Updates for handling IAU for cold start

- Move DOIAU="NO" to config.stage_ic
- Add similar condition check to forecast_predet.sh

Refs #2865

parm/config/gfs/config.base

@@ -400,7 +400,6 @@ export ENKF_SPREAD="YES"
 
 # Check if cycle is cold starting, DOIAU off, or free-forecast mode
 if [[ "${MODE}" = "cycled" && "${SDATE}" = "${PDY}${cyc}" && ${EXP_WARM_START} = ".false." ]] || [[ "${DOIAU}" = "NO" ]] || [[ "${MODE}" = "forecast-only" && ${EXP_WARM_START} = ".false." ]] ; then
-  export DOIAU="NO" # Force it off for cold-start
   export IAU_OFFSET=0
   export IAU_FHROT=0
   export IAUFHRS="6,"

parm/config/gfs/config.stage_ic

@@ -12,6 +12,10 @@ export BASE_IC="@BASE_IC@" # Platform home for staged ICs
 
 export STAGE_IC_YAML_TMPL="${PARMgfs}/stage/master_gfs.yaml.j2"
 
+if [[ "${MODE}" = "cycled" && "${SDATE}" = "${PDY}${cyc}" && ${EXP_WARM_START} = ".false." ]] || [[ "${MODE}" = "forecast-only" && ${EXP_WARM_START} = ".false." ]] ; then
+  export DOIAU="NO" # Force it off for cold-start
+fi
+
 # Set ICSDIR (if not defined)
 if [[ -z "${ICSDIR}" ]] ; then
 

ush/forecast_det.sh

@@ -25,6 +25,9 @@ UFS_det(){
     DOIAU="NO"
     IAU_OFFSET=0
     model_atmos_start_date_current_cycle=${current_cycle}
+    model_ice_start_date_current_cycle=${current_cycle}
+    model_med_start_date_current_cycle=${current_cycle}
+    model_ocean_start_date_current_cycle=${current_cycle}
 
     # It is still possible that a restart is available from a previous forecast attempt
     # So we have to continue checking for restarts

ush/forecast_predet.sh

@@ -91,7 +91,11 @@ common_predet(){
 
   # Define model start date for current_cycle and next_cycle as the time the forecast will start
   if [[ "${DOIAU:-NO}" == "YES" ]]; then
-    model_start_date_current_cycle="${current_cycle_begin}"
+    if [[ "${MODE}" = "cycled" && "${SDATE}" = "${PDY}${cyc}" && ${EXP_WARM_START} = ".false." ]] || [[ "${MODE}" = "forecast-only" && ${EXP_WARM_START} = ".false." ]] ; then
+      model_start_date_current_cycle="${current_cycle}"
+    else
+      model_start_date_current_cycle="${current_cycle_begin}"
+    fi
     model_start_date_next_cycle="${next_cycle_begin}"
   else
     if [[ "${REPLAY_ICS:-NO}" == "YES" ]]; then
@@ -105,11 +109,11 @@ common_predet(){
   model_atmos_start_date_current_cycle="${model_start_date_current_cycle}"
   model_atmos_start_date_next_cycle="${model_start_date_next_cycle}"
   model_ice_start_date_current_cycle="${model_start_date_current_cycle}"
-  model_ice_start_date_next_cycle="${next_cycle}"
+  model_ice_start_date_next_cycle="${model_start_date_next_cycle}"
   model_med_start_date_current_cycle="${model_start_date_current_cycle}"
-  model_med_start_date_next_cycle="${next_cycle}"
+  model_med_start_date_next_cycle="${model_start_date_next_cycle}"
   model_ocean_start_date_current_cycle="${model_start_date_current_cycle}"
-  model_ocean_start_date_next_cycle="${next_cycle}"
+  model_ocean_start_date_next_cycle="${model_start_date_next_cycle}"
   model_wave_start_date_current_cycle="${current_cycle}"
 
   FHMIN=${FHMIN:-0}