- Timestamp:
- 2018-12-19T20:46:30+01:00 (5 years ago)
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- 1 edited
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NEMO/branches/2018/dev_r10164_HPC09_ESIWACE_PREP_MERGE/src/ICE/icedyn.F90
r10170 r10419 21 21 USE icecor ! sea-ice: corrections 22 22 USE icevar ! sea-ice: operations 23 USE icectl ! sea-ice: control prints 23 24 ! 24 25 USE in_out_manager ! I/O manager … … 37 38 INTEGER :: nice_dyn ! choice of the type of dynamics 38 39 ! ! associated indices: 39 INTEGER, PARAMETER :: np_dyn FULL= 1 ! full ice dynamics (rheology + advection + ridging/rafting + correction)40 INTEGER, PARAMETER :: np_dynALL = 1 ! full ice dynamics (rheology + advection + ridging/rafting + correction) 40 41 INTEGER, PARAMETER :: np_dynRHGADV = 2 ! pure dynamics (rheology + advection) 41 INTEGER, PARAMETER :: np_dynADV = 3 ! only advection w prescribed vel.(rn_uvice + advection) 42 INTEGER, PARAMETER :: np_dynADV1D = 3 ! only advection 1D - test case from Schar & Smolarkiewicz 1996 43 INTEGER, PARAMETER :: np_dynADV2D = 4 ! only advection 2D w prescribed vel.(rn_uvice + advection) 42 44 ! 43 45 ! ** namelist (namdyn) ** 44 LOGICAL :: ln_dynFULL ! full ice dynamics (rheology + advection + ridging/rafting + correction) 45 LOGICAL :: ln_dynRHGADV ! no ridge/raft & no corrections (rheology + advection) 46 LOGICAL :: ln_dynADV ! only advection w prescribed vel.(rn_uvice + advection) 47 REAL(wp) :: rn_uice ! prescribed u-vel (case np_dynADV) 48 REAL(wp) :: rn_vice ! prescribed v-vel (case np_dynADV) 46 LOGICAL :: ln_dynALL ! full ice dynamics (rheology + advection + ridging/rafting + correction) 47 LOGICAL :: ln_dynRHGADV ! no ridge/raft & no corrections (rheology + advection) 48 LOGICAL :: ln_dynADV1D ! only advection in 1D w ice convergence (test case from Schar & Smolarkiewicz 1996) 49 LOGICAL :: ln_dynADV2D ! only advection in 2D w prescribed vel. (rn_uvice + advection) 50 REAL(wp) :: rn_uice ! prescribed u-vel (case np_dynADV1D & np_dynADV2D) 51 REAL(wp) :: rn_vice ! prescribed v-vel (case np_dynADV1D & np_dynADV2D) 49 52 50 53 !! * Substitutions … … 53 56 !! NEMO/ICE 4.0 , NEMO Consortium (2018) 54 57 !! $Id$ 55 !! Software governed by the CeCILL licen se (see./LICENSE)58 !! Software governed by the CeCILL licence (./LICENSE) 56 59 !!---------------------------------------------------------------------- 57 60 CONTAINS … … 71 74 INTEGER, INTENT(in) :: kt ! ice time step 72 75 !! 73 INTEGER :: ji, jj, jl ! dummy loop indices 74 REAL(wp), DIMENSION(jpi,jpj,jpl) :: zhmax 76 INTEGER :: ji, jj, jl ! dummy loop indices 77 REAL(wp) :: zcoefu, zcoefv 78 REAL(wp), DIMENSION(jpi,jpj,jpl) :: zhi_max, zhs_max, zhip_max 79 REAL(wp), ALLOCATABLE, DIMENSION(:,:) :: zdivu_i 75 80 !!-------------------------------------------------------------------- 76 81 ! 77 IF( ln_timing ) CALL timing_start('icedyn') 82 ! controls 83 IF( ln_timing ) CALL timing_start('icedyn') ! timing 84 IF( ln_icediachk ) CALL ice_cons_hsm(0, 'icedyn', rdiag_v, rdiag_s, rdiag_t, rdiag_fv, rdiag_fs, rdiag_ft) ! conservation 78 85 ! 79 86 IF( kt == nit000 .AND. lwp ) THEN … … 82 89 WRITE(numout,*)'~~~~~~~' 83 90 ENDIF 84 85 91 ! 86 IF( ln_landfast ) THEN !-- Landfast ice parameterization: define max bottom friction92 IF( ln_landfast_home ) THEN !-- Landfast ice parameterization 87 93 tau_icebfr(:,:) = 0._wp 88 94 DO jl = 1, jpl 89 WHERE( h_i(:,:,jl) > ht_n(:,:) * rn_gamma ) tau_icebfr(:,:) = tau_icebfr(:,:) + a_i(:,:,jl) * rn_icebfr 90 END DO 91 IF( iom_use('tau_icebfr') ) CALL iom_put( 'tau_icebfr', tau_icebfr ) 92 ENDIF 93 94 zhmax(:,:,:) = h_i_b(:,:,:) !-- Record max of the surrounding 9-pts ice thick. (for CALL Hbig) 95 WHERE( h_i_b(:,:,jl) > ht_n(:,:) * rn_depfra ) tau_icebfr(:,:) = tau_icebfr(:,:) + a_i(:,:,jl) * rn_icebfr 96 END DO 97 ENDIF 98 ! 99 ! !-- Record max of the surrounding 9-pts ice thick. (for CALL Hbig) 95 100 DO jl = 1, jpl 96 101 DO jj = 2, jpjm1 102 DO ji = fs_2, fs_jpim1 103 zhip_max(ji,jj,jl) = MAX( epsi20, h_ip_b(ji,jj,jl), h_ip_b(ji+1,jj ,jl), h_ip_b(ji ,jj+1,jl), & 104 & h_ip_b(ji-1,jj ,jl), h_ip_b(ji ,jj-1,jl), & 105 & h_ip_b(ji+1,jj+1,jl), h_ip_b(ji-1,jj-1,jl), & 106 & h_ip_b(ji+1,jj-1,jl), h_ip_b(ji-1,jj+1,jl) ) 107 zhi_max (ji,jj,jl) = MAX( epsi20, h_i_b (ji,jj,jl), h_i_b (ji+1,jj ,jl), h_i_b (ji ,jj+1,jl), & 108 & h_i_b (ji-1,jj ,jl), h_i_b (ji ,jj-1,jl), & 109 & h_i_b (ji+1,jj+1,jl), h_i_b (ji-1,jj-1,jl), & 110 & h_i_b (ji+1,jj-1,jl), h_i_b (ji-1,jj+1,jl) ) 111 zhs_max (ji,jj,jl) = MAX( epsi20, h_s_b (ji,jj,jl), h_s_b (ji+1,jj ,jl), h_s_b (ji ,jj+1,jl), & 112 & h_s_b (ji-1,jj ,jl), h_s_b (ji ,jj-1,jl), & 113 & h_s_b (ji+1,jj+1,jl), h_s_b (ji-1,jj-1,jl), & 114 & h_s_b (ji+1,jj-1,jl), h_s_b (ji-1,jj+1,jl) ) 115 END DO 116 END DO 117 END DO 118 CALL lbc_lnk_multi( 'icedyn', zhi_max(:,:,:), 'T', 1., zhs_max(:,:,:), 'T', 1., zhip_max(:,:,:), 'T', 1. ) 119 ! 120 ! 121 SELECT CASE( nice_dyn ) !-- Set which dynamics is running 122 123 CASE ( np_dynALL ) !== all dynamical processes ==! 124 CALL ice_dyn_rhg ( kt ) ! -- rheology 125 CALL ice_dyn_adv ( kt ) ; CALL Hbig( zhi_max, zhs_max, zhip_max ) ! -- advection of ice + correction on ice thickness 126 CALL ice_dyn_rdgrft( kt ) ! -- ridging/rafting 127 CALL ice_cor ( kt , 1 ) ! -- Corrections 128 129 CASE ( np_dynRHGADV ) !== no ridge/raft & no corrections ==! 130 CALL ice_dyn_rhg ( kt ) ! -- rheology 131 CALL ice_dyn_adv ( kt ) ; CALL Hbig( zhi_max, zhs_max, zhip_max ) ! -- advection of ice + correction on ice thickness 132 CALL Hpiling ! -- simple pile-up (replaces ridging/rafting) 133 134 CASE ( np_dynADV1D ) !== pure advection ==! (1D) 135 ALLOCATE( zdivu_i(jpi,jpj) ) 136 ! --- monotonicity test from Schar & Smolarkiewicz 1996 --- ! 137 ! CFL = 0.5 at a distance from the bound of 1/6 of the basin length 138 ! Then for dx = 2m and dt = 1s => rn_uice = u (1/6th) = 1m/s 139 DO jj = 1, jpj 140 DO ji = 1, jpi 141 zcoefu = ( REAL(jpiglo+1)*0.5 - REAL(ji+nimpp-1) ) / ( REAL(jpiglo+1)*0.5 - 1. ) 142 zcoefv = ( REAL(jpjglo+1)*0.5 - REAL(jj+njmpp-1) ) / ( REAL(jpjglo+1)*0.5 - 1. ) 143 u_ice(ji,jj) = rn_uice * 1.5 * SIGN( 1., zcoefu ) * ABS( zcoefu ) * umask(ji,jj,1) 144 v_ice(ji,jj) = rn_vice * 1.5 * SIGN( 1., zcoefv ) * ABS( zcoefv ) * vmask(ji,jj,1) 145 END DO 146 END DO 147 ! --- 148 CALL ice_dyn_adv ( kt ) ! -- advection of ice + correction on ice thickness 149 150 ! diagnostics: divergence at T points 151 DO jj = 2, jpjm1 97 152 DO ji = 2, jpim1 98 !!gm use of MAXVAL here is very probably less efficient than expending the 9 values 99 zhmax(ji,jj,jl) = MAX( epsi20, MAXVAL( h_i_b(ji-1:ji+1,jj-1:jj+1,jl) ) ) 100 END DO 101 END DO 102 END DO 103 CALL lbc_lnk( 'icedyn', zhmax(:,:,:), 'T', 1. ) 104 ! 105 ! 106 SELECT CASE( nice_dyn ) !-- Set which dynamics is running 107 108 CASE ( np_dynFULL ) !== all dynamical processes ==! 109 CALL ice_dyn_rhg ( kt ) ! -- rheology 110 CALL ice_dyn_adv ( kt ) ; CALL Hbig( zhmax ) ! -- advection of ice + correction on ice thickness 111 CALL ice_dyn_rdgrft( kt ) ! -- ridging/rafting 112 CALL ice_cor ( kt , 1 ) ! -- Corrections 113 114 CASE ( np_dynRHGADV ) !== no ridge/raft & no corrections ==! 115 CALL ice_dyn_rhg ( kt ) ! -- rheology 116 CALL ice_dyn_adv ( kt ) ! -- advection of ice 117 CALL Hpiling ! -- simple pile-up (replaces ridging/rafting) 118 119 CASE ( np_dynADV ) !== pure advection ==! (prescribed velocities) 153 zdivu_i(ji,jj) = ( e2u(ji,jj) * u_ice(ji,jj) - e2u(ji-1,jj) * u_ice(ji-1,jj) & 154 & + e1v(ji,jj) * v_ice(ji,jj) - e1v(ji,jj-1) * v_ice(ji,jj-1) ) * r1_e1e2t(ji,jj) 155 END DO 156 END DO 157 CALL lbc_lnk( 'icedyn', zdivu_i, 'T', 1. ) 158 IF( iom_use('icediv') ) CALL iom_put( "icediv" , zdivu_i(:,:) ) 159 160 DEALLOCATE( zdivu_i ) 161 162 CASE ( np_dynADV2D ) !== pure advection ==! (2D w prescribed velocities) 163 ALLOCATE( zdivu_i(jpi,jpj) ) 120 164 u_ice(:,:) = rn_uice * umask(:,:,1) 121 165 v_ice(:,:) = rn_vice * vmask(:,:,1) 122 !!CALL RANDOM_NUMBER(u_ice(:,:)) 123 !!CALL RANDOM_NUMBER(v_ice(:,:)) 124 CALL ice_dyn_adv ( kt ) ! -- advection of ice 166 !CALL RANDOM_NUMBER(u_ice(:,:)) ; u_ice(:,:) = u_ice(:,:) * 0.1 + rn_uice * 0.9 * umask(:,:,1) 167 !CALL RANDOM_NUMBER(v_ice(:,:)) ; v_ice(:,:) = v_ice(:,:) * 0.1 + rn_vice * 0.9 * vmask(:,:,1) 168 ! --- 169 CALL ice_dyn_adv ( kt ) ; CALL Hbig( zhi_max, zhs_max, zhip_max ) ! -- advection of ice + correction on ice thickness 170 171 ! diagnostics: divergence at T points 172 DO jj = 2, jpjm1 173 DO ji = 2, jpim1 174 zdivu_i(ji,jj) = ( e2u(ji,jj) * u_ice(ji,jj) - e2u(ji-1,jj) * u_ice(ji-1,jj) & 175 & + e1v(ji,jj) * v_ice(ji,jj) - e1v(ji,jj-1) * v_ice(ji,jj-1) ) * r1_e1e2t(ji,jj) 176 END DO 177 END DO 178 CALL lbc_lnk( 'icedyn', zdivu_i, 'T', 1. ) 179 IF( iom_use('icediv') ) CALL iom_put( "icediv" , zdivu_i(:,:) ) 180 181 DEALLOCATE( zdivu_i ) 125 182 126 183 END SELECT 127 ! 128 IF( ln_timing ) CALL timing_stop('icedyn') 184 ! 185 ! controls 186 IF( ln_icediachk ) CALL ice_cons_hsm(1, 'icedyn', rdiag_v, rdiag_s, rdiag_t, rdiag_fv, rdiag_fs, rdiag_ft) ! conservation 187 IF( ln_timing ) CALL timing_stop ('icedyn') ! timing 129 188 ! 130 189 END SUBROUTINE ice_dyn 131 190 132 191 133 SUBROUTINE Hbig( ph max )192 SUBROUTINE Hbig( phi_max, phs_max, phip_max ) 134 193 !!------------------------------------------------------------------- 135 194 !! *** ROUTINE Hbig *** 136 195 !! 137 196 !! ** Purpose : Thickness correction in case advection scheme creates 138 !! abnormally tick ice 139 !! 140 !! ** Method : 1- check whether ice thickness resulting from advection is 141 !! larger than the surrounding 9-points before advection 142 !! and reduce it if a) divergence or b) convergence & at_i>0.8 143 !! 2- bound ice thickness with hi_max (99m) 197 !! abnormally tick ice or snow 198 !! 199 !! ** Method : 1- check whether ice thickness is larger than the surrounding 9-points 200 !! (before advection) and reduce it by adapting ice concentration 201 !! 2- check whether snow thickness is larger than the surrounding 9-points 202 !! (before advection) and reduce it by sending the excess in the ocean 203 !! 3- check whether snow load deplets the snow-ice interface below sea level$ 204 !! and reduce it by sending the excess in the ocean 205 !! 4- correct pond fraction to avoid a_ip > a_i 144 206 !! 145 207 !! ** input : Max thickness of the surrounding 9-points 146 208 !!------------------------------------------------------------------- 147 REAL(wp), DIMENSION(:,:,:), INTENT(in) :: ph max ! max ice thick from surrounding 9-pts209 REAL(wp), DIMENSION(:,:,:), INTENT(in) :: phi_max, phs_max, phip_max ! max ice thick from surrounding 9-pts 148 210 ! 149 211 INTEGER :: ji, jj, jl ! dummy loop indices 150 REAL(wp) :: zh , zdv212 REAL(wp) :: zhip, zhi, zhs, zvs_excess, zfra 151 213 !!------------------------------------------------------------------- 152 214 ! … … 156 218 DO jj = 1, jpj 157 219 DO ji = 1, jpi 158 IF ( v_i(ji,jj,jl) > 0._wp ) THEN !-- bound to hmax220 IF ( v_i(ji,jj,jl) > 0._wp ) THEN 159 221 ! 160 zh = v_i (ji,jj,jl) / a_i(ji,jj,jl) 161 zdv = v_i(ji,jj,jl) - v_i_b(ji,jj,jl) 162 ! 163 IF ( ( zdv > 0.0 .AND. zh > phmax(ji,jj,jl) .AND. at_i_b(ji,jj) < 0.80 ) .OR. & 164 & ( zdv <= 0.0 .AND. zh > phmax(ji,jj,jl) ) ) THEN 165 a_i (ji,jj,jl) = v_i(ji,jj,jl) / MIN( phmax(ji,jj,jl), hi_max(jpl) ) !-- bound h_i to hi_max (99 m) 222 ! ! -- check h_ip -- ! 223 ! if h_ip is larger than the surrounding 9 pts => reduce h_ip and increase a_ip 224 IF( ln_pnd_H12 .AND. v_ip(ji,jj,jl) > 0._wp ) THEN 225 zhip = v_ip(ji,jj,jl) / MAX( epsi20, a_ip(ji,jj,jl) ) 226 IF( zhip > phip_max(ji,jj,jl) .AND. a_ip(ji,jj,jl) < 0.15 ) THEN 227 a_ip(ji,jj,jl) = v_ip(ji,jj,jl) / phip_max(ji,jj,jl) 228 ENDIF 166 229 ENDIF 167 230 ! 231 ! ! -- check h_i -- ! 232 ! if h_i is larger than the surrounding 9 pts => reduce h_i and increase a_i 233 zhi = v_i(ji,jj,jl) / a_i(ji,jj,jl) 234 IF( zhi > phi_max(ji,jj,jl) .AND. a_i(ji,jj,jl) < 0.15 ) THEN 235 a_i(ji,jj,jl) = v_i(ji,jj,jl) / MIN( phi_max(ji,jj,jl), hi_max(jpl) ) !-- bound h_i to hi_max (99 m) 236 ENDIF 237 ! 238 ! ! -- check h_s -- ! 239 ! if h_s is larger than the surrounding 9 pts => put the snow excess in the ocean 240 zhs = v_s(ji,jj,jl) / a_i(ji,jj,jl) 241 IF( v_s(ji,jj,jl) > 0._wp .AND. zhs > phs_max(ji,jj,jl) .AND. a_i(ji,jj,jl) < 0.15 ) THEN 242 zfra = a_i(ji,jj,jl) * phs_max(ji,jj,jl) / MAX( v_s(ji,jj,jl), epsi20 ) 243 ! 244 wfx_res(ji,jj) = wfx_res(ji,jj) + ( v_s(ji,jj,jl) - a_i(ji,jj,jl) * phs_max(ji,jj,jl) ) * rhos * r1_rdtice 245 hfx_res(ji,jj) = hfx_res(ji,jj) - SUM( e_s(ji,jj,1:nlay_s,jl) ) * ( 1._wp - zfra ) * r1_rdtice ! W.m-2 <0 246 ! 247 e_s(ji,jj,1:nlay_s,jl) = e_s(ji,jj,1:nlay_s,jl) * zfra 248 v_s(ji,jj,jl) = a_i(ji,jj,jl) * phs_max(ji,jj,jl) 249 ENDIF 250 ! 251 ! ! -- check snow load -- ! 252 ! if snow load makes snow-ice interface to deplet below the ocean surface => put the snow excess in the ocean 253 ! this correction is crucial because of the call to routine icecor afterwards which imposes a mini of ice thick. (rn_himin) 254 ! this imposed mini can artificially make the snow very thick (if concentration decreases drastically) 255 zvs_excess = MAX( 0._wp, v_s(ji,jj,jl) - v_i(ji,jj,jl) * (rau0-rhoi) * r1_rhos ) 256 IF( zvs_excess > 0._wp ) THEN 257 zfra = zvs_excess / MAX( v_s(ji,jj,jl), epsi20 ) 258 wfx_res(ji,jj) = wfx_res(ji,jj) + zvs_excess * rhos * r1_rdtice 259 hfx_res(ji,jj) = hfx_res(ji,jj) - SUM( e_s(ji,jj,1:nlay_s,jl) ) * ( 1._wp - zfra ) * r1_rdtice ! W.m-2 <0 260 ! 261 e_s(ji,jj,1:nlay_s,jl) = e_s(ji,jj,1:nlay_s,jl) * zfra 262 v_s(ji,jj,jl) = v_s(ji,jj,jl) - zvs_excess 263 ENDIF 264 168 265 ENDIF 169 266 END DO … … 215 312 INTEGER :: ios, ioptio ! Local integer output status for namelist read 216 313 !! 217 NAMELIST/namdyn/ ln_dyn FULL, ln_dynRHGADV, ln_dynADV, rn_uice, rn_vice, &218 & rn_ishlat ,&219 & ln_landfast , rn_gamma , rn_icebfr, rn_lfrelax314 NAMELIST/namdyn/ ln_dynALL, ln_dynRHGADV, ln_dynADV1D, ln_dynADV2D, rn_uice, rn_vice, & 315 & rn_ishlat , & 316 & ln_landfast_L16, ln_landfast_home, rn_depfra, rn_icebfr, rn_lfrelax, rn_tensile 220 317 !!------------------------------------------------------------------- 221 318 ! … … 233 330 WRITE(numout,*) '~~~~~~~~~~~~' 234 331 WRITE(numout,*) ' Namelist namdyn:' 235 WRITE(numout,*) ' Full ice dynamics (rhg + adv + ridge/raft + corr) ln_dynFULL = ', ln_dynFULL 236 WRITE(numout,*) ' No ridge/raft & No cor (rhg + adv) ln_dynRHGADV = ', ln_dynRHGADV 237 WRITE(numout,*) ' Advection only (rn_uvice + adv) ln_dynADV = ', ln_dynADV 238 WRITE(numout,*) ' with prescribed velocity given by (u,v)_ice = (rn_uice,rn_vice) = (', rn_uice,',', rn_vice,')' 239 WRITE(numout,*) ' lateral boundary condition for sea ice dynamics rn_ishlat = ', rn_ishlat 240 WRITE(numout,*) ' Landfast: param (T or F) ln_landfast = ', ln_landfast 241 WRITE(numout,*) ' fraction of ocean depth that ice must reach rn_gamma = ', rn_gamma 242 WRITE(numout,*) ' maximum bottom stress per unit area of contact rn_icebfr = ', rn_icebfr 243 WRITE(numout,*) ' relax time scale (s-1) to reach static friction rn_lfrelax = ', rn_lfrelax 332 WRITE(numout,*) ' Full ice dynamics (rhg + adv + ridge/raft + corr) ln_dynALL = ', ln_dynALL 333 WRITE(numout,*) ' No ridge/raft & No cor (rhg + adv) ln_dynRHGADV = ', ln_dynRHGADV 334 WRITE(numout,*) ' Advection 1D only (Schar & Smolarkiewicz 1996) ln_dynADV1D = ', ln_dynADV1D 335 WRITE(numout,*) ' Advection 2D only (rn_uvice + adv) ln_dynADV2D = ', ln_dynADV2D 336 WRITE(numout,*) ' with prescribed velocity given by (u,v)_ice = (rn_uice,rn_vice) = (', rn_uice,',', rn_vice,')' 337 WRITE(numout,*) ' lateral boundary condition for sea ice dynamics rn_ishlat = ', rn_ishlat 338 WRITE(numout,*) ' Landfast: param from Lemieux 2016 ln_landfast_L16 = ', ln_landfast_L16 339 WRITE(numout,*) ' Landfast: param from home made ln_landfast_home= ', ln_landfast_home 340 WRITE(numout,*) ' fraction of ocean depth that ice must reach rn_depfra = ', rn_depfra 341 WRITE(numout,*) ' maximum bottom stress per unit area of contact rn_icebfr = ', rn_icebfr 342 WRITE(numout,*) ' relax time scale (s-1) to reach static friction rn_lfrelax = ', rn_lfrelax 343 WRITE(numout,*) ' isotropic tensile strength rn_tensile = ', rn_tensile 244 344 WRITE(numout,*) 245 345 ENDIF … … 247 347 ioptio = 0 248 348 ! !--- full dynamics (rheology + advection + ridging/rafting + correction) 249 IF( ln_dyn FULL ) THEN ; ioptio = ioptio + 1 ; nice_dyn = np_dynFULL; ENDIF349 IF( ln_dynALL ) THEN ; ioptio = ioptio + 1 ; nice_dyn = np_dynALL ; ENDIF 250 350 ! !--- dynamics without ridging/rafting and corr (rheology + advection) 251 351 IF( ln_dynRHGADV ) THEN ; ioptio = ioptio + 1 ; nice_dyn = np_dynRHGADV ; ENDIF 252 ! !--- advection only with prescribed ice velocities (from namelist) 253 IF( ln_dynADV ) THEN ; ioptio = ioptio + 1 ; nice_dyn = np_dynADV ; ENDIF 352 ! !--- advection 1D only - test case from Schar & Smolarkiewicz 1996 353 IF( ln_dynADV1D ) THEN ; ioptio = ioptio + 1 ; nice_dyn = np_dynADV1D ; ENDIF 354 ! !--- advection 2D only with prescribed ice velocities (from namelist) 355 IF( ln_dynADV2D ) THEN ; ioptio = ioptio + 1 ; nice_dyn = np_dynADV2D ; ENDIF 254 356 ! 255 357 IF( ioptio /= 1 ) CALL ctl_stop( 'ice_dyn_init: one and only one ice dynamics option has to be defined ' ) … … 261 363 ELSEIF ( 2. < rn_ishlat ) THEN ; IF(lwp) WRITE(numout,*) ' ===>>> ice lateral strong-slip' 262 364 ENDIF 263 ! !--- NO Landfast ice : set to zero once for all 264 IF( .NOT.ln_landfast ) tau_icebfr(:,:) = 0._wp 365 ! !--- Landfast ice 366 IF( .NOT.ln_landfast_L16 .AND. .NOT.ln_landfast_home ) tau_icebfr(:,:) = 0._wp 367 ! 368 IF ( ln_landfast_L16 .AND. ln_landfast_home ) THEN 369 CALL ctl_stop( 'ice_dyn_init: choose one and only one landfast parameterization (ln_landfast_L16 or ln_landfast_home)' ) 370 ENDIF 265 371 ! 266 372 CALL ice_dyn_rdgrft_init ! set ice ridging/rafting parameters
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