change default FNMSKH to high-res masks (#16)

This merge references #14 

set FNMSKH=${FNMSKH:-${FIXam}/global_slmask.t1534.3072.1536.grb} instead of FNMSKH=${FNMSKH:-${FIXam}/seaice_newland.grb} to use high-res land-sea mask in global_chgres.sh and global_cycle.sh for interpolation of climatological SST etc.

This is needed to reduce lake temperature biases for GFS.v16 development.

ush/global_chgres.sh

@@ -300,7 +300,7 @@ FNVMNC=${FNVMNC:-${FIXam}/global_shdmin.0.144x0.144.grb}
 FNVMXC=${FNVMXC:-${FIXam}/global_shdmax.0.144x0.144.grb}
 FNSLPC=${FNSLPC:-${FIXam}/global_slope.1x1.grb}
 FNABSC=${FNABSC:-${FIXam}/global_snoalb.1x1.grb}
-FNMSKH=${FNMSKH:-${FIXam}/seaice_newland.grb}
+FNMSKH=${FNMSKH:-${FIXam}/global_slmask.t1534.3072.1536.grb}
 LANDICE_OPT=${LANDICE_OPT:-2}
 CLIMO_FIELDS_OPT=${CLIMO_FIELDS_OPT:-3}
 SOILTYPE_INP=${SOILTYPE_INP:-"zobler"}

ush/global_chgres_driver.sh

@@ -191,7 +191,7 @@ export FNVEGC=${FIXam}/global_vegfrac.0.144.decpercent.grb
 export FNVMNC=${FIXam}/global_shdmin.0.144x0.144.grb
 export FNVMXC=${FIXam}/global_shdmax.0.144x0.144.grb
 export FNSLPC=${FIXam}/global_slope.1x1.grb
-export FNMSKH=${FIXam}/seaice_newland.grb
+export FNMSKH=${FIXam}/global_slmask.t1534.3072.1536.grb
 export FNSMCC=$FIXam/global_soilmgldas.statsgo.t${JCAP_CASE}.${LONB_SFC}.${LATB_SFC}.grb
 export FNSOTC=$FIXam/global_soiltype.statsgo.t${JCAP_CASE}.${LONB_SFC}.${LATB_SFC}.rg.grb
 export FNVETC=$FIXam/global_vegtype.igbp.t${JCAP_CASE}.${LONB_SFC}.${LATB_SFC}.rg.grb

ush/global_cycle.sh

@@ -286,7 +286,7 @@ FNABSC=${FNABSC:-${FIXam}/global_mxsnoalb.uariz.t$JCAP_CASE.$LONB_CASE.$LATB_CAS
 FNVMNC=${FNVMNC:-${FIXam}/global_shdmin.0.144x0.144.grb}
 FNVMXC=${FNVMXC:-${FIXam}/global_shdmax.0.144x0.144.grb}
 FNSLPC=${FNSLPC:-${FIXam}/global_slope.1x1.grb}
-FNMSKH=${FNMSKH:-${FIXam}/seaice_newland.grb}
+FNMSKH=${FNMSKH:-${FIXam}/global_slmask.t1534.3072.1536.grb}
 GSI_FILE=${GSI_FILE:-"NULL"}
 FNTSFA=${FNTSFA:-${COMIN}/${PREINP}sstgrb${SUFINP}}
 FNACNA=${FNACNA:-${COMIN}/${PREINP}engicegrb${SUFINP}}