- Timestamp:
- 2010-10-12T15:53:09+02:00 (14 years ago)
- File:
-
- 1 edited
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branches/DEV_r2191_3partymerge2010/NEMO/LIM_SRC_2/limdyn_2.F90
r2219 r2222 8 8 !! 2.0 ! 03-08 (C. Ethe) add lim_dyn_init 9 9 !! 2.0 ! 06-07 (G. Madec) Surface module 10 !! 3.3 ! 09-05 (G.Garric, C. Bricaud) addition of the lim2_evp case 10 11 !!--------------------------------------------------------------------- 11 12 #if defined key_lim2 … … 16 17 !! lim_dyn_init_2 : initialization and namelist read 17 18 !!---------------------------------------------------------------------- 18 USE dom_oce ! ocean space and time domain 19 USE sbc_oce ! 20 USE phycst ! 21 USE ice_2 ! 22 USE dom_ice_2 ! 23 USE limistate_2 ! 24 USE limrhg_2 ! ice rheology 25 26 USE lbclnk ! 27 USE lib_mpp ! 28 USE in_out_manager ! I/O manager 29 USE prtctl ! Print control 19 USE dom_oce ! ocean domain 20 USE sbc_oce ! surface boundary condition variables 21 USE phycst ! physical constant 22 USE ice_2 ! LIM2: ice variables 23 USE dom_ice_2 ! LIM2: ice domain 24 USE limistate_2 ! LIM2: ice initial state 25 #if defined key_lim2_vp 26 USE limrhg_2 ! LIM2: VP ice rheology 27 #else 28 USE limrhg ! LIM : EVP ice rheology 29 #endif 30 USE lbclnk ! lateral boundary condition - MPP exchanges 31 USE lib_mpp ! MPP library 32 USE in_out_manager ! I/O manager 33 USE prtctl ! Print control 30 34 31 35 IMPLICIT NONE 32 36 PRIVATE 33 37 34 PUBLIC lim_dyn_2 ! routine called by sbc_ice_lim 35 36 !! * Module variables 37 REAL(wp) :: rone = 1.e0 ! constant value 38 PUBLIC lim_dyn_2 ! routine called by sbc_ice_lim module 39 40 REAL(wp) :: rone = 1.e0 ! constant value 38 41 39 42 # include "vectopt_loop_substitute.h90" 40 43 !!---------------------------------------------------------------------- 41 !! LIM 2.0, UCL-LOCEAN-IPSL (2006)44 !! NEMO/LIM2 3.3, UCL-LOCEAN-IPSL (2010) 42 45 !! $Id$ 43 46 !! Software governed by the CeCILL licence (NEMOGCM/License_CeCILL.txt) 44 47 !!---------------------------------------------------------------------- 45 46 48 CONTAINS 47 49 … … 71 73 IF( kt == nit000 ) CALL lim_dyn_init_2 ! Initialization (first time-step only) 72 74 73 IF( ln_limdyn ) THEN 74 ! 75 ! Mean ice and snow thicknesses.76 hsnm(:,:) = ( 1.0 - frld(:,:) ) * hsnif(:,:) 75 IF( ln_limdyn ) THEN ! Rheology (ice dynamics) 76 ! ! ======== 77 ! 78 hsnm(:,:) = ( 1.0 - frld(:,:) ) * hsnif(:,:) ! Mean ice and snow thicknesses 77 79 hicm(:,:) = ( 1.0 - frld(:,:) ) * hicif(:,:) 78 80 ! 79 ! ! Rheology (ice dynamics) 80 ! ! ======== 81 ! ! Define the j-limits where ice rheology is computed 81 82 82 83 ! Define the j-limits where ice rheology is computed … … 87 88 i_jpj = jpj 88 89 IF(ln_ctl) CALL prt_ctl_info( 'lim_dyn : i_j1 = ', ivar1=i_j1, clinfo2=' ij_jpj = ', ivar2=i_jpj ) 89 CALL lim_rhg_2( i_j1, i_jpj ) 90 #if defined key_lim2_vp 91 CALL lim_rhg_2( i_j1, i_jpj ) ! VP rheology 92 #else 93 CALL lim_rhg ( i_j1, i_jpj ) ! EVP rheology 94 #endif 95 ELSE !== optimization of the computational area ==! 96 DO jj = 1, jpj 97 zind(jj) = SUM( frld (:,jj ) ) ! = FLOAT(jpj) if ocean everywhere on a j-line 98 zmsk(jj) = SUM( tmask(:,jj,1) ) ! = 0 if land everywhere on a j-line 99 END DO 90 100 ! 91 ELSE ! optimization of the computational area 92 ! 93 DO jj = 1, jpj 94 zind(jj) = SUM( frld (:,jj ) ) ! = FLOAT(jpj) if ocean everywhere on a j-line 95 zmsk(jj) = SUM( tmask(:,jj,1) ) ! = 0 if land everywhere on a j-line 96 END DO 97 ! 98 IF( l_jeq ) THEN ! local domain include both hemisphere 99 ! ! Rheology is computed in each hemisphere 100 ! ! only over the ice cover latitude strip 101 ! Northern hemisphere 102 i_j1 = njeq 101 IF( l_jeq ) THEN ! local domain include both hemisphere: rheology is computed 102 ! ! in each hemisphere only over the ice cover latitude strip 103 i_j1 = njeq ! Northern hemisphere 103 104 i_jpj = jpj 104 105 DO WHILE ( i_j1 <= jpj .AND. zind(i_j1) == FLOAT(jpi) .AND. zmsk(i_j1) /=0 ) 105 106 i_j1 = i_j1 + 1 106 107 END DO 108 #if defined key_lim2_vp 107 109 i_j1 = MAX( 1, i_j1-1 ) 108 110 IF(ln_ctl) WRITE(numout,*) 'lim_dyn : NH i_j1 = ', i_j1, ' ij_jpj = ', i_jpj 109 111 ! 110 112 CALL lim_rhg_2( i_j1, i_jpj ) 111 ! 112 ! Southern hemisphere 113 i_j1 = 1 113 #else 114 i_j1 = MAX( 1, i_j1-2 ) 115 IF(ln_ctl) WRITE(numout,*) 'lim_dyn : NH i_j1 = ', i_j1, ' ij_jpj = ', i_jpj 116 CALL lim_rhg( i_j1, i_jpj ) 117 #endif 118 i_j1 = 1 ! Southern hemisphere 114 119 i_jpj = njeq 115 120 DO WHILE ( i_jpj >= 1 .AND. zind(i_jpj) == FLOAT(jpi) .AND. zmsk(i_jpj) /=0 ) 116 121 i_jpj = i_jpj - 1 117 122 END DO 123 #if defined key_lim2_vp 118 124 i_jpj = MIN( jpj, i_jpj+2 ) 119 125 IF(ln_ctl) WRITE(numout,*) 'lim_dyn : SH i_j1 = ', i_j1, ' ij_jpj = ', i_jpj 120 126 ! 121 127 CALL lim_rhg_2( i_j1, i_jpj ) 128 #else 129 i_jpj = MIN( jpj, i_jpj+1 ) 130 IF(ln_ctl) WRITE(numout,*) 'lim_dyn : SH i_j1 = ', i_j1, ' ij_jpj = ', i_jpj 131 CALL lim_rhg( i_j1, i_jpj ) !!!!cbr CALL lim_rhg( i_j1, i_jpj, kt ) 132 #endif 122 133 ! 123 ELSE ! local domain extends over one hemisphere only 124 ! ! Rheology is computed only over the ice cover 125 ! ! latitude strip 134 ELSE ! local domain extends over one hemisphere only: rheology is 135 ! ! computed only over the ice cover latitude strip 126 136 i_j1 = 1 127 137 DO WHILE ( i_j1 <= jpj .AND. zind(i_j1) == FLOAT(jpi) .AND. zmsk(i_j1) /=0 ) … … 129 139 END DO 130 140 i_j1 = MAX( 1, i_j1-1 ) 131 132 141 i_jpj = jpj 133 142 DO WHILE ( i_jpj >= 1 .AND. zind(i_jpj) == FLOAT(jpi) .AND. zmsk(i_jpj) /=0 ) 134 143 i_jpj = i_jpj - 1 135 144 END DO 145 IF(ln_ctl) WRITE(numout,*) 'lim_dyn : one hemisphere: i_j1 = ', i_j1, ' ij_jpj = ', i_jpj 146 #if defined key_lim2_vp 136 147 i_jpj = MIN( jpj, i_jpj+2) 137 138 IF(ln_ctl) WRITE(numout,*) 'lim_dyn : one hemisphere: i_j1 = ', i_j1, ' ij_jpj = ', i_jpj 139 ! 140 CALL lim_rhg_2( i_j1, i_jpj ) 148 CALL lim_rhg_2( i_j1, i_jpj ) ! VP rheology 149 #else 150 i_j1 = MAX( 1, i_j1-2 ) 151 i_jpj = MIN( jpj, i_jpj+1) 152 CALL lim_rhg ( i_j1, i_jpj ) ! EVP rheology 153 #endif 141 154 ! 142 155 ENDIF 143 156 ! 144 157 ENDIF 145 158 ! 146 159 IF(ln_ctl) CALL prt_ctl(tab2d_1=u_ice , clinfo1=' lim_dyn : u_ice :', tab2d_2=v_ice , clinfo2=' v_ice :') 160 ! 147 161 148 ! computation of friction velocity 149 ! -------------------------------- 150 ! ice-ocean velocity at U & V-points (u_ice v_ice at I-point ; ssu_m, ssv_m at U- & V-points) 151 152 DO jj = 1, jpjm1 153 DO ji = 1, jpim1 ! NO vector opt. 154 zu_io(ji,jj) = 0.5 * ( u_ice(ji+1,jj+1) + u_ice(ji+1,jj ) ) - ssu_m(ji,jj) 155 zv_io(ji,jj) = 0.5 * ( v_ice(ji+1,jj+1) + v_ice(ji ,jj+1) ) - ssv_m(ji,jj) 156 END DO 157 END DO 158 ! frictional velocity at T-point 159 DO jj = 2, jpjm1 162 ! ! friction velocity 163 ! ! ================= 164 SELECT CASE( cl_grid ) 165 CASE( 'C' ) ! C-grid ice dynamics (EVP) 166 zu_io(:,:) = u_ice(:,:) - ssu_m(:,:) ! ice-ocean & ice velocity at ocean velocity points 167 zv_io(:,:) = v_ice(:,:) - ssv_m(:,:) 168 ! 169 CASE( 'B' ) ! B-grid ice dynamics (VP) 170 DO jj = 1, jpjm1 ! ice velocity at I-point, ice-ocean velocity at ocean points 171 DO ji = 1, jpim1 ! NO vector opt. 172 zu_io(ji,jj) = 0.5 * ( u_ice(ji+1,jj+1) + u_ice(ji+1,jj ) ) - ssu_m(ji,jj) 173 zv_io(ji,jj) = 0.5 * ( v_ice(ji+1,jj+1) + v_ice(ji ,jj+1) ) - ssv_m(ji,jj) 174 END DO 175 END DO 176 END SELECT 177 ! 178 DO jj = 2, jpjm1 ! frictional velocity at T-point 160 179 DO ji = 2, jpim1 ! NO vector opt. because of zu_io 161 180 ust2s(ji,jj) = 0.5 * cw & … … 165 184 END DO 166 185 ! 167 ELSE ! no ice dynamics : transmit directly the atmospheric stress to the ocean168 ! 186 ELSE ! no ice dynamics : transmit directly the atmospheric stress to the ocean 187 ! ! =============== 169 188 zcoef = SQRT( 0.5 ) / rau0 170 189 DO jj = 2, jpjm1 … … 177 196 ENDIF 178 197 ! 179 CALL lbc_lnk( ust2s, 'T', 1. ) ! T-point198 CALL lbc_lnk( ust2s, 'T', 1. ) ! lateral boundary condition 180 199 ! 181 200 IF(ln_ctl) CALL prt_ctl(tab2d_1=ust2s , clinfo1=' lim_dyn : ust2s :') 182 201 ! 183 202 END SUBROUTINE lim_dyn_2 184 203 … … 188 207 !! *** ROUTINE lim_dyn_init_2 *** 189 208 !! 190 !! ** Purpose : Physical constants and parameters linked to the ice 191 !! dynamics 192 !! 193 !! ** Method : Read the namicedyn namelist and check the ice-dynamic 194 !! parameter values 209 !! ** Purpose : initialisation of the ice dynamics variables 210 !! 211 !! ** Method : Read the namicedyn namelist and check their values 195 212 !! 196 213 !! ** input : Namelist namicedyn 197 214 !!------------------------------------------------------------------- 198 NAMELIST/namicedyn/ epsd, alpha, & 199 & dm, nbiter, nbitdr, om, resl, cw, angvg, pstar, & 200 & c_rhg, etamn, creepl, ecc, ahi0 201 !!------------------------------------------------------------------- 202 215 NAMELIST/namicedyn/ epsd, alpha, dm, nbiter, nbitdr, om, resl, cw, angvg, pstar, & 216 & c_rhg, etamn, creepl, ecc, ahi0, nevp, telast, alphaevp 217 !!------------------------------------------------------------------- 218 ! 203 219 REWIND ( numnam_ice ) ! Read Namelist namicedyn 204 220 READ ( numnam_ice , namicedyn ) 205 221 ! 206 222 IF(lwp) THEN ! Control print 207 223 WRITE(numout,*) … … 223 239 WRITE(numout,*) ' eccentricity of the elliptical yield curve ecc = ', ecc 224 240 WRITE(numout,*) ' horizontal diffusivity coeff. for sea-ice ahi0 = ', ahi0 241 WRITE(numout,*) ' number of iterations for subcycling nevp = ', nevp 242 WRITE(numout,*) ' timescale for elastic waves telast = ', telast 243 WRITE(numout,*) ' coefficient for the solution of int. stresses alphaevp = ', alphaevp 225 244 ENDIF 226 245 ! 227 246 ! Initialization 228 247 usecc2 = 1.0 / ( ecc * ecc ) … … 240 259 #else 241 260 !!---------------------------------------------------------------------- 242 !! Default option Empty module NO LIM 2.0 sea-ice model261 !! Default option Dummy module NO LIM 2.0 sea-ice model 243 262 !!---------------------------------------------------------------------- 244 263 CONTAINS 245 SUBROUTINE lim_dyn_2 ! Empty routine264 SUBROUTINE lim_dyn_2 ! Dummy routine 246 265 END SUBROUTINE lim_dyn_2 247 266 #endif
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