Changeset 5989 for branches/2014/dev_r4650_UKMO10_Tidally_Meaned_Diagnostics/NEMOGCM/NEMO/OPA_SRC/DYN/dynspg.F90
- Timestamp:
- 2015-12-03T09:10:32+01:00 (8 years ago)
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branches/2014/dev_r4650_UKMO10_Tidally_Meaned_Diagnostics/NEMOGCM/NEMO/OPA_SRC/DYN/dynspg.F90
r5260 r5989 6 6 !! History : 1.0 ! 2005-12 (C. Talandier, G. Madec, V. Garnier) Original code 7 7 !! 3.2 ! 2009-07 (R. Benshila) Suppression of rigid-lid option 8 !!---------------------------------------------------------------------- 9 10 !!---------------------------------------------------------------------- 11 !! dyn_spg : update the dynamics trend with the lateral diffusion 12 !! dyn_spg_ctl : initialization, namelist read, and parameters control 8 !! 3.7 ! 2015-11 (J. Chanut) Suppression of filtered free surface 9 !!---------------------------------------------------------------------- 10 11 !!---------------------------------------------------------------------- 12 !! dyn_spg : update the dynamics trend with surface pressure gradient 13 !! dyn_spg_init: initialization, namelist read, and parameters control 13 14 !!---------------------------------------------------------------------- 14 15 USE oce ! ocean dynamics and tracers variables … … 18 19 USE sbc_oce ! surface boundary condition: ocean 19 20 USE sbcapr ! surface boundary condition: atmospheric pressure 20 USE dynspg_oce ! surface pressure gradient variables21 21 USE dynspg_exp ! surface pressure gradient (dyn_spg_exp routine) 22 22 USE dynspg_ts ! surface pressure gradient (dyn_spg_ts routine) 23 USE dynspg_flt ! surface pressure gradient (dyn_spg_flt routine)24 USE dynadv ! dynamics: vector invariant versus flux form25 USE dynhpg, ONLY: ln_dynhpg_imp26 23 USE sbctide 27 24 USE updtide … … 32 29 USE in_out_manager ! I/O manager 33 30 USE lib_mpp ! MPP library 34 USE solver ! solver initialization35 31 USE wrk_nemo ! Memory Allocation 36 32 USE timing ! Timing … … 43 39 PUBLIC dyn_spg_init ! routine called by opa module 44 40 45 INTEGER :: nspg = 0 ! type of surface pressure gradient scheme defined from l k_dynspg_...41 INTEGER :: nspg = 0 ! type of surface pressure gradient scheme defined from ln_dynspg_... 46 42 47 43 !! * Substitutions … … 55 51 CONTAINS 56 52 57 SUBROUTINE dyn_spg( kt , kindic)53 SUBROUTINE dyn_spg( kt ) 58 54 !!---------------------------------------------------------------------- 59 55 !! *** ROUTINE dyn_spg *** … … 66 62 !!gm the after velocity, in the 2 other (ua,va) are still the trends 67 63 !! 68 !! ** Method : T hreeschemes:64 !! ** Method : Two schemes: 69 65 !! - explicit computation : the spg is evaluated at now 70 !! - filtered computation : the Roulet & madec (2000) technique is used71 66 !! - split-explicit computation: a time splitting technique is used 72 67 !! … … 77 72 !! Note that as all external forcing a time averaging over a two rdt 78 73 !! period is used to prevent the divergence of odd and even time step. 79 !!80 !! N.B. : When key_esopa is used all the scheme are tested, regardless81 !! of the physical meaning of the results.82 74 !!---------------------------------------------------------------------- 83 75 ! 84 76 INTEGER, INTENT(in ) :: kt ! ocean time-step index 85 INTEGER, INTENT( out) :: kindic ! solver flag86 77 ! 87 78 INTEGER :: ji, jj, jk ! dummy loop indices … … 106 97 107 98 IF( ln_apr_dyn & ! atmos. pressure 108 .OR. ( .NOT.l k_dynspg_ts .AND. (ln_tide_pot .AND. lk_tide) ) & ! tide potential (no time slitting)99 .OR. ( .NOT.ln_dynspg_ts .AND. (ln_tide_pot .AND. lk_tide) ) & ! tide potential (no time slitting) 109 100 .OR. nn_ice_embd == 2 ) THEN ! embedded sea-ice 110 101 ! … … 116 107 END DO 117 108 ! 118 IF( ln_apr_dyn .AND. (.NOT. l k_dynspg_ts) ) THEN !== Atmospheric pressure gradient (added later in time-split case) ==!109 IF( ln_apr_dyn .AND. (.NOT. ln_dynspg_ts) ) THEN !== Atmospheric pressure gradient (added later in time-split case) ==! 119 110 zg_2 = grav * 0.5 120 111 DO jj = 2, jpjm1 ! gradient of Patm using inverse barometer ssh 121 112 DO ji = fs_2, fs_jpim1 ! vector opt. 122 113 spgu(ji,jj) = spgu(ji,jj) + zg_2 * ( ssh_ib (ji+1,jj) - ssh_ib (ji,jj) & 123 & + ssh_ibb(ji+1,jj) - ssh_ibb(ji,jj) ) /e1u(ji,jj)114 & + ssh_ibb(ji+1,jj) - ssh_ibb(ji,jj) ) * r1_e1u(ji,jj) 124 115 spgv(ji,jj) = spgv(ji,jj) + zg_2 * ( ssh_ib (ji,jj+1) - ssh_ib (ji,jj) & 125 & + ssh_ibb(ji,jj+1) - ssh_ibb(ji,jj) ) /e2v(ji,jj)116 & + ssh_ibb(ji,jj+1) - ssh_ibb(ji,jj) ) * r1_e2v(ji,jj) 126 117 END DO 127 118 END DO … … 129 120 ! 130 121 ! !== tide potential forcing term ==! 131 IF( .NOT.l k_dynspg_ts .AND. ( ln_tide_pot .AND. lk_tide ) ) THEN ! N.B. added directly at sub-time-step in ts-case122 IF( .NOT.ln_dynspg_ts .AND. ( ln_tide_pot .AND. lk_tide ) ) THEN ! N.B. added directly at sub-time-step in ts-case 132 123 ! 133 124 CALL upd_tide( kt ) ! update tide potential … … 135 126 DO jj = 2, jpjm1 ! add tide potential forcing 136 127 DO ji = fs_2, fs_jpim1 ! vector opt. 137 spgu(ji,jj) = spgu(ji,jj) + grav * ( pot_astro(ji+1,jj) - pot_astro(ji,jj) ) /e1u(ji,jj)138 spgv(ji,jj) = spgv(ji,jj) + grav * ( pot_astro(ji,jj+1) - pot_astro(ji,jj) ) /e2v(ji,jj)128 spgu(ji,jj) = spgu(ji,jj) + grav * ( pot_astro(ji+1,jj) - pot_astro(ji,jj) ) * r1_e1u(ji,jj) 129 spgv(ji,jj) = spgv(ji,jj) + grav * ( pot_astro(ji,jj+1) - pot_astro(ji,jj) ) * r1_e2v(ji,jj) 139 130 END DO 140 131 END DO … … 149 140 DO jj = 2, jpjm1 150 141 DO ji = fs_2, fs_jpim1 ! vector opt. 151 spgu(ji,jj) = spgu(ji,jj) + ( zpice(ji+1,jj) - zpice(ji,jj) ) /e1u(ji,jj)152 spgv(ji,jj) = spgv(ji,jj) + ( zpice(ji,jj+1) - zpice(ji,jj) ) /e2v(ji,jj)142 spgu(ji,jj) = spgu(ji,jj) + ( zpice(ji+1,jj) - zpice(ji,jj) ) * r1_e1u(ji,jj) 143 spgv(ji,jj) = spgv(ji,jj) + ( zpice(ji,jj+1) - zpice(ji,jj) ) * r1_e2v(ji,jj) 153 144 END DO 154 145 END DO … … 174 165 CASE ( 0 ) ; CALL dyn_spg_exp( kt ) ! explicit 175 166 CASE ( 1 ) ; CALL dyn_spg_ts ( kt ) ! time-splitting 176 CASE ( 2 ) ; CALL dyn_spg_flt( kt, kindic ) ! filtered177 167 ! 178 CASE ( -1 ) ! esopa: test all possibility with control print179 CALL dyn_spg_exp( kt )180 CALL prt_ctl( tab3d_1=ua, clinfo1=' spg0 - Ua: ', mask1=umask, &181 & tab3d_2=va, clinfo2= ' Va: ', mask2=vmask, clinfo3='dyn' )182 CALL dyn_spg_ts ( kt )183 CALL prt_ctl( tab3d_1=ua, clinfo1=' spg1 - Ua: ', mask1=umask, &184 & tab3d_2=va, clinfo2= ' Va: ', mask2=vmask, clinfo3='dyn' )185 CALL dyn_spg_flt( kt, kindic )186 CALL prt_ctl( tab3d_1=ua, clinfo1=' spg2 - Ua: ', mask1=umask, &187 & tab3d_2=va, clinfo2= ' Va: ', mask2=vmask, clinfo3='dyn' )188 168 END SELECT 189 169 ! 190 170 IF( l_trddyn ) THEN ! save the surface pressure gradient trends for further diagnostics 191 SELECT CASE ( nspg ) 192 CASE ( 0, 1 ) 193 ztrdu(:,:,:) = ua(:,:,:) - ztrdu(:,:,:) 194 ztrdv(:,:,:) = va(:,:,:) - ztrdv(:,:,:) 195 CASE( 2 ) 196 z2dt = 2. * rdt 197 IF( neuler == 0 .AND. kt == nit000 ) z2dt = rdt 198 ztrdu(:,:,:) = ( ua(:,:,:) - ub(:,:,:) ) / z2dt - ztrdu(:,:,:) 199 ztrdv(:,:,:) = ( va(:,:,:) - vb(:,:,:) ) / z2dt - ztrdv(:,:,:) 200 END SELECT 171 ztrdu(:,:,:) = ua(:,:,:) - ztrdu(:,:,:) 172 ztrdv(:,:,:) = va(:,:,:) - ztrdv(:,:,:) 201 173 CALL trd_dyn( ztrdu, ztrdv, jpdyn_spg, kt ) 202 174 ! … … 216 188 !! *** ROUTINE dyn_spg_init *** 217 189 !! 218 !! ** Purpose : Control the consistency between cppoptions for190 !! ** Purpose : Control the consistency between namelist options for 219 191 !! surface pressure gradient schemes 220 192 !!---------------------------------------------------------------------- 221 INTEGER :: ioptio 193 INTEGER :: ioptio, ios 194 ! 195 NAMELIST/namdyn_spg/ ln_dynspg_exp, ln_dynspg_ts, & 196 & ln_bt_fw, ln_bt_av, ln_bt_auto, & 197 & nn_baro, rn_bt_cmax, nn_bt_flt 222 198 !!---------------------------------------------------------------------- 223 199 ! 224 200 IF( nn_timing == 1 ) CALL timing_start('dyn_spg_init') 225 201 ! 226 IF(lwp) THEN ! Control print 202 REWIND( numnam_ref ) ! Namelist namdyn_spg in reference namelist : Free surface 203 READ ( numnam_ref, namdyn_spg, IOSTAT = ios, ERR = 901) 204 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namdyn_spg in reference namelist', lwp ) 205 206 REWIND( numnam_cfg ) ! Namelist namdyn_spg in configuration namelist : Free surface 207 READ ( numnam_cfg, namdyn_spg, IOSTAT = ios, ERR = 902 ) 208 902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namdyn_spg in configuration namelist', lwp ) 209 IF(lwm) WRITE ( numond, namdyn_spg ) 210 ! 211 IF(lwp) THEN ! Namelist print 227 212 WRITE(numout,*) 228 213 WRITE(numout,*) 'dyn_spg_init : choice of the surface pressure gradient scheme' 229 214 WRITE(numout,*) '~~~~~~~~~~~' 230 WRITE(numout,*) ' Explicit free surface lk_dynspg_exp = ', lk_dynspg_exp 231 WRITE(numout,*) ' Free surface with time splitting lk_dynspg_ts = ', lk_dynspg_ts 232 WRITE(numout,*) ' Filtered free surface cst volume lk_dynspg_flt = ', lk_dynspg_flt 233 ENDIF 234 235 IF( lk_dynspg_ts ) CALL dyn_spg_ts_init( nit000 ) 236 ! (do it now, to set nn_baro, used to allocate some arrays later on) 237 ! ! allocate dyn_spg arrays 238 IF( lk_dynspg_ts ) THEN 239 IF( dynspg_oce_alloc() /= 0 ) CALL ctl_stop('STOP', 'dyn_spg_init: failed to allocate dynspg_oce arrays') 215 WRITE(numout,*) ' Explicit free surface ln_dynspg_exp = ', ln_dynspg_exp 216 WRITE(numout,*) ' Free surface with time splitting ln_dynspg_ts = ', ln_dynspg_ts 217 ENDIF 218 219 IF( ln_dynspg_ts ) THEN 220 CALL dyn_spg_ts_init( nit000 ) ! do it first, to set nn_baro, used to allocate some arrays later on 221 ! ! allocate dyn_spg arrays 240 222 IF( dyn_spg_ts_alloc() /= 0 ) CALL ctl_stop('STOP', 'dyn_spg_init: failed to allocate dynspg_ts arrays') 241 223 IF ((neuler/=0).AND.(ln_bt_fw)) CALL ts_rst( nit000, 'READ' ) … … 244 226 ! ! Control of surface pressure gradient scheme options 245 227 ioptio = 0 246 IF(lk_dynspg_exp) ioptio = ioptio + 1 247 IF(lk_dynspg_ts ) ioptio = ioptio + 1 248 IF(lk_dynspg_flt) ioptio = ioptio + 1 249 ! 250 IF( ( ioptio > 1 .AND. .NOT. lk_esopa ) .OR. ( ioptio == 0 .AND. .NOT. lk_c1d ) ) & 251 & CALL ctl_stop( ' Choose only one surface pressure gradient scheme with a key cpp' ) 252 IF( ( lk_dynspg_ts .OR. lk_dynspg_exp ) .AND. ln_isfcav ) & 253 & CALL ctl_stop( ' dynspg_ts and dynspg_exp not tested with ice shelf cavity ' ) 254 ! 255 IF( lk_esopa ) nspg = -1 256 IF( lk_dynspg_exp) nspg = 0 257 IF( lk_dynspg_ts ) nspg = 1 258 IF( lk_dynspg_flt) nspg = 2 259 ! 260 IF( lk_esopa ) nspg = -1 228 IF(ln_dynspg_exp) ioptio = ioptio + 1 229 IF(ln_dynspg_ts ) ioptio = ioptio + 1 230 ! 231 IF( ioptio > 1 .OR. ( ioptio == 0 .AND. .NOT. lk_c1d ) ) & 232 & CALL ctl_stop( ' Choose only one surface pressure gradient scheme' ) 233 IF( ln_dynspg_ts .AND. ln_isfcav ) & 234 & CALL ctl_stop( ' dynspg_ts not tested with ice shelf cavity ' ) 235 ! 236 IF( ln_dynspg_exp) nspg = 0 237 IF( ln_dynspg_ts ) nspg = 1 261 238 ! 262 239 IF(lwp) THEN 263 240 WRITE(numout,*) 264 IF( nspg == -1 ) WRITE(numout,*) ' ESOPA test All scheme used'265 241 IF( nspg == 0 ) WRITE(numout,*) ' explicit free surface' 266 242 IF( nspg == 1 ) WRITE(numout,*) ' free surface with time splitting scheme' 267 IF( nspg == 2 ) WRITE(numout,*) ' filtered free surface'268 ENDIF269 270 #if defined key_dynspg_flt || defined key_esopa271 CALL solver_init( nit000 ) ! Elliptic solver initialisation272 #endif273 274 ! ! Control of timestep choice275 IF( lk_dynspg_ts .OR. lk_dynspg_exp ) THEN276 IF( nn_cla == 1 ) CALL ctl_stop( 'Crossland advection not implemented for this free surface formulation' )277 ENDIF278 279 ! ! Control of hydrostatic pressure choice280 IF( lk_dynspg_ts .AND. ln_dynhpg_imp ) THEN281 CALL ctl_stop( 'Semi-implicit hpg not compatible with time splitting' )282 243 ENDIF 283 244 !
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