Changes between Initial Version and Version 1 of Milestones/New_Surface_Module

Timestamp:

2016-07-06T12:17:12+02:00 (8 years ago)

Author:

nicolasmartin

Comment:

--

Milestones/New_Surface_Module

@@ +1 @@
+= Milestone New Surface Module =
+----
+== Information about new surface module ==
+[[Timestamp]]
+
+[[Color(white,red, STILL TO DO)]]
+
+{{{
+- For freeze(:,:) array: change this name into fr_ice_cover(:,:) and make its declaration into sbc_oce.F90 [[BR]]
+- in sbcice_if:F90: fr_ice_cover(:,:) = zicover
+- in sbcice_lim_2.F90: fr_ice_cover(:,:) = 1. - frld(:,:)
+- in sbcice_lim_3.F90: fr_ice_cover(:,:) = at_i(:,:) (A CHECKER)
+- in other case set it to zero into sbcmod.F90 (nn_ice parameter) ++ add comments about this field in output.
+- move the print control from limdyn.F90 into limrhg.F90
+- add the 2m option for Bulk CORE
+- move the CALL sbc_mod from step.F90 to opa.F90 to make easier the coupling with any other sea-ice model.
+- add the management of fields for interannual runs
+DONE: - Ajouter le seuillage sur le calcul du  flux de chaleur latente dans CORE comme c'est fait dans CLIO.
+DONE: - Use the tmask(:,:) in the computatin of wind speed zwind_speed_t in sbcblk_core.F90 but replace (2. - tmask(:,:))
+in the computation of wind stress utau & vtau by (2. - MIN(tmask(i,j),tmask(i+1,j) ) ) (for utau in tis case)
+DONE: - add the computation of Sea-ice cover (freeze(:,:) array) = (1. -frld(:,:)) somewhere maybe into limsbc.F90 module since it is saved in diawri.F90
+DONE: - check freshwater budget
+}}}
+For the climatological run:[[BR]]
+
+{{{
+- Add New TKE (the wind speed must be saved in sbcblk_core.F90 and a even when no bulk are used), 
+check also the latitude dependence of the Kz background coefficient.
+- aadd the Kz tides (2 algo.)
+- add three lenght waves (RGB) and ocean color data
+- modifications related to the cross-land advection over straits.
+- advective BBL ?
+- in daymod.F90, add a case to switch either to 365 or 366 days.
+- Add an other case in sbcfwb in which we just adjust the precip to close the freswater budget. (RISKY)
+}}}
+Thur Feb 14 16:31:59 2008[[BR]]
+
+ * Other bug in limdyn.F90 from the REF_CORE code; there is a wrong  indices shift in the computation
+
+of the wind module ust2s() on T-points using ui_ice()-ui_oce() at I-points. It should be as below:[[BR]]
+
+{{{
+        ! computation of friction velocity
+         DO jj = 2, jpjm1
+            DO ji = 2, jpim1
+
+!CT start SDP6
+               zu_ice   = u_ice(ji+1,jj+1) - u_oce(ji+1,jj+1)
+               zv_ice   = v_ice(ji+1,jj+1) - v_oce(ji+1,jj+1)
+!CT SDP6              zu_ice   = u_ice(ji-1,jj-1) - u_oce(ji-1,jj-1)
+!CT SDP6              zv_ice   = v_ice(ji-1,jj-1) - v_oce(ji-1,jj-1)
+               zt11  = rhoco * ( zu_ice * zu_ice + zv_ice * zv_ice )
+
+               zu_ice   = u_ice(ji,jj+1) - u_oce(ji,jj+1)
+               zv_ice   = v_ice(ji,jj+1) - v_oce(ji,jj+1)
+!CT SDP6              zu_ice   = u_ice(ji-1,jj) - u_oce(ji-1,jj)
+!CT SDP6              zv_ice   = v_ice(ji-1,jj) - v_oce(ji-1,jj)
+               zt12  = rhoco * ( zu_ice * zu_ice + zv_ice * zv_ice )
+
+               zu_ice   = u_ice(ji+1,jj) - u_oce(ji+1,jj)
+               zv_ice   = v_ice(ji+1,jj) - v_oce(ji+1,jj)
+!CT SDP6              zu_ice   = u_ice(ji,jj-1) - u_oce(ji,jj-1)
+!CT SDP6              zv_ice   = v_ice(ji,jj-1) - v_oce(ji,jj-1)
+               zt21  = rhoco * ( zu_ice * zu_ice + zv_ice * zv_ice )
+
+               zu_ice   = u_ice(ji,jj) - u_oce(ji,jj)
+               zv_ice   = v_ice(ji,jj) - v_oce(ji,jj)
+               zt22  = rhoco * ( zu_ice * zu_ice + zv_ice * zv_ice )
+!CT end SDP6
+
+               ztair2 = gtaux(ji,jj) * gtaux(ji,jj) + gtauy(ji,jj) * gtauy(ji,jj)
+
+!CT start SDP5
+               zustm =  0.25 * ( zt11 + zt12 + zt21 + zt22 )
+!CT start               zustm =  ( 1 - frld(ji,jj) ) * 0.25 * ( zt11 + zt12 + zt21 + zt22 )        &
+!CT start                  &  +        frld(ji,jj)   * SQRT( ztair2 )
+!CT start SDP5
+
+               ust2s(ji,jj) = ( zustm / rau0 ) * ( rone + sdvt(ji,jj) ) * tms(ji,jj)
+            END DO
+         END DO
+}}}
+Wed Feb 13 18:45:01 2008[[BR]]
+
+ * Bug correction in ocesbc.F90 module in the computation of the wind-stress between sea-ice and ocean[[BR]]
+{{{
+         ! update the stress below sea-ice area
+         DO jj = 1, jpjm1
+            DO ji = 1, fs_jpim1   ! vertor opt.
+!CT start SDP4
+               ztx         = MAX( freezn(ji,jj), freezn(ji+1,jj) )
+               zty         = MAX( freezn(ji,jj), freezn(ji,jj+1) )
+!CT            ztx         = MAX( freezn(ji,jj), freezn(ji,jj+1) )   ! ice/ocean indicator at U- and V-points
+!CT            zty         = MAX( freezn(ji,jj), freezn(ji+1,jj) )
+!CT end SDP4
+               ztaux       = 0.5 *( ftaux(ji+1,jj) + ftaux(ji+1,jj+1) ) ! ice-ocean stress at U- and V-points
+               ztauy       = 0.5 *( ftauy(ji,jj+1) + ftauy(ji+1,jj+1) )
+               taux(ji,jj) = (1.-ztx) * taux(ji,jj) + ztx * ztaux    ! stress at the ocean surface
+               tauy(ji,jj) = (1.-zty) * tauy(ji,jj) + zty * ztauy
+            END DO
+         END DO
+}}}
+
+Tue Jan 14 10:15:46 2008
+
+Name of variables outputs by the sea-ice model.
+
+{{{
+lim_wri_init : Ice parameters for outputs
+ ~~~~~~~~~~~~
+     number of fields to be stored         noumef =   19
+            title                            name     unit      Saving (1/0)     multiplicative constant       additive constant
+ 1  Snow thickness                        isnowthi      m           1            1.000000000000000            0.000000000000000D+00
+ 2  Ice thickness                         iicethic      m           1            1.000000000000000            0.000000000000000D+00
+ 3  Ice produced                          iiceprod      m/kt        1            1.000000000000000            0.000000000000000D+00
+ 4  Ice concentration                     ileadfra      %           1            -1.000000000000000            1.000000000000000
+ 5  Ice temperature                       iicetemp      C           1            1.000000000000000            -273.1500000000000
+ 6  Oceanic flux at the ice base          ioceflxb      w/m2        1            1.000000000000000            0.000000000000000D+00
+ 7  Ice velocity u                        iicevelu      m/s         1            1.000000000000000            0.000000000000000D+00
+ 8  Ice velocity v                        iicevelv      m/s         1            1.000000000000000            0.000000000000000D+00
+ 9  Sea surface temperature               isstempe      C           1            1.000000000000000            -273.1500000000000
+10  Sea surface salinity                  isssalin      PSU         1            1.000000000000000            0.000000000000000D+00
+11  Total flux at ocean surface           iocetflx      w/m2        1            1.000000000000000            0.000000000000000D+00
+12  Solar flux at ocean surface           iocesflx      w/m2        1            1.000000000000000            0.000000000000000D+00
+13  Non-solar flux at ocean surface       iocwnsfl      w/m2        1            1.000000000000000            0.000000000000000D+00
+14  Salt flux at ocean surface            iocesafl      kg/m2/kt    1            1.000000000000000            0.000000000000000D+00
+15  Wind stress u                         iocestru      Pa          1            1.000000000000000            0.000000000000000D+00
+16  Wind stress v                         iocestrv      Pa          1            1.000000000000000            0.000000000000000D+00
+17  Solar flux at ice/ocean surface       iicesflx      w/m2        1            1.000000000000000            0.000000000000000D+00
+18  Non-solar flux at ice/ocean surface   iicenflx      w/m2        1            1.000000000000000            0.000000000000000D+00
+19  Snow precipitation                    isnowpre      kg/day      1            1.000000000000000            0.000000000000000D+00
+}}}
+Tue Jan 7 15:43:32 2008
+
+{{{
+- For the 10 years run, use monthly values for precip and snow without time interpolation between 
+months because it is not well done in flx_core.h90 for leapyear
+}}}
+Mon Jan 7 11:30:30 2008
+
+{{{
+- when switching to nbit_cmp=0 one must force the field erp(:,:) to zero in the reference code
+oce_sbc_dmp() subroutine to avoid SSS restoring when key_dtasal is active since it doesn't occur 
+in the New SBC module.
+- the switch of ln_limdyn=.true. seems also good.
+}}}
+Have a look here to see some difference plots: [wiki:private/NewSurfaceModule]
+
+Thu Jan 3 17:24:23 2008
+
+{{{
+- The bug below is replaced by the following lines into sbcblk_core.F90
+         emp (:,:) = zevap(:,:) - sf(jp_prec)%fnow(:,:) * tmask(:,:,1)
+         emps(:,:) = zevap(:,:) - sf(jp_prec)%fnow(:,:) * tmask(:,:,1)
+as before and into limsbc.F90
+            zemp = + emp(ji,jj)     *         frld(ji,jj)     &   !  e-p budget over open ocean fraction 
+               &   - tprecip(ji,jj)  * ( 1. - frld(ji,jj) )      &   !  liquid precipitation reaches directly the ocean
+               &   + sprecip(ji,jj) * ( 1. - pfrld(ji,jj) )    &   !  taking into account change in ice cover within the time step
+               &   + rdmsnif(ji,jj) / rdt_ice                      !  freshwaterflux due to snow melting
+
+
+- Potential BUG in sbcblk_core.F90, add the following lines concerning the emp() & emps() computation 
+!CT start
+      IF( lk_ice_lim )   THEN
+!CDIR COLLAPSE
+         emp (:,:) = zevap(:,:) 
+         emps(:,:) = zevap(:,:)
+      ELSE
+!CDIR COLLAPSE
+         emp (:,:) = zevap(:,:) - sf(jp_prec)%fnow(:,:) * tmask(:,:,1)
+         emps(:,:) = zevap(:,:) - sf(jp_prec)%fnow(:,:) * tmask(:,:,1)
+      ENDIF
+!CT end
+because in limsbc.F90 we do: 
+            zemp = + emp(ji,jj)     *         frld(ji,jj)      &   !  e-p budget over open ocean fraction 
+               &   - tprecip(ji,jj)                            &   !  liquid precipitation reaches directly the ocean
+               &   + sprecip(ji,jj) * ( 1. - pfrld(ji,jj) )    &   !  taking into account change in ice cover within the time step
+               &   + rdmsnif(ji,jj) / rdt_ice                      !  freshwaterflux due to snow melting
+
+- in step.F90, line "adatrj = adatrj + rdt/86400._wp" seems to be useless, to remove ???
+- modification in daymod.F90 to ensure restartability. test aver 14 days with ORCA2_LIM: check OK
+- check that data read when begening a run the 8th day are strictly the same than those read when restarting the 8th day: check OK
+- Remove useless CALL to day(nit000) into opa.F90 module since it is done in istate_init CALL day(-1) 
+}}}
+Tue Nov 6 16:00:30 2007
+
+{{{
+- modifcations to perfom into the sbcana.F90 module for the GYRE configuration:
+}}}
+Mon Nov 5 16:00:30 2007
+
+{{{
+- Correct following bug:
+            zemp = + emp(ji,jj)     *         frld(ji,jj)      &   !  e-p budget over open ocean fraction 
+!!gm              &   - tprecip(ji,jj)                            &   !  liquid precipitation reaches directly the ocean
+               &   - tprecip(ji,jj) * ( 1. -  frld(ji,jj) )    &   !  liquid precipitation reaches directly the ocean
+               &   + sprecip(ji,jj) * ( 1. - pfrld(ji,jj) )    &   !  taking into account change in ice cover within the time step
+               &   + rdmsnif(ji,jj) / rdt_ice                      !  freshwaterflux due to snow melting 
+               !                                                   !  ice-covered fraction:
+
+- in daymod.F90 ( kt == -1 ) is NOT A BUG !!!!!, add "CALL day( -1 )" into istate.F90 module for the calendar initialisation
+Schematic view of calling sequence with the new organisation   
+step |
+        |
+        `- CALL sbc | (sbcmod.F90)
+                    |- CALL sbc_init 
+                    |- CALL sbc_ssm  (sbcssm.F90) 
+                    |- CALL sbc_blk_core | (sbcblk_core.F90)
+                    |                    |- CALL fld_read     (fldread.F90)
+                    |                    `- CALL blk_oce_core (sbcblk_core.F90) >>>> OUT = qsr, qns, emp, emps, utau, vtau OVER OCEAN
+                    | - CALL sbc_ice_lim | (sbcblk_core.F90)
+                    |                    |- CALL ice_init
+                    |                    |- CALL blk_albedo (albedo.F90)
+                    |                    |- CALL blk_ice_core (sbcblk_core.F90)
+                    |                    |- CALL lim_rst_opn
+                    |                    |- CALL lim_dyn |
+                    |                    |               |- CALL lim_dyn_init
+                    |                    |               `- CALL lim_rhg
+                    |                    |- CALL lim_trp
+                    |                    |- CALL lim_dmp
+                    |                    |- CALL lim_thd |
+                    |                    |               |- CALL lim_thd_init
+                    |                    |               |- CALL lim_thd_zdf
+                    |                    |               `- CALL lim_thd_lac
+                    |                    |- CALL lim_sbc >>>> OUT = qsr, qns, emp, emps, utau, vtau UNDER SEA-ICE
+                    |                    |- CALL lim_dia
+                    |                    |- CALL lim_wri
+                    |                    `- CALL lim_rst_write
+                    |- CALL sbc_ssr (sbcssr.F90)
+                    |- CALL sbc_rnf (sbcrnf.F90)
+                    |- CALL sbc_fwb (sbcfwb.F90)
+                    `- CALL sbc_clo (sbcclo.F90)
+}}}
+{{{
+- transform CALL flx_blk_albedo into blk_albedo in limsbc.F90
+}}}
+Mon Nov 5 16:00:30 2007
+
+{{{
+- correct the bug on the re-initialisation to zero of mean fields arrays ssX_m() in sbcssm.F90. 
+It should be: IF( MOD(kt-2,nn_fsbc) == 0 ) ... instead of IF( MOD(kt,nn_fsbc) == 0 )
+         ELSEIF( MOD( kt - 2 , nn_fsbc ) == 0 ) THEN      !   Initialisation: New mean computation   !
+            !                                             ! ---------------------------------------- !
+            ssu_m(:,:) = 0.e0      ! reset to zero ocean mean sbc fields
+            ssv_m(:,:) = 0.e0
+            sst_m(:,:) = 0.e0
+            sss_m(:,:) = 0.e0
+         ENDIF
+}}}
+Wed Oct 31 18:50:05 2007
+
+{{{
+- bug in iceini.F90, nn_fsbc param. is not known when passing into ice_init() subroutine, this param. is only read
+ in sbc_init called when time loop start in step.F90 module.
+- move the CALL ice_init line into sbcice_lim.F90 module and remove it from opa.F90 
+- remove the "mask multiplication" 1- frld() applied to field tprecip when computing emp(field in lim_sbc() subroutine
+}}}
+Wed Oct 31 14:59:05 2007
+
+{{{
+- change nn_sst & nn_sss into nn_sstr & nn_sssr into sbcssr.F90 module
+}}}
+Thu Oct 25 09:15:20 2007
+
+{{{
+- think to update the CORE bulk with the reference one (ln_2m, n_alpha)
+- correct bug into daymod.F90 module test "IF (kt == -1 ) into IF (kt == nit000)
+- remove the nn_fld parameter from the namsbc_core namelist
+- remove the nn_runoff parameter from the namsbc namelist
+- add the namsbc_rnf namelist with following parameters:
+nn_runoff  = 1       !: runoffs flag
+rn_hrnf    = 0.e0    !: runoffs, depth over which enhanced vertical mixing is used
+rn_avt_rnf = 0.e0    !: runoffs, value of the additional vertical mixing coef. [m2/s]
+cn_dir     = './'    !: Root directory for location of ssr files
+sn_rnf               !: informations about the runoff file to be read
+sn_cnf               !: informations about the runoff mouth file to be read
+- adpat the namsbc namelist in adding ln_dm2dc, nn_ice, nn_fwb, ln_rnf: imply modifications into sbcmod.F90, sbcrnf.F90
+}}}
+Tue Oct 24311:09:08 2007
+
+{{{
+- which value of roatation angle angv should be applied to the wind stress & to the sea-ice velocity ?
+- cpp key_lim_fdd doesn't exist anymore, only key_ice_lim remains
+- qla, qlw & qsb must be commented in diawri.F90 module
+- remove the '''nrunoff''' parameter from the namrun ocean namelist
+- remove the nfice and nfbulk parameters from the namdom ocean namelist
+}}}
+----