Update gdas_init utility to use 'orog' files with various

combinations of model and ocean resolutions.

Fixes ufs-community#867.

util/gdas_init/config

@@ -44,10 +44,9 @@
 #                or incomplete. So this option may not
 #                always work. Contact [email protected]
 #                if you encounter problems.
-# FRAC_ORO     - To use the latest orographic data, 
-#                set to 'yes', otherwise, set to 'no'.
-#                Note that: the latest orographic data
-#                support both frac_grid and none frac_grid in the UFS 
+# OCNRES       - Ocean grid resolution. To use the 'orog'
+#                files for the coupled model, set to '025',
+#                '050', etc. Otherwise, comment out.
 #
 #-----------------------------------------------------------
 
@@ -67,11 +66,11 @@ LEVS=65
 
 CDUMP=gdas
 
-FRAC_ORO=yes
-
 CRES_HIRES=C192
 CRES_ENKF=C96
 
+OCNRES=100
+
 UFS_DIR=$PWD/../..
 
 OUTDIR=/lfs/h2/emc/stmp/$USER/gdas.init/output
@@ -116,5 +115,5 @@ else
 
 fi
 
-export EXTRACT_DIR yy mm dd hh UFS_DIR OUTDIR CRES_HIRES CRES_ENKF FRAC_ORO
+export EXTRACT_DIR yy mm dd hh UFS_DIR OUTDIR CRES_HIRES CRES_ENKF OCNRES
 export LEVS gfs_ver EXEC_DIR GDAS_INIT_DIR

util/gdas_init/set_fixed_files.sh

@@ -1,23 +1,13 @@
 #!/bin/bash
 
 #---------------------------------------------------------------------------
-# Set directory names and file names for orog data
-# The old and new (support fractional grid) orog data have different file names
+# Set directory names and file names for orog data.
 #---------------------------------------------------------------------------
 
-if [ "${FRAC_ORO:-"no"}" = "yes" ]; then
-  if  [ ${CTAR} == 'C48' ] ; then
-    OCNRES='500'
-  elif [ ${CTAR} == 'C96' ] ; then
-    OCNRES='100'
-  elif [ ${CTAR} == 'C192' ] ; then
-    OCNRES='050'
-  elif [ ${CTAR} == 'C384' ] || [ ${CTAR} == 'C768' ] || [ ${CTAR} == 'C1152' ]; then
-    OCNRES='025'
-  fi
-  ORO_DIR="${CTAR}"
-  ORO_NAME="${CTAR}.mx${OCNRES}_oro_data"
-else
+if [ -z "${OCNRES}" ]; then  # for uncoupled runs.
   ORO_DIR="${CTAR}"
   ORO_NAME="${CTAR}_oro_data"
+else                         # for coupled runs.
+  ORO_DIR="${CTAR}"
+  ORO_NAME="${CTAR}.mx${OCNRES}_oro_data"
 fi