | ! |
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126 | IF( .NOT. l_rnfcpl ) THEN |
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127 | rnf(:,:) = rn_rfact * ( sf_rnf(1)%fnow(:,:,1) ) * tmask(:,:,1) ! updated runoff value at time step kt |
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128 | IF( ln_rnf_icb ) THEN |
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129 | fwficb(:,:) = rn_rfact * ( sf_i_rnf(1)%fnow(:,:,1) ) * tmask(:,:,1) ! updated runoff value at time step kt |
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130 | CALL iom_put( 'iceberg_cea' , fwficb(:,:) ) ! output iceberg flux |
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131 | CALL iom_put( 'hflx_icb_cea' , fwficb(:,:) * rLfus ) ! output Heat Flux into Sea Water due to Iceberg Thermodynamics --> |
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132 | ENDIF |
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133 | ENDIF |
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134 | ! |
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135 | ! ! set temperature & salinity content of runoffs |
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136 | IF( ln_rnf_tem ) THEN ! use runoffs temperature data |
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137 | rnf_tsc(:,:,jp_tem) = ( sf_t_rnf(1)%fnow(:,:,1) ) * rnf(:,:) * r1_rau0 |
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138 | CALL eos_fzp( sss_m(:,:), ztfrz(:,:) ) |
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139 | WHERE( sf_t_rnf(1)%fnow(:,:,1) == -999._wp ) ! if missing data value use SST as runoffs temperature |
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140 | rnf_tsc(:,:,jp_tem) = sst_m(:,:) * rnf(:,:) * r1_rau0 |
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141 | END WHERE |
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142 | ELSE ! use SST as runoffs temperature |
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143 | !CEOD River is fresh water so must at least be 0 unless we consider ice |
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144 | rnf_tsc(:,:,jp_tem) = MAX( sst_m(:,:), 0.0_wp ) * rnf(:,:) * r1_rau0 |
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145 | ENDIF |
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146 | ! ! use runoffs salinity data |
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147 | IF( ln_rnf_sal ) rnf_tsc(:,:,jp_sal) = ( sf_s_rnf(1)%fnow(:,:,1) ) * rnf(:,:) * r1_rau0 |
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148 | ! ! else use S=0 for runoffs (done one for all in the init) |
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149 | CALL iom_put( 'runoffs' , rnf(:,:) ) ! output runoff mass flux |
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150 | IF( iom_use('hflx_rnf_cea') ) CALL iom_put( 'hflx_rnf_cea', rnf_tsc(:,:,jp_tem) * rau0 * rcp ) ! output runoff sensible heat (W/m2) |
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151 | ENDIF |
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152 | ! |
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153 | ! ! ---------------------------------------- ! |
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154 | IF( kt == nit000 ) THEN ! set the forcing field at nit000 - 1 ! |
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155 | ! ! ---------------------------------------- ! |
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156 | IF( ln_rstart .AND. & !* Restart: read in restart file |
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157 | & iom_varid( numror, 'rnf_b', ldstop = .FALSE. ) > 0 ) THEN |
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158 | IF(lwp) WRITE(numout,*) ' nit000-1 runoff forcing fields red in the restart file', lrxios |
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159 | CALL iom_get( numror, jpdom_autoglo, 'rnf_b', rnf_b, ldxios = lrxios ) ! before runoff |
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160 | CALL iom_get( numror, jpdom_autoglo, 'rnf_hc_b', rnf_tsc_b(:,:,jp_tem), ldxios = lrxios ) ! before heat content of runoff |
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161 | CALL iom_get( numror, jpdom_autoglo, 'rnf_sc_b', rnf_tsc_b(:,:,jp_sal), ldxios = lrxios ) ! before salinity content of runoff |
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162 | ELSE !* no restart: set from nit000 values |
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163 | IF(lwp) WRITE(numout,*) ' nit000-1 runoff forcing fields set to nit000' |
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164 | rnf_b (:,: ) = rnf (:,: ) |
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165 | rnf_tsc_b(:,:,:) = rnf_tsc(:,:,:) |
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166 | ENDIF |
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167 | ENDIF |
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168 | ! ! ---------------------------------------- ! |
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169 | IF( lrst_oce ) THEN ! Write in the ocean restart file ! |
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170 | ! ! ---------------------------------------- ! |
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171 | IF(lwp) WRITE(numout,*) |
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172 | IF(lwp) WRITE(numout,*) 'sbcrnf : runoff forcing fields written in ocean restart file ', & |
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173 | & 'at it= ', kt,' date= ', ndastp |
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174 | IF(lwp) WRITE(numout,*) '~~~~' |
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175 | IF( lwxios ) CALL iom_swap( cwxios_context ) |
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176 | CALL iom_rstput( kt, nitrst, numrow, 'rnf_b' , rnf, ldxios = lwxios ) |
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177 | CALL iom_rstput( kt, nitrst, numrow, 'rnf_hc_b', rnf_tsc(:,:,jp_tem), ldxios = lwxios ) |
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178 | CALL iom_rstput( kt, nitrst, numrow, 'rnf_sc_b', rnf_tsc(:,:,jp_sal), ldxios = lwxios ) |
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179 | IF( lwxios ) CALL iom_swap( cxios_context ) |
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180 | ENDIF |
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181 | ! |
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182 | END SUBROUTINE sbc_rnf |
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183 | |
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184 | |
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185 | SUBROUTINE sbc_rnf_div( phdivn ) |
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186 | !!---------------------------------------------------------------------- |
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187 | !! *** ROUTINE sbc_rnf *** |
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188 | !! |
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189 | !! ** Purpose : update the horizontal divergence with the runoff inflow |
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190 | !! |
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191 | !! ** Method : |
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192 | !! CAUTION : rnf is positive (inflow) decreasing the |
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193 | !! divergence and expressed in m/s |
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194 | !! |
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195 | !! ** Action : phdivn decreased by the runoff inflow |
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196 | !!---------------------------------------------------------------------- |
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197 | REAL(wp), DIMENSION(:,:,:), INTENT(inout) :: phdivn ! horizontal divergence |
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198 | !! |
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199 | INTEGER :: ji, jj, jk ! dummy loop indices |
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200 | REAL(wp) :: zfact ! local scalar |
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201 | !!---------------------------------------------------------------------- |
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202 | ! |
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203 | zfact = 0.5_wp |
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204 | ! |
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205 | IF( ln_rnf_depth .OR. ln_rnf_depth_ini ) THEN !== runoff distributed over several levels ==! |
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206 | IF( ln_linssh ) THEN !* constant volume case : just apply the runoff input flow |
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207 | DO jj = 1, jpj |
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208 | DO ji = 1, jpi |
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209 | DO jk = 1, nk_rnf(ji,jj) |
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210 | phdivn(ji,jj,jk) = phdivn(ji,jj,jk) - ( rnf(ji,jj) + rnf_b(ji,jj) ) * zfact * r1_rau0 / h_rnf(ji,jj) |
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211 | END DO |
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212 | END DO |
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213 | END DO |
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214 | ELSE !* variable volume case |
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215 | DO jj = 1, jpj ! update the depth over which runoffs are distributed |
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216 | DO ji = 1, jpi |
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217 | h_rnf(ji,jj) = 0._wp |
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218 | DO jk = 1, nk_rnf(ji,jj) ! recalculates h_rnf to be the depth in metres |
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219 | h_rnf(ji,jj) = h_rnf(ji,jj) + e3t_n(ji,jj,jk) ! to the bottom of the relevant grid box |
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220 | END DO |
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221 | ! ! apply the runoff input flow |
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222 | DO jk = 1, nk_rnf(ji,jj) |
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223 | phdivn(ji,jj,jk) = phdivn(ji,jj,jk) - ( rnf(ji,jj) + rnf_b(ji,jj) ) * zfact * r1_rau0 / h_rnf(ji,jj) |
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224 | END DO |
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225 | END DO |
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226 | END DO |
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227 | ENDIF |
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228 | ELSE !== runoff put only at the surface ==! |
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229 | h_rnf (:,:) = e3t_n (:,:,1) ! update h_rnf to be depth of top box |
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230 | phdivn(:,:,1) = phdivn(:,:,1) - ( rnf(:,:) + rnf_b(:,:) ) * zfact * r1_rau0 / e3t_n(:,:,1) |
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231 | ENDIF |
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232 | ! |
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233 | END SUBROUTINE sbc_rnf_div |
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234 | |
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235 | |
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236 | SUBROUTINE sbc_rnf_init |
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237 | !!---------------------------------------------------------------------- |
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238 | !! *** ROUTINE sbc_rnf_init *** |
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239 | !! |
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240 | !! ** Purpose : Initialisation of the runoffs if (ln_rnf=T) |
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241 | !! |
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242 | !! ** Method : - read the runoff namsbc_rnf namelist |
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243 | !! |
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244 | !! ** Action : - read parameters |
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245 | !!---------------------------------------------------------------------- |
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246 | CHARACTER(len=32) :: rn_dep_file ! runoff file name |
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247 | INTEGER :: ji, jj, jk, jm ! dummy loop indices |
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248 | INTEGER :: ierror, inum ! temporary integer |
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249 | INTEGER :: ios ! Local integer output status for namelist read |
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250 | INTEGER :: nbrec ! temporary integer |
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251 | REAL(wp) :: zacoef |
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252 | REAL(wp), DIMENSION(jpi,jpj,2) :: zrnfcl |
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253 | !! |
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254 | NAMELIST/namsbc_rnf/ cn_dir , ln_rnf_depth, ln_rnf_tem, ln_rnf_sal, ln_rnf_icb, & |
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255 | & sn_rnf, sn_cnf , sn_i_rnf, sn_s_rnf , sn_t_rnf , sn_dep_rnf, & |
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256 | & ln_rnf_mouth , rn_hrnf , rn_avt_rnf, rn_rfact, & |
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257 | & ln_rnf_depth_ini , rn_dep_max , rn_rnf_max, nn_rnf_depth_file |
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258 | !!---------------------------------------------------------------------- |
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259 | ! |
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260 | ! !== allocate runoff arrays |
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261 | IF( sbc_rnf_alloc() /= 0 ) CALL ctl_stop( 'STOP', 'sbc_rnf_alloc : unable to allocate arrays' ) |
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262 | ! |
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263 | IF( .NOT. ln_rnf ) THEN ! no specific treatment in vicinity of river mouths |
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264 | ln_rnf_mouth = .FALSE. ! default definition needed for example by sbc_ssr or by tra_adv_muscl |
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265 | nkrnf = 0 |
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266 | rnf (:,:) = 0.0_wp |
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267 | rnf_b (:,:) = 0.0_wp |
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268 | rnfmsk (:,:) = 0.0_wp |
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269 | rnfmsk_z(:) = 0.0_wp |
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270 | RETURN |
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271 | ENDIF |
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272 | ! |
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273 | ! ! ============ |
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274 | ! ! Namelist |
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275 | ! ! ============ |
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276 | ! |
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277 | READ ( numnam_ref, namsbc_rnf, IOSTAT = ios, ERR = 901) |
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278 | 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namsbc_rnf in reference namelist' ) |
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279 | |
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280 | READ ( numnam_cfg, namsbc_rnf, IOSTAT = ios, ERR = 902 ) |
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281 | 902 IF( ios > 0 ) CALL ctl_nam ( ios , 'namsbc_rnf in configuration namelist' ) |
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282 | IF(lwm) WRITE ( numond, namsbc_rnf ) |
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283 | ! |
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284 | ! ! Control print |
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285 | IF(lwp) THEN |
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286 | WRITE(numout,*) |
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287 | WRITE(numout,*) 'sbc_rnf_init : runoff ' |
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288 | WRITE(numout,*) '~~~~~~~~~~~~ ' |
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289 | WRITE(numout,*) ' Namelist namsbc_rnf' |
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290 | WRITE(numout,*) ' specific river mouths treatment ln_rnf_mouth = ', ln_rnf_mouth |
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291 | WRITE(numout,*) ' river mouth additional Kz rn_avt_rnf = ', rn_avt_rnf |
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292 | WRITE(numout,*) ' depth of river mouth additional mixing rn_hrnf = ', rn_hrnf |
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293 | WRITE(numout,*) ' multiplicative factor for runoff rn_rfact = ', rn_rfact |
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294 | ENDIF |
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295 | ! ! ================== |
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296 | ! ! Type of runoff |
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297 | ! ! ================== |
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298 | ! |
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299 | IF( .NOT. l_rnfcpl ) THEN |
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300 | ALLOCATE( sf_rnf(1), STAT=ierror ) ! Create sf_rnf structure (runoff inflow) |
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301 | IF(lwp) WRITE(numout,*) |
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302 | IF(lwp) WRITE(numout,*) ' ==>>> runoffs inflow read in a file' |
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303 | IF( ierror > 0 ) THEN |
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304 | CALL ctl_stop( 'sbc_rnf_init: unable to allocate sf_rnf structure' ) ; RETURN |
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305 | ENDIF |
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306 | ALLOCATE( sf_rnf(1)%fnow(jpi,jpj,1) ) |
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307 | IF( sn_rnf%ln_tint ) ALLOCATE( sf_rnf(1)%fdta(jpi,jpj,1,2) ) |
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308 | CALL fld_fill( sf_rnf, (/ sn_rnf /), cn_dir, 'sbc_rnf_init', 'read runoffs data', 'namsbc_rnf', no_print ) |
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309 | ! |
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310 | IF( ln_rnf_icb ) THEN ! Create (if required) sf_i_rnf structure |
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311 | IF(lwp) WRITE(numout,*) |
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312 | IF(lwp) WRITE(numout,*) ' iceberg flux read in a file' |
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313 | ALLOCATE( sf_i_rnf(1), STAT=ierror ) |
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314 | IF( ierror > 0 ) THEN |
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315 | CALL ctl_stop( 'sbc_rnf_init: unable to allocate sf_i_rnf structure' ) ; RETURN |
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316 | ENDIF |
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317 | ALLOCATE( sf_i_rnf(1)%fnow(jpi,jpj,1) ) |
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318 | IF( sn_i_rnf%ln_tint ) ALLOCATE( sf_i_rnf(1)%fdta(jpi,jpj,1,2) ) |
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319 | CALL fld_fill (sf_i_rnf, (/ sn_i_rnf /), cn_dir, 'sbc_rnf_init', 'read iceberg flux data', 'namsbc_rnf' ) |
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320 | ELSE |
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321 | fwficb(:,:) = 0._wp |
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322 | ENDIF |
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323 | |
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324 | ENDIF |
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325 | ! |
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326 | IF( ln_rnf_tem ) THEN ! Create (if required) sf_t_rnf structure |
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327 | IF(lwp) WRITE(numout,*) |
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328 | IF(lwp) WRITE(numout,*) ' ==>>> runoffs temperatures read in a file' |
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329 | ALLOCATE( sf_t_rnf(1), STAT=ierror ) |
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330 | IF( ierror > 0 ) THEN |
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331 | CALL ctl_stop( 'sbc_rnf_init: unable to allocate sf_t_rnf structure' ) ; RETURN |
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332 | ENDIF |
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333 | ALLOCATE( sf_t_rnf(1)%fnow(jpi,jpj,1) ) |
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334 | IF( sn_t_rnf%ln_tint ) ALLOCATE( sf_t_rnf(1)%fdta(jpi,jpj,1,2) ) |
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335 | CALL fld_fill (sf_t_rnf, (/ sn_t_rnf /), cn_dir, 'sbc_rnf_init', 'read runoff temperature data', 'namsbc_rnf', no_print ) |
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336 | ENDIF |
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337 | ! |
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338 | IF( ln_rnf_sal ) THEN ! Create (if required) sf_s_rnf and sf_t_rnf structures |
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339 | IF(lwp) WRITE(numout,*) |
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340 | IF(lwp) WRITE(numout,*) ' ==>>> runoffs salinities read in a file' |
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341 | ALLOCATE( sf_s_rnf(1), STAT=ierror ) |
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342 | IF( ierror > 0 ) THEN |
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343 | CALL ctl_stop( 'sbc_rnf_init: unable to allocate sf_s_rnf structure' ) ; RETURN |
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344 | ENDIF |
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345 | ALLOCATE( sf_s_rnf(1)%fnow(jpi,jpj,1) ) |
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346 | IF( sn_s_rnf%ln_tint ) ALLOCATE( sf_s_rnf(1)%fdta(jpi,jpj,1,2) ) |
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347 | CALL fld_fill (sf_s_rnf, (/ sn_s_rnf /), cn_dir, 'sbc_rnf_init', 'read runoff salinity data', 'namsbc_rnf', no_print ) |
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348 | ENDIF |
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349 | ! |
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350 | IF( ln_rnf_depth ) THEN ! depth of runoffs set from a file |
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351 | IF(lwp) WRITE(numout,*) |
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352 | IF(lwp) WRITE(numout,*) ' ==>>> runoffs depth read in a file' |
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353 | rn_dep_file = TRIM( cn_dir )//TRIM( sn_dep_rnf%clname ) |
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354 | IF( .NOT. sn_dep_rnf%ln_clim ) THEN ; WRITE(rn_dep_file, '(a,"_y",i4)' ) TRIM( rn_dep_file ), nyear ! add year |
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355 | IF( sn_dep_rnf%cltype == 'monthly' ) WRITE(rn_dep_file, '(a,"m",i2)' ) TRIM( rn_dep_file ), nmonth ! add month |
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356 | ENDIF |
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357 | CALL iom_open ( rn_dep_file, inum ) ! open file |
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358 | CALL iom_get ( inum, jpdom_data, sn_dep_rnf%clvar, h_rnf ) ! read the river mouth array |
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359 | CALL iom_close( inum ) ! close file |
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360 | ! |
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361 | nk_rnf(:,:) = 0 ! set the number of level over which river runoffs are applied |
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362 | DO jj = 1, jpj |
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363 | DO ji = 1, jpi |
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364 | IF( h_rnf(ji,jj) > 0._wp ) THEN |
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365 | jk = 2 |
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366 | DO WHILE ( jk < mbkt(ji,jj) .AND. gdept_0(ji,jj,jk) < h_rnf(ji,jj) ) ; jk = jk + 1 |
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367 | END DO |
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368 | nk_rnf(ji,jj) = jk |
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369 | ELSEIF( h_rnf(ji,jj) == -1._wp ) THEN ; nk_rnf(ji,jj) = 1 |
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370 | ELSEIF( h_rnf(ji,jj) == -999._wp ) THEN ; nk_rnf(ji,jj) = mbkt(ji,jj) |
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371 | ELSE |
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372 | CALL ctl_stop( 'sbc_rnf_init: runoff depth not positive, and not -999 or -1, rnf value in file fort.999' ) |
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373 | WRITE(999,*) 'ji, jj, h_rnf(ji,jj) :', ji, jj, h_rnf(ji,jj) |
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374 | ENDIF |
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375 | END DO |
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376 | END DO |
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377 | DO jj = 1, jpj ! set the associated depth |
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378 | DO ji = 1, jpi |
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379 | h_rnf(ji,jj) = 0._wp |
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380 | DO jk = 1, nk_rnf(ji,jj) |
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381 | h_rnf(ji,jj) = h_rnf(ji,jj) + e3t_n(ji,jj,jk) |
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382 | END DO |
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383 | END DO |
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384 | END DO |
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385 | ! |
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386 | ELSE IF( ln_rnf_depth_ini ) THEN ! runoffs applied at the surface |
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387 | ! |
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388 | IF(lwp) WRITE(numout,*) |
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389 | IF(lwp) WRITE(numout,*) ' ==>>> depth of runoff computed once from max value of runoff' |
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390 | IF(lwp) WRITE(numout,*) ' max value of the runoff climatologie (over global domain) rn_rnf_max = ', rn_rnf_max |
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391 | IF(lwp) WRITE(numout,*) ' depth over which runoffs is spread rn_dep_max = ', rn_dep_max |
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392 | IF(lwp) WRITE(numout,*) ' create (=1) a runoff depth file or not (=0) nn_rnf_depth_file = ', nn_rnf_depth_file |
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393 | |
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394 | CALL iom_open( TRIM( sn_rnf%clname ), inum ) ! open runoff file |
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395 | nbrec = iom_getszuld( inum ) |
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396 | zrnfcl(:,:,1) = 0._wp ! init the max to 0. in 1 |
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397 | DO jm = 1, nbrec |
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398 | CALL iom_get( inum, jpdom_data, TRIM( sn_rnf%clvar ), zrnfcl(:,:,2), jm ) ! read the value in 2 |
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399 | zrnfcl(:,:,1) = MAXVAL( zrnfcl(:,:,:), DIM=3 ) ! store the maximum value in time in 1 |
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400 | END DO |
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401 | CALL iom_close( inum ) |
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402 | ! |
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403 | h_rnf(:,:) = 1. |
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404 | ! |
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405 | zacoef = rn_dep_max / rn_rnf_max ! coef of linear relation between runoff and its depth (150m for max of runoff) |
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406 | ! |
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407 | WHERE( zrnfcl(:,:,1) > 0._wp ) h_rnf(:,:) = zacoef * zrnfcl(:,:,1) ! compute depth for all runoffs |
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408 | ! |
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409 | DO jj = 1, jpj ! take in account min depth of ocean rn_hmin |
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410 | DO ji = 1, jpi |
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411 | IF( zrnfcl(ji,jj,1) > 0._wp ) THEN |
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412 | jk = mbkt(ji,jj) |
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413 | h_rnf(ji,jj) = MIN( h_rnf(ji,jj), gdept_0(ji,jj,jk ) ) |
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414 | ENDIF |
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415 | END DO |
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416 | END DO |
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417 | ! |
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418 | nk_rnf(:,:) = 0 ! number of levels on which runoffs are distributed |
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419 | DO jj = 1, jpj |
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420 | DO ji = 1, jpi |
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421 | IF( zrnfcl(ji,jj,1) > 0._wp ) THEN |
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422 | jk = 2 |
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423 | DO WHILE ( jk < mbkt(ji,jj) .AND. gdept_0(ji,jj,jk) < h_rnf(ji,jj) ) ; jk = jk + 1 |
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424 | END DO |
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425 | nk_rnf(ji,jj) = jk |
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426 | ELSE |
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427 | nk_rnf(ji,jj) = 1 |
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428 | ENDIF |
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429 | END DO |
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430 | END DO |
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431 | ! |
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432 | DO jj = 1, jpj ! set the associated depth |
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433 | DO ji = 1, jpi |
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434 | h_rnf(ji,jj) = 0._wp |
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435 | DO jk = 1, nk_rnf(ji,jj) |
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436 | h_rnf(ji,jj) = h_rnf(ji,jj) + e3t_n(ji,jj,jk) |
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437 | END DO |
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438 | END DO |
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439 | END DO |
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440 | ! |
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441 | IF( nn_rnf_depth_file == 1 ) THEN ! save output nb levels for runoff |
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442 | IF(lwp) WRITE(numout,*) ' ==>>> create runoff depht file' |
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443 | CALL iom_open ( TRIM( sn_dep_rnf%clname ), inum, ldwrt = .TRUE. ) |
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444 | CALL iom_rstput( 0, 0, inum, 'rodepth', h_rnf ) |
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445 | CALL iom_close ( inum ) |
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446 | ENDIF |
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447 | ELSE ! runoffs applied at the surface |
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448 | nk_rnf(:,:) = 1 |
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449 | h_rnf (:,:) = e3t_n(:,:,1) |
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450 | ENDIF |
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451 | ! |
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452 | rnf(:,:) = 0._wp ! runoff initialisation |
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453 | rnf_tsc(:,:,:) = 0._wp ! runoffs temperature & salinty contents initilisation |
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454 | ! |
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455 | ! ! ======================== |
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456 | ! ! River mouth vicinity |
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457 | ! ! ======================== |
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458 | ! |
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459 | IF( ln_rnf_mouth ) THEN ! Specific treatment in vicinity of river mouths : |
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460 | ! ! - Increase Kz in surface layers ( rn_hrnf > 0 ) |
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461 | ! ! - set to zero SSS damping (ln_ssr=T) |
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462 | ! ! - mixed upstream-centered (ln_traadv_cen2=T) |
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463 | ! |
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464 | IF( ln_rnf_depth ) CALL ctl_warn( 'sbc_rnf_init: increased mixing turned on but effects may already', & |
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465 | & 'be spread through depth by ln_rnf_depth' ) |
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466 | ! |
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467 | nkrnf = 0 ! Number of level over which Kz increase |
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468 | IF( rn_hrnf > 0._wp ) THEN |
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469 | nkrnf = 2 |
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470 | DO WHILE( nkrnf /= jpkm1 .AND. gdepw_1d(nkrnf+1) < rn_hrnf ) ; nkrnf = nkrnf + 1 |
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471 | END DO |
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472 | IF( ln_sco ) CALL ctl_warn( 'sbc_rnf_init: number of levels over which Kz is increased is computed for zco...' ) |
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473 | ENDIF |
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474 | IF(lwp) WRITE(numout,*) |
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475 | IF(lwp) WRITE(numout,*) ' ==>>> Specific treatment used in vicinity of river mouths :' |
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476 | IF(lwp) WRITE(numout,*) ' - Increase Kz in surface layers (if rn_hrnf > 0 )' |
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477 | IF(lwp) WRITE(numout,*) ' by ', rn_avt_rnf,' m2/s over ', nkrnf, ' w-levels' |
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478 | IF(lwp) WRITE(numout,*) ' - set to zero SSS damping (if ln_ssr=T)' |
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479 | IF(lwp) WRITE(numout,*) ' - mixed upstream-centered (if ln_traadv_cen2=T)' |
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480 | ! |
---|
481 | CALL rnf_mouth ! set river mouth mask |
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482 | ! |
---|
483 | ELSE ! No treatment at river mouths |
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484 | IF(lwp) WRITE(numout,*) |
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485 | IF(lwp) WRITE(numout,*) ' ==>>> No specific treatment at river mouths' |
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486 | rnfmsk (:,:) = 0._wp |
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487 | rnfmsk_z(:) = 0._wp |
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488 | nkrnf = 0 |
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489 | ENDIF |
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490 | ! |
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491 | IF( lwxios ) THEN |
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492 | CALL iom_set_rstw_var_active('rnf_b') |
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493 | CALL iom_set_rstw_var_active('rnf_hc_b') |
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494 | CALL iom_set_rstw_var_active('rnf_sc_b') |
---|
495 | ENDIF |
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496 | |
---|
497 | END SUBROUTINE sbc_rnf_init |
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498 | |
---|
499 | |
---|
500 | SUBROUTINE rnf_mouth |
---|
501 | !!---------------------------------------------------------------------- |
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502 | !! *** ROUTINE rnf_mouth *** |
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503 | !! |
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504 | !! ** Purpose : define the river mouths mask |
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505 | !! |
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506 | !! ** Method : read the river mouth mask (=0/1) in the river runoff |
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507 | !! climatological file. Defined a given vertical structure. |
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508 | !! CAUTION, the vertical structure is hard coded on the |
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509 | !! first 5 levels. |
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510 | !! This fields can be used to: |
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511 | !! - set an upstream advection scheme |
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512 | !! (ln_rnf_mouth=T and ln_traadv_cen2=T) |
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513 | !! - increase vertical on the top nn_krnf vertical levels |
---|
514 | !! at river runoff input grid point (nn_krnf>=2, see step.F90) |
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515 | !! - set to zero SSS restoring flux at river mouth grid points |
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516 | !! |
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517 | !! ** Action : rnfmsk set to 1 at river runoff input, 0 elsewhere |
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518 | !! rnfmsk_z vertical structure |
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519 | !!---------------------------------------------------------------------- |
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520 | INTEGER :: inum ! temporary integers |
---|
521 | CHARACTER(len=140) :: cl_rnfile ! runoff file name |
---|
522 | !!---------------------------------------------------------------------- |
---|
523 | ! |
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524 | IF(lwp) WRITE(numout,*) |
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525 | IF(lwp) WRITE(numout,*) ' rnf_mouth : river mouth mask' |
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526 | IF(lwp) WRITE(numout,*) ' ~~~~~~~~~ ' |
---|
527 | ! |
---|
528 | cl_rnfile = TRIM( cn_dir )//TRIM( sn_cnf%clname ) |
---|
529 | IF( .NOT. sn_cnf%ln_clim ) THEN ; WRITE(cl_rnfile, '(a,"_y",i4)' ) TRIM( cl_rnfile ), nyear ! add year |
---|
530 | IF( sn_cnf%cltype == 'monthly' ) WRITE(cl_rnfile, '(a,"m",i2)' ) TRIM( cl_rnfile ), nmonth ! add month |
---|
531 | ENDIF |
---|
532 | ! |
---|
533 | ! horizontal mask (read in NetCDF file) |
---|
534 | CALL iom_open ( cl_rnfile, inum ) ! open file |
---|
535 | CALL iom_get ( inum, jpdom_data, sn_cnf%clvar, rnfmsk ) ! read the river mouth array |
---|
536 | CALL iom_close( inum ) ! close file |
---|
537 | ! |
---|
538 | IF( l_clo_rnf ) CALL clo_rnf( rnfmsk ) ! closed sea inflow set as river mouth |
---|
539 | ! |
---|
540 | rnfmsk_z(:) = 0._wp ! vertical structure |
---|
541 | rnfmsk_z(1) = 1.0 |
---|
542 | rnfmsk_z(2) = 1.0 ! ********** |
---|
543 | rnfmsk_z(3) = 0.5 ! HARD CODED on the 5 first levels |
---|
544 | rnfmsk_z(4) = 0.25 ! ********** |
---|
545 | rnfmsk_z(5) = 0.125 |
---|
546 | ! |
---|
547 | END SUBROUTINE rnf_mouth |
---|
548 | |
---|
549 | !!====================================================================== |
---|
550 | END MODULE sbcrnf |
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