- Timestamp:
- 2015-12-04T17:05:58+01:00 (9 years ago)
- File:
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- 1 edited
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branches/2015/dev_r5836_NOC3_vvl_by_default/NEMOGCM/NEMO/OPA_SRC/DYN/dynspg.F90
r5845 r6004 9 9 10 10 !!---------------------------------------------------------------------- 11 !! dyn_spg : update the dynamics trend with the lateral diffusion12 !! dyn_spg_ ctl: initialization, namelist read, and parameters control11 !! dyn_spg : update the dynamics trend with surface pressure gradient 12 !! dyn_spg_init: initialization, namelist read, and parameters control 13 13 !!---------------------------------------------------------------------- 14 14 USE oce ! ocean dynamics and tracers variables … … 18 18 USE sbc_oce ! surface boundary condition: ocean 19 19 USE sbcapr ! surface boundary condition: atmospheric pressure 20 USE dynspg_oce ! surface pressure gradient variables21 20 USE dynspg_exp ! surface pressure gradient (dyn_spg_exp routine) 22 21 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 form 25 USE dynhpg, ONLY: ln_dynhpg_imp 26 USE sbctide 27 USE updtide 22 USE sbctide ! 23 USE updtide ! 28 24 USE trd_oce ! trends: ocean variables 29 25 USE trddyn ! trend manager: dynamics … … 32 28 USE in_out_manager ! I/O manager 33 29 USE lib_mpp ! MPP library 34 USE solver ! solver initialization35 30 USE wrk_nemo ! Memory Allocation 36 31 USE timing ! Timing 37 32 38 39 33 IMPLICIT NONE 40 34 PRIVATE … … 44 38 45 39 INTEGER :: nspg = 0 ! type of surface pressure gradient scheme defined from lk_dynspg_... 40 41 ! ! Parameter to control the surface pressure gradient scheme 42 INTEGER, PARAMETER :: np_TS = 1 ! split-explicit time stepping (Time-Splitting) 43 INTEGER, PARAMETER :: np_EXP = 0 ! explicit time stepping 44 INTEGER, PARAMETER :: np_NO =-1 ! no surface pressure gradient, no scheme 46 45 47 46 !! * Substitutions … … 54 53 CONTAINS 55 54 56 SUBROUTINE dyn_spg( kt , kindic)55 SUBROUTINE dyn_spg( kt ) 57 56 !!---------------------------------------------------------------------- 58 57 !! *** ROUTINE dyn_spg *** 59 58 !! 60 !! ** Purpose : achieve the momentum time stepping by computing the 61 !! last trend, the surface pressure gradient including the 62 !! atmospheric pressure forcing (ln_apr_dyn=T), and performing 63 !! the Leap-Frog integration. 64 !!gm In the current version only the filtered solution provide 65 !!gm the after velocity, in the 2 other (ua,va) are still the trends 59 !! ** Purpose : compute surface pressure gradient including the 60 !! atmospheric pressure forcing (ln_apr_dyn=T). 66 61 !! 67 !! ** Method : Three schemes: 68 !! - explicit computation : the spg is evaluated at now 69 !! - filtered computation : the Roulet & madec (2000) technique is used 70 !! - split-explicit computation: a time splitting technique is used 62 !! ** Method : Two schemes: 63 !! - explicit : the spg is evaluated at now 64 !! - split-explicit : a time splitting technique is used 71 65 !! 72 66 !! ln_apr_dyn=T : the atmospheric pressure forcing is applied … … 78 72 !!---------------------------------------------------------------------- 79 73 INTEGER, INTENT(in ) :: kt ! ocean time-step index 80 INTEGER, INTENT( out) :: kindic ! solver flag81 74 ! 82 75 INTEGER :: ji, jj, jk ! dummy loop indices … … 88 81 IF( nn_timing == 1 ) CALL timing_start('dyn_spg') 89 82 ! 90 91 !!gm NOTA BENE : the dynspg_exp and dynspg_ts should be modified so that92 !!gm they return the after velocity, not the trends (as in trazdf_imp...)93 !!gm In this case, change/simplify dynnxt94 95 96 83 IF( l_trddyn ) THEN ! temporary save of ta and sa trends 97 84 CALL wrk_alloc( jpi,jpj,jpk, ztrdu, ztrdv ) … … 99 86 ztrdv(:,:,:) = va(:,:,:) 100 87 ENDIF 101 88 ! 102 89 IF( ln_apr_dyn & ! atmos. pressure 103 .OR. ( .NOT.l k_dynspg_ts .AND. (ln_tide_pot .AND. lk_tide) ) & ! tide potential (no time slitting)90 .OR. ( .NOT.ln_dynspg_ts .AND. (ln_tide_pot .AND. lk_tide) ) & ! tide potential (no time slitting) 104 91 .OR. nn_ice_embd == 2 ) THEN ! embedded sea-ice 105 92 ! … … 111 98 END DO 112 99 ! 113 IF( ln_apr_dyn .AND. (.NOT. lk_dynspg_ts) ) THEN!== Atmospheric pressure gradient (added later in time-split case) ==!100 IF( ln_apr_dyn .AND. .NOT.ln_dynspg_ts ) THEN !== Atmospheric pressure gradient (added later in time-split case) ==! 114 101 zg_2 = grav * 0.5 115 102 DO jj = 2, jpjm1 ! gradient of Patm using inverse barometer ssh … … 124 111 ! 125 112 ! !== tide potential forcing term ==! 126 IF( .NOT.l k_dynspg_ts .AND. ( ln_tide_pot .AND. lk_tide ) ) THEN ! N.B. added directly at sub-time-step in ts-case113 IF( .NOT.ln_dynspg_ts .AND. ( ln_tide_pot .AND. lk_tide ) ) THEN ! N.B. added directly at sub-time-step in ts-case 127 114 ! 128 115 CALL upd_tide( kt ) ! update tide potential … … 152 139 ENDIF 153 140 ! 154 DO jk = 1, jpkm1 141 DO jk = 1, jpkm1 !== Add all terms to the general trend 155 142 DO jj = 2, jpjm1 156 143 DO ji = fs_2, fs_jpim1 ! vector opt. … … 160 147 END DO 161 148 END DO 162 149 ! 163 150 !!gm add here a call to dyn_trd for ice pressure gradient, the surf pressure trends ???? 164 165 ENDIF 166 167 SELECT CASE ( nspg ) ! compute surf. pressure gradient trend and add it to the general trend 168 ! 169 CASE ( 0 ) ; CALL dyn_spg_exp( kt ) ! explicit 170 CASE ( 1 ) ; CALL dyn_spg_ts ( kt ) ! time-splitting 171 CASE ( 2 ) ; CALL dyn_spg_flt( kt, kindic ) ! filtered 172 ! 151 ! 152 ENDIF 153 ! 154 SELECT CASE ( nspg ) !== surface pressure gradient computed and add to the general trend ==! 155 CASE ( np_EXP ) ; CALL dyn_spg_exp( kt ) ! explicit 156 CASE ( np_TS ) ; CALL dyn_spg_ts ( kt ) ! time-splitting 173 157 END SELECT 174 158 ! 175 IF( l_trddyn ) THEN ! save the surface pressure gradient trends for further diagnostics 176 SELECT CASE ( nspg ) 177 CASE ( 0, 1 ) 178 ztrdu(:,:,:) = ua(:,:,:) - ztrdu(:,:,:) 179 ztrdv(:,:,:) = va(:,:,:) - ztrdv(:,:,:) 180 CASE( 2 ) 181 z2dt = 2. * rdt 182 IF( neuler == 0 .AND. kt == nit000 ) z2dt = rdt 183 ztrdu(:,:,:) = ( ua(:,:,:) - ub(:,:,:) ) / z2dt - ztrdu(:,:,:) 184 ztrdv(:,:,:) = ( va(:,:,:) - vb(:,:,:) ) / z2dt - ztrdv(:,:,:) 185 END SELECT 159 IF( l_trddyn ) THEN ! save the surface pressure gradient trends for further diagnostics 160 ztrdu(:,:,:) = ua(:,:,:) - ztrdu(:,:,:) 161 ztrdv(:,:,:) = va(:,:,:) - ztrdv(:,:,:) 186 162 CALL trd_dyn( ztrdu, ztrdv, jpdyn_spg, kt ) 187 !188 163 CALL wrk_dealloc( jpi,jpj,jpk, ztrdu, ztrdv ) 189 164 ENDIF 190 ! 165 ! ! print mean trends (used for debugging) 191 166 IF(ln_ctl) CALL prt_ctl( tab3d_1=ua, clinfo1=' spg - Ua: ', mask1=umask, & 192 167 & tab3d_2=va, clinfo2= ' Va: ', mask2=vmask, clinfo3='dyn' ) … … 201 176 !! *** ROUTINE dyn_spg_init *** 202 177 !! 203 !! ** Purpose : Control the consistency between cppoptions for178 !! ** Purpose : Control the consistency between namelist options for 204 179 !! surface pressure gradient schemes 205 180 !!---------------------------------------------------------------------- 206 INTEGER :: ioptio 181 INTEGER :: ioptio, ios ! local integers 182 ! 183 NAMELIST/namdyn_spg/ ln_dynspg_exp , ln_dynspg_ts, & 184 & ln_bt_fw, ln_bt_av , ln_bt_auto , & 185 & nn_baro , rn_bt_cmax, nn_bt_flt 207 186 !!---------------------------------------------------------------------- 208 187 ! 209 188 IF( nn_timing == 1 ) CALL timing_start('dyn_spg_init') 210 189 ! 211 IF(lwp) THEN ! Control print 190 REWIND( numnam_ref ) ! Namelist namdyn_spg in reference namelist : Free surface 191 READ ( numnam_ref, namdyn_spg, IOSTAT = ios, ERR = 901) 192 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namdyn_spg in reference namelist', lwp ) 193 ! 194 REWIND( numnam_cfg ) ! Namelist namdyn_spg in configuration namelist : Free surface 195 READ ( numnam_cfg, namdyn_spg, IOSTAT = ios, ERR = 902 ) 196 902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namdyn_spg in configuration namelist', lwp ) 197 IF(lwm) WRITE ( numond, namdyn_spg ) 198 ! 199 IF(lwp) THEN ! Namelist print 212 200 WRITE(numout,*) 213 201 WRITE(numout,*) 'dyn_spg_init : choice of the surface pressure gradient scheme' 214 202 WRITE(numout,*) '~~~~~~~~~~~' 215 WRITE(numout,*) ' Explicit free surface lk_dynspg_exp = ', lk_dynspg_exp 216 WRITE(numout,*) ' Free surface with time splitting lk_dynspg_ts = ', lk_dynspg_ts 217 WRITE(numout,*) ' Filtered free surface cst volume lk_dynspg_flt = ', lk_dynspg_flt 218 ENDIF 219 220 IF( lk_dynspg_ts ) CALL dyn_spg_ts_init( nit000 ) 221 ! (do it now, to set nn_baro, used to allocate some arrays later on) 222 ! ! allocate dyn_spg arrays 223 IF( lk_dynspg_ts ) THEN 224 IF( dynspg_oce_alloc() /= 0 ) CALL ctl_stop('STOP', 'dyn_spg_init: failed to allocate dynspg_oce arrays') 225 IF( dyn_spg_ts_alloc() /= 0 ) CALL ctl_stop('STOP', 'dyn_spg_init: failed to allocate dynspg_ts arrays') 226 IF ((neuler/=0).AND.(ln_bt_fw)) CALL ts_rst( nit000, 'READ' ) 227 ENDIF 228 229 ! ! Control of surface pressure gradient scheme options 230 ioptio = 0 231 IF(lk_dynspg_exp) ioptio = ioptio + 1 232 IF(lk_dynspg_ts ) ioptio = ioptio + 1 233 IF(lk_dynspg_flt) ioptio = ioptio + 1 234 ! 235 IF( ioptio > 1 .OR. ( ioptio == 0 .AND. .NOT. lk_c1d ) ) & 236 & CALL ctl_stop( ' Choose only one surface pressure gradient scheme with a key cpp' ) 237 IF( ( lk_dynspg_ts .OR. lk_dynspg_exp ) .AND. ln_isfcav ) & 238 & CALL ctl_stop( ' dynspg_ts and dynspg_exp not tested with ice shelf cavity ' ) 239 ! 240 IF( lk_dynspg_exp) nspg = 0 241 IF( lk_dynspg_ts ) nspg = 1 242 IF( lk_dynspg_flt) nspg = 2 203 WRITE(numout,*) ' Explicit free surface ln_dynspg_exp = ', ln_dynspg_exp 204 WRITE(numout,*) ' Free surface with time splitting ln_dynspg_ts = ', ln_dynspg_ts 205 ENDIF 206 ! ! Control of surface pressure gradient scheme options 207 ; nspg = np_NO ; ioptio = 0 208 IF( ln_dynspg_exp ) THEN ; nspg = np_EXP ; ioptio = ioptio + 1 ; ENDIF 209 IF( ln_dynspg_ts ) THEN ; nspg = np_TS ; ioptio = ioptio + 1 ; ENDIF 210 ! 211 IF( ioptio > 1 ) CALL ctl_stop( 'Choose only one surface pressure gradient scheme' ) 212 IF( ioptio == 0 ) CALL ctl_warn( 'NO surface pressure gradient trend in momentum Eqs.' ) 213 ! 214 IF( ln_dynspg_ts .AND. ln_isfcav ) CALL ctl_stop( ' dynspg_ts not tested with ice shelf cavity ' ) 243 215 ! 244 216 IF(lwp) THEN 245 217 WRITE(numout,*) 246 IF( nspg == 0) WRITE(numout,*) ' explicit free surface'247 IF( nspg == 1) WRITE(numout,*) ' free surface with time splitting scheme'248 IF( nspg == 2 ) WRITE(numout,*) ' filtered free surface'249 ENDIF 250 251 #if defined key_dynspg_flt 252 CALL solver_init( nit000 ) ! Elliptic solver initialisation253 #endif 254 ! ! Control of hydrostatic pressure choice255 IF( lk_dynspg_ts .AND. ln_dynhpg_imp ) CALL ctl_stop( 'Semi-implicit hpg not compatible with time splitting' )218 IF( nspg == np_EXP ) WRITE(numout,*) ' explicit free surface' 219 IF( nspg == np_TS ) WRITE(numout,*) ' free surface with time splitting scheme' 220 IF( nspg == np_NO ) WRITE(numout,*) ' No surface surface pressure gradient trend in momentum Eqs.' 221 ENDIF 222 ! 223 IF( nspg == np_TS ) THEN ! split-explicit scheme initialisation 224 CALL dyn_spg_ts_init ! do it first: set nn_baro used to allocate some arrays later on 225 IF( dyn_spg_ts_alloc() /= 0 ) CALL ctl_stop('STOP', 'dyn_spg_init: failed to allocate dynspg_ts arrays' ) 226 IF( neuler/=0 .AND. ln_bt_fw ) CALL ts_rst( nit000, 'READ' ) 227 ENDIF 256 228 ! 257 229 IF( nn_timing == 1 ) CALL timing_stop('dyn_spg_init')
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