- Timestamp:
- 2017-12-01T05:41:32+01:00 (6 years ago)
- File:
-
- 1 edited
Legend:
- Unmodified
- Added
- Removed
-
branches/UKMO/ROMS_WAD_7832/NEMOGCM/NEMO/OPA_SRC/DYN/wet_dry.F90
r7646 r8865 1 1 MODULE wet_dry 2 3 !! includes updates to namelist namwad for diagnostic outputs of ROMS wetting and drying 4 2 5 !!============================================================================== 3 6 !! *** MODULE wet_dry *** … … 32 35 33 36 REAL(wp), PUBLIC, ALLOCATABLE, DIMENSION(:,:) :: wdmask !: u- and v- limiter 34 REAL(wp), PUBLIC, ALLOCATABLE, DIMENSION(:,:) :: ht_wd !: wetting and drying t-pt depths35 37 ! (can include negative depths) 38 REAL(wp), PUBLIC, ALLOCATABLE, DIMENSION(:,:) :: wdramp, wdrampu, wdrampv ! for hpg limiting 36 39 37 40 LOGICAL, PUBLIC :: ln_wd !: Wetting/drying activation switch (T:on,F:off) 41 REAL(wp), PUBLIC :: rn_wdmin0 !: depth at which wetting/drying starts 42 LOGICAL, PUBLIC :: ln_rwd !: ROMS Wetting/drying activation switch (T:on,F:off) 38 43 REAL(wp), PUBLIC :: rn_wdmin1 !: minimum water depth on dried cells 39 REAL(wp), PUBLIC :: rn_wdmin2 !: toler rance of minimum water depth on dried cells44 REAL(wp), PUBLIC :: rn_wdmin2 !: tolerance of minimum water depth on dried cells 40 45 REAL(wp), PUBLIC :: rn_wdld !: land elevation below which wetting/drying 41 46 !: will be considered 42 47 INTEGER , PUBLIC :: nn_wdit !: maximum number of iteration for W/D limiter 48 LOGICAL, PUBLIC :: ln_rwd_bc !: ROMS scheme: True implies 3D velocities are set to the barotropic values at points 49 !: where the flow is from wet points on less than half the barotropic sub-steps 50 LOGICAL, PUBLIC :: ln_rwd_rmp !: use a ramp for the rwd flux limiter between 2 rn_wdmin1 and rn_wdmin1 (rather than a cut-off at rn_wdmin1) 51 REAL(wp), PUBLIC :: rn_ssh_ref !: height of z=0 with respect to the geoid; 52 REAL(wp), PUBLIC :: rn_ht_0 !: the height at which ht_0 = 0 53 54 LOGICAL, PUBLIC :: ln_wd_diag ! True implies wad diagnostic at chosen point are printed out 55 INTEGER , PUBLIC :: jn_wd_i, jn_wd_j, jn_wd_k ! indices at which diagnostic outputs are generated 43 56 44 57 PUBLIC wad_init ! initialisation routine called by step.F90 … … 58 71 !! ** input : - namwad namelist 59 72 !!---------------------------------------------------------------------- 60 NAMELIST/namwad/ ln_wd, rn_wdmin1, rn_wdmin2, rn_wdld, nn_wdit 73 NAMELIST/namwad/ ln_wd, ln_rwd, rn_wdmin0, ln_rwd, rn_wdmin1, rn_wdmin2, rn_wdld, nn_wdit, ln_wd_diag, ln_rwd_bc, & 74 & rn_ht_0, jn_wd_i, jn_wd_j, jn_wd_k,ln_rwd_rmp 75 61 76 INTEGER :: ios ! Local integer output status for namelist read 62 77 INTEGER :: ierr ! Local integer status array allocation … … 78 93 WRITE(numout,*) '~~~~~~~~' 79 94 WRITE(numout,*) ' Namelist namwad' 80 WRITE(numout,*) ' Logical activation ln_wd = ', ln_wd 95 WRITE(numout,*) ' Logical for NOC wd scheme ln_wd = ', ln_wd 96 WRITE(numout,*) ' Logical for ROMS wd scheme ln_rwd = ', ln_rwd 97 WRITE(numout,*) ' Depth at which wet/drying starts rn_wdmin0 = ', rn_wdmin0 81 98 WRITE(numout,*) ' Minimum wet depth on dried cells rn_wdmin1 = ', rn_wdmin1 82 99 WRITE(numout,*) ' Tolerance of min wet depth rn_wdmin2 = ', rn_wdmin2 83 100 WRITE(numout,*) ' land elevation threshold rn_wdld = ', rn_wdld 84 101 WRITE(numout,*) ' Max iteration for W/D limiter nn_wdit = ', nn_wdit 102 WRITE(numout,*) ' Logical for WAD diagnostics ln_wd_diag = ', ln_wd_diag 103 WRITE(numout,*) ' T => baroclinic u,v = 0 at dry pts: ln_rwd_bc = ', ln_rwd_bc 104 WRITE(numout,*) ' use a ramp for rwd limiter: ln_rwd_rmp = ', ln_rwd_rmp 105 WRITE(numout,*) ' the height (z) at which ht_0 = 0:rn_ht_0 = ', rn_ht_0 106 WRITE(numout,*) ' i-index for diagnostic point jn_wd_i = ', jn_wd_i 107 WRITE(numout,*) ' j-index for diagnostic point jn_wd_j = ', jn_wd_j 108 WRITE(numout,*) ' k-index for diagnostic point jn_wd_k = ', jn_wd_k 85 109 ENDIF 86 110 ! 87 IF(ln_wd) THEN 88 ALLOCATE( wdmask(jpi,jpj), ht_wd(jpi,jpj), STAT=ierr ) 111 IF(ln_wd .OR. ln_rwd) THEN 112 ALLOCATE( wdmask(jpi,jpj), STAT=ierr ) 113 ALLOCATE( wdramp(jpi,jpj), wdrampu(jpi,jpj), wdrampv(jpi,jpj), STAT=ierr ) 89 114 IF( ierr /= 0 ) CALL ctl_stop('STOP', 'wad_init : Array allocation error') 90 115 ENDIF … … 161 186 162 187 IF( tmask(ji, jj, 1) < 0.5_wp ) CYCLE ! we don't care about land cells 163 IF( ht_ wd(ji,jj)> zdepwd ) CYCLE ! and cells which are unlikely to dry188 IF( ht_0(ji,jj)-rn_ssh_ref > zdepwd ) CYCLE ! and cells which are unlikely to dry 164 189 165 190 zflxp(ji,jj) = max(zflxu(ji,jj), 0._wp) - min(zflxu(ji-1,jj), 0._wp) + & … … 168 193 & min(zflxv(ji,jj), 0._wp) - max(zflxv(ji, jj-1), 0._wp) 169 194 170 zdep2 = ht_ wd(ji,jj) + sshb1(ji,jj) - rn_wdmin1195 zdep2 = ht_0(ji,jj) + sshb1(ji,jj) - rn_wdmin1 171 196 IF(zdep2 .le. 0._wp) THEN !add more safty, but not necessary 172 sshb1(ji,jj) = rn_wdmin1 - ht_ wd(ji,jj)197 sshb1(ji,jj) = rn_wdmin1 - ht_0(ji,jj) 173 198 IF(zflxu(ji, jj) > 0._wp) zwdlmtu(ji ,jj) = 0._wp 174 199 IF(zflxu(ji-1,jj) < 0._wp) zwdlmtu(ji-1,jj) = 0._wp … … 180 205 END DO 181 206 207 208 ! slwa 209 ! HPG limiter from jholt 210 wdramp(:,:) = min((ht_0(:,:) + sshb1(:,:) - rn_wdmin1)/(rn_wdmin0 - rn_wdmin1),1.0_wp) 211 ! write(6,*)'wdramp ',wdramp(10,10),wdramp(10,11) 212 !jth assume don't need a lbc_lnk here 213 DO jj = 1, jpjm1 214 DO ji = 1, jpim1 215 wdrampu(ji,jj) = min(wdramp(ji,jj),wdramp(ji+1,jj)) 216 wdrampv(ji,jj) = min(wdramp(ji,jj),wdramp(ji,jj+1)) 217 ENDDO 218 ENDDO 219 !wdrampu(:,:)=1.0_wp 220 !wdrampv(:,:)=1.0_wp 221 ! end HPG limiter 222 223 182 224 183 225 !! start limiter iterations … … 193 235 194 236 IF( tmask(ji, jj, 1) < 0.5_wp ) CYCLE 195 IF( ht_ wd(ji,jj) > zdepwd ) CYCLE237 IF( ht_0(ji,jj) > zdepwd ) CYCLE 196 238 197 239 ztmp = e1e2t(ji,jj) … … 203 245 204 246 zdep1 = (zzflxp + zzflxn) * z2dt / ztmp 205 zdep2 = ht_ wd(ji,jj) + sshb1(ji,jj) - rn_wdmin1 - z2dt * sshemp(ji,jj)247 zdep2 = ht_0(ji,jj) + sshb1(ji,jj) - rn_wdmin1 - z2dt * sshemp(ji,jj) 206 248 207 249 IF( zdep1 > zdep2 ) THEN … … 317 359 318 360 IF( tmask(ji, jj, 1 ) < 0.5_wp) CYCLE ! we don't care about land cells 319 IF( ht_ wd(ji,jj) > zdepwd ) CYCLE ! and cells which are unlikely to dry361 IF( ht_0(ji,jj) > zdepwd ) CYCLE ! and cells which are unlikely to dry 320 362 321 363 zflxp(ji,jj) = max(zflxu(ji,jj), 0._wp) - min(zflxu(ji-1,jj), 0._wp) + & … … 324 366 & min(zflxv(ji,jj), 0._wp) - max(zflxv(ji, jj-1), 0._wp) 325 367 326 zdep2 = ht_ wd(ji,jj) + sshn_e(ji,jj) - rn_wdmin1368 zdep2 = ht_0(ji,jj) + sshn_e(ji,jj) - rn_wdmin1 327 369 IF(zdep2 .le. 0._wp) THEN !add more safety, but not necessary 328 sshn_e(ji,jj) = rn_wdmin1 - ht_ wd(ji,jj)370 sshn_e(ji,jj) = rn_wdmin1 - ht_0(ji,jj) 329 371 IF(zflxu(ji, jj) > 0._wp) zwdlmtu(ji ,jj) = 0._wp 330 372 IF(zflxu(ji-1,jj) < 0._wp) zwdlmtu(ji-1,jj) = 0._wp … … 348 390 349 391 IF( tmask(ji, jj, 1 ) < 0.5_wp) CYCLE 350 IF( ht_ wd(ji,jj) > zdepwd ) CYCLE392 IF( ht_0(ji,jj) > zdepwd ) CYCLE 351 393 352 394 ztmp = e1e2t(ji,jj) … … 358 400 359 401 zdep1 = (zzflxp + zzflxn) * z2dt / ztmp 360 zdep2 = ht_ wd(ji,jj) + sshn_e(ji,jj) - rn_wdmin1 - z2dt * zssh_frc(ji,jj)402 zdep2 = ht_0(ji,jj) + sshn_e(ji,jj) - rn_wdmin1 - z2dt * zssh_frc(ji,jj) 361 403 362 404 IF(zdep1 > zdep2) THEN
Note: See TracChangeset
for help on using the changeset viewer.
