gammz initialization required

src/science/soilsnow/cbl_soilsnow_init_special.F90

@@ -27,15 +27,12 @@ SUBROUTINE spec_init_soil_snow(dels, soil, ssnow, canopy, met, bal, veg,heat_cap
 REAL, DIMENSION(mp) :: xx, tgg_old, tggsn_old
 REAL(r_2), DIMENSION(mp) :: xxx,deltat,sinfil1,sinfil2,sinfil3
 REAL                :: zsetot
-INTEGER, SAVE :: ktau =0
 REAL :: heat_cap_lower_limit(mp,ms)
 
-ktau = ktau +1
 ! since CMIP5 only ever (potentially) TRUE offline if special initialization
+! requested and then only on first timestep
 IF( .NOT.cable_user%cable_runtime_coupled ) THEN 
 
-   IF( ktau_gl <= 1 ) THEN
-
       ! after discussion with BP
       ! N.B. snmin should exceed sum of layer depths, i.e. .11 m
       ssnow%wbtot = 0.0
@@ -75,18 +72,18 @@ SUBROUTINE spec_init_soil_snow(dels, soil, ssnow, canopy, met, bal, veg,heat_cap
       ssnow%gammzz(:,1) = MAX( (1.0 - soil%ssat) * soil%css * soil%rhosoil &
            & + (ssnow%wb(:,1) - ssnow%wbice(:,1) ) * Ccswat * Cdensity_liq &
            & + ssnow%wbice(:,1) * Ccsice * Cdensity_ice, xx ) * soil%zse(1)
-   END IF
+
 ENDIF  ! if(.NOT.cable_runtime_coupled)
 
 ! this is done in all cases? overwrites gammzz from above and mediates thru 
 ! snowd% (but only for single layer snow)
-IF (ktau <= 1)       THEN
-  xx=heat_cap_lower_limit(:,1)
-  ssnow%gammzz(:,1) = MAX( (1.0 - soil%ssat) * soil%css * soil%rhosoil      &
-        & + (ssnow%wb(:,1) - ssnow%wbice(:,1) ) * Ccswat * Cdensity_liq           &
-        & + ssnow%wbice(:,1) * Ccsice * Cdensity_ice, xx ) * soil%zse(1) +   &
-        & (1. - ssnow%isflag) * Ccgsnow * ssnow%snowd
-END IF
+
+! Evaluated on first timestep offline/ ESM1.5
+xx=heat_cap_lower_limit(:,1)
+ssnow%gammzz(:,1) = MAX( (1.0 - soil%ssat) * soil%css * soil%rhosoil      &
+      & + (ssnow%wb(:,1) - ssnow%wbice(:,1) ) * Ccswat * Cdensity_liq           &
+      & + ssnow%wbice(:,1) * Ccsice * Cdensity_ice, xx ) * soil%zse(1) +   &
+      & (1. - ssnow%isflag) * Ccgsnow * ssnow%snowd
 
 END SUBROUTINE spec_init_soil_snow