From 1abe882f665811d11ea47a8b717b1b6a4ceedb29 Mon Sep 17 00:00:00 2001
From: "Judy.K.Henderson" <Judy.K.Henderson@noaa.gov>
Date: Thu, 28 Mar 2024 20:37:24 +0000
Subject: [PATCH]  Change dt_inner to 50 when running aerosol-aware Thompson

---
 FV3GFSwfm/rt_v17p8_ugwpv1_c3_mynn/config.fcst | 4 ++--
 INFO                                          | 6 ++++++
 parm/config/gfs/config.fcst                   | 4 ++--
 3 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/FV3GFSwfm/rt_v17p8_ugwpv1_c3_mynn/config.fcst b/FV3GFSwfm/rt_v17p8_ugwpv1_c3_mynn/config.fcst
index a4c4ee8072..ee1077c1b3 100644
--- a/FV3GFSwfm/rt_v17p8_ugwpv1_c3_mynn/config.fcst
+++ b/FV3GFSwfm/rt_v17p8_ugwpv1_c3_mynn/config.fcst
@@ -221,8 +221,8 @@ case ${imp_physics} in
 
         if [[ "${CCPP_SUITE}" == "FV3_GFS_v17_p8_ugwpv1_mynn" || "${CCPP_SUITE}" == "FV3_GFS_v17_p8_ugwpv1_c3_mynn" || "${CCPP_SUITE}" == "FV3_GFS_v17_p8_mynn" || "${CCPP_SUITE}" == "FV3_GFS_v17_p8_c3_mynn" || 
               "${CCPP_SUITE}" == "FV3_GFS_v17_p8_thompson" ]] ; then
-          #JKH  keep dt_inner $DELTIM/2 (75) if running aerosol-aware Thompson
-          export dt_inner=$((DELTIM/2))
+          #JKH  set dt_inner to 50 if running aerosol-aware Thompson
+          export dt_inner=50
           export ltaerosol=".true."
           export FIELD_TABLE="${HOMEgfs}/parm/ufs/fv3/field_table_thompson_aero_tke${tbp}"
         else
diff --git a/INFO b/INFO
index 5b2f183af5..a667b9aa10 100644
--- a/INFO
+++ b/INFO
@@ -1,3 +1,9 @@
+03-28-24
+========
+  change dt_inner to 50 for aerosol aware Thompson
+
+  effective 00Z 03/29/24
+
 03-20-24
 ========
   update files for Rocky8 OS
diff --git a/parm/config/gfs/config.fcst b/parm/config/gfs/config.fcst
index a4c4ee8072..ee1077c1b3 100644
--- a/parm/config/gfs/config.fcst
+++ b/parm/config/gfs/config.fcst
@@ -221,8 +221,8 @@ case ${imp_physics} in
 
         if [[ "${CCPP_SUITE}" == "FV3_GFS_v17_p8_ugwpv1_mynn" || "${CCPP_SUITE}" == "FV3_GFS_v17_p8_ugwpv1_c3_mynn" || "${CCPP_SUITE}" == "FV3_GFS_v17_p8_mynn" || "${CCPP_SUITE}" == "FV3_GFS_v17_p8_c3_mynn" || 
               "${CCPP_SUITE}" == "FV3_GFS_v17_p8_thompson" ]] ; then
-          #JKH  keep dt_inner $DELTIM/2 (75) if running aerosol-aware Thompson
-          export dt_inner=$((DELTIM/2))
+          #JKH  set dt_inner to 50 if running aerosol-aware Thompson
+          export dt_inner=50
           export ltaerosol=".true."
           export FIELD_TABLE="${HOMEgfs}/parm/ufs/fv3/field_table_thompson_aero_tke${tbp}"
         else