Changeset 10920 for branches/UKMO/dev_r5518_GO6_fix_zemp_ice/NEMOGCM/NEMO/OPA_SRC/SBC/sbccpl.F90

Timestamp:

2019-05-01T11:27:03+02:00 (5 years ago)

Author:

dancopsey

Message:

Use ice fractions from the last coupling time to calculate grid box means of coupled fluxes.

File:

• branches/UKMO/dev_r5518_GO6_fix_zemp_ice/NEMOGCM/NEMO/OPA_SRC/SBC/sbccpl.F90 (modified) (5 diffs)

branches/UKMO/dev_r5518_GO6_fix_zemp_ice/NEMOGCM/NEMO/OPA_SRC/SBC/sbccpl.F90

@@ -54 +54 @@
    USE lib_fortran, ONLY: glob_sum
 
+#if defined key_oasis3
+   USE mod_oasis, ONLY : OASIS_Sent, OASIS_ToRest, OASIS_SentOut, OASIS_ToRestOut
+#else
+   INTEGER                    ::   OASIS_Sent        = -1
+   INTEGER                    ::   OASIS_SentOut     = -1
+   INTEGER                    ::   OASIS_ToRest      = -1
+   INTEGER                    ::   OASIS_ToRestOut   = -1
+#endif
+
    IMPLICIT NONE
    PRIVATE
@@ -200 +209 @@
       !!             ***  FUNCTION sbc_cpl_alloc  ***
       !!----------------------------------------------------------------------
-      INTEGER :: ierr(3)
+      INTEGER :: ierr(4)
       !!----------------------------------------------------------------------
       ierr(:) = 0
@@ -212 +221 @@
       ! Hardwire only two models as nn_cplmodel has not been read in
       ! from the namelist yet.
-      ALLOCATE( xcplmask(jpi,jpj,0:2) , STAT=ierr(3) )   
+      ALLOCATE( xcplmask(jpi,jpj,0:2) , STAT=ierr(3) ) 
+#if defined key_cice
+      ALLOCATE( a_i_last_couple(jpi,jpj,jpl) , STAT=ierr(4) ) 
+#endif
       !
       sbc_cpl_alloc = MAXVAL( ierr )
@@ -1760 +1772 @@
             zemp_ice(:,:) = - frcv(jpr_snow)%z3(:,:,1) * zicefr(:,:)
             DO jl=1,jpl
-               zemp_ice(:,:   ) = zemp_ice(:,:) + frcv(jpr_ievp)%z3(:,:,jl) * a_i(:,:,jl)
+               zemp_ice(:,:   ) = zemp_ice(:,:) + frcv(jpr_ievp)%z3(:,:,jl) * a_i_last_couple(:,:,jl)
             ENDDO
             ! latent heat coupled for each category in CICE
@@ -2269 +2281 @@
          END SELECT
          IF( ssnd(jps_fice)%laction )   CALL cpl_snd( jps_fice, isec, ztmp3, info )
+
+         ! If this coupling was successful then save ice fraction for use between coupling points.
+         ! This is needed for some calculations where the ice fraction at the last coupling point
+         ! is needed.
+         IF( info == OASIS_Sent     .OR. info == OASIS_ToRest .OR.   &
+                     & info == OASIS_SentOut  .OR. info == OASIS_ToRestOut ) THEN
+           IF ( sn_snd_thick%clcat == 'yes' ) THEN
+             a_i_last_couple(:,:,:) = a_i(:,:,:)
+           ENDIF
+         ENDIF
+         
       ENDIF