Add new write routine that updates records from an

existing file instead of writing an entire new file.

Modify driver script to make copy of the input restart
files for updating.

Fixes ufs-community#761.

sorc/global_cycle.fd/cycle.f90

@@ -712,14 +712,16 @@ SUBROUTINE SFCDRV(LUGB, IDIM,JDIM,LSM,LENSFC,LSOIL,DELTSFC,  &
 ! WRITE OUT UPDATED SURFACE DATA ON THE CUBED-SPHERE TILE.
 !--------------------------------------------------------------------------------
 
- CALL WRITE_DATA(SLIFCS,TSFFCS,SWEFCS,TG3FCS,ZORFCS,         &
-                 ALBFCS,ALFFCS,VEGFCS,CNPFCS,F10M,           &
-                 T2M,Q2M,VETFCS,SOTFCS,USTAR,FMM,FHH,        &
-                 SICFCS,SIHFCS,SITFCS,                       &
-                 TPRCP,SRFLAG,SNDFCS,                        &
-                 VMNFCS,VMXFCS,SLPFCS,ABSFCS,                &
-                 SLCFCS,SMCFCS,STCFCS,                       &
-                 IDIM,JDIM,LENSFC,LSOIL,DO_NSST,NSST)
+ CALL WRITE_DATA_SELECTED_RECORDS(VEGFCS,LENSFC,IDIM,JDIM)
+
+!CALL WRITE_DATA(SLIFCS,TSFFCS,SWEFCS,TG3FCS,ZORFCS,         &
+!                ALBFCS,ALFFCS,VEGFCS,CNPFCS,F10M,           &
+!                T2M,Q2M,VETFCS,SOTFCS,USTAR,FMM,FHH,        &
+!                SICFCS,SIHFCS,SITFCS,                       &
+!                TPRCP,SRFLAG,SNDFCS,                        &
+!                VMNFCS,VMXFCS,SLPFCS,ABSFCS,                &
+!                SLCFCS,SMCFCS,STCFCS,                       &
+!                IDIM,JDIM,LENSFC,LSOIL,DO_NSST,NSST)
 
  IF (DO_NSST) THEN
    DEALLOCATE(NSST%C_0)

sorc/global_cycle.fd/read_write_data.f90

@@ -58,6 +58,7 @@ MODULE READ_WRITE_DATA
  PUBLIC :: READ_GSI_DATA
  PUBLIC :: READ_LAT_LON_OROG
  PUBLIC :: WRITE_DATA
+ PUBLIC :: WRITE_DATA_SELECTED_RECORDS
  public :: read_tf_clim_grb,get_tf_clm_dim
  public :: read_salclm_gfs_nc,get_dim_nc
 
@@ -114,6 +115,50 @@ MODULE READ_WRITE_DATA
    !! @param[in] nsst Data structure containing nsst fields.
    !!
    !! @author George Gayno NOAA/EMC
+
+!> Write out selected surface records to a pre-existing
+!! model restart file (in netcdf).
+ subroutine write_data_selected_records(vegfcs,lensfc,idim,jdim)
+
+ use mpi
+
+ implicit none
+
+ integer, intent(in)              :: lensfc
+ integer, intent(in)              :: idim, jdim
+
+ real, intent(in)                 :: vegfcs(lensfc)
+
+ real :: dum2d(idim,jdim)
+
+ character(len=50) :: fnbgso
+ character(len=3)  :: rankch
+
+ integer           :: myrank, error, ncid, id_var
+
+ call mpi_comm_rank(mpi_comm_world, myrank, error)
+
+ write(rankch, '(i3.3)') (myrank+1)
+
+ fnbgso = "./fnbgso." // rankch
+
+ print*
+ print*,"update OUTPUT SFC DATA TO: ",trim(fnbgso)
+
+ ERROR=NF90_OPEN(TRIM(fnbgso),NF90_WRITE,NCID)
+ CALL NETCDF_ERR(ERROR, 'OPENING FILE: '//TRIM(fnbgso) )
+
+ ERROR=NF90_INQ_VARID(NCID, "vfrac", ID_VAR)
+ CALL NETCDF_ERR(ERROR, 'READING vfrac ID' )
+
+ dum2d = reshape(vegfcs, (/idim,jdim/))
+ error = nf90_put_var( ncid, id_var, dum2d)
+ call netcdf_err(error, 'WRITING vegfcs RECORD' )
+
+ error = nf90_close(ncid)
+
+ end subroutine write_data_selected_records
+
  subroutine write_data(slifcs,tsffcs,swefcs,tg3fcs,zorfcs, &
                        albfcs,alffcs,vegfcs,cnpfcs,f10m, &
                        t2m,q2m,vetfcs,sotfcs,ustar,fmm,fhh, &

ush/global_cycle_driver.sh

@@ -72,7 +72,12 @@ mkdir -p $DATA
 
 for n in $(seq 1 $ntiles); do
   ln -fs $COMIN/$PDY.${cyc}0000.sfc_data.tile${n}.nc      $DATA/fnbgsi.00$n
+
+# Make a copy of the input restart file in the working directory.
+# global_cycle will update the required records for noah-mp.
+  cp $COMIN/$PDY.${cyc}0000.sfc_data.tile${n}.nc $COMOUT/$PDY.${cyc}0000.sfcanl_data.tile${n}.nc
   ln -fs $COMOUT/$PDY.${cyc}0000.sfcanl_data.tile${n}.nc  $DATA/fnbgso.00$n
+
   ln -fs $FIXfv3/C${CRES}/C${CRES}_grid.tile${n}.nc       $DATA/fngrid.00$n
   ln -fs $FIXfv3/C${CRES}/C${CRES}_oro_data.tile${n}.nc   $DATA/fnorog.00$n
   if [[ "$DO_SNO_INC" == ".true." ]] ; then