Fix wave restarts

Fixes some issues that were preventing wave restarts from operating
correctly.

First, the wave restart files were not being correctly linked from
`$DATA` to `$DATArestart`. The files are placed in the root of
`$DATA` instead of in `${DATA}/WAVE_RESTART`, so now links for the
individual files are created.

Second, the incorrect filenames were being searches for and copied
as part of a rerun. Filenames were geared towards multigrid waves,
which use the grid names, but single grid just uses a `ww3`. Since
multigrid waves are deprecated in workflow and will soon be removed
(#2637), these were updated only supporting the single-grid option.

These fixes allow forecast segments (and emergency restarts) to
work correctly when waves are on.

Resolves #3001

ush/forecast_det.sh

@@ -93,12 +93,9 @@ UFS_det(){
 
  # Check for WW3 restart availability
  if [[ "${cplwav}" == ".true." ]]; then
- local ww3_grid
- for ww3_grid in ${waveGRD} ; do
- if [[ ! -f "${DATArestart}/WW3_RESTART/${rdate:0:8}.${rdate:8:2}0000.restart.${ww3_grid}" ]]; then
- ww3_rst_ok="NO"
- fi
- done
+ if [[ ! -f "${DATArestart}/WW3_RESTART/${rdate:0:8}.${rdate:8:2}0000.restart.ww3" ]]; then
+ ww3_rst_ok="NO"
+ fi
  fi
 
  # Collective check

ush/forecast_postdet.sh

@@ -340,7 +340,7 @@ WW3_postdet() {
  echo "Copying WW3 restarts for 'RUN=${RUN}' at '${restart_date}' from '${restart_dir}'"
  local ww3_restart_file
  for ww3_grid in ${waveGRD} ; do
- ww3_restart_file="${restart_dir}/${restart_date:0:8}.${restart_date:8:2}0000.restart.${ww3_grid}"
+ ww3_restart_file="${restart_dir}/${restart_date:0:8}.${restart_date:8:2}0000.restart.ww3"
  if [[ ! -f "${ww3_restart_file}" ]]; then
  echo "WARNING: WW3 restart file '${ww3_restart_file}' not found for warm_start='${warm_start}', will start from rest!"
  if [[ "${RERUN}" == "YES" ]]; then
@@ -361,6 +361,15 @@ WW3_postdet() {
  echo "WW3 will start from rest!"
  fi # [[ "${warm_start}" == ".true." ]]
 
+ # Link restart files
+ local restart_file
+ # Use restart_date if it was determined above, otherwise use initialization date
+ for (( vdate = "${restart_date:-${PDY}${cyc}}"; vdate <= forecast_end_cycle;
+ vdate = $(date --utc -d "${vdate:0:8} ${vdate:8:2} + ${restart_interval} hours" +%Y%m%d%H) )); do
+ restart_file="${vdate:0:8}.${vdate:8:2}0000.restart.ww3"
+ ${NLN} "${DATArestart}/WW3_RESTART/${restart_file}" "${restart_file}"
+ done
+
  # Link output files
  local wavprfx="${RUN}wave${WAV_MEMBER:-}"
  if [[ "${waveMULTIGRID}" == ".true." ]]; then

ush/forecast_predet.sh

@@ -556,10 +556,10 @@ WW3_predet(){
  echo "SUB ${FUNCNAME[0]}: WW3 before run type determination"
 
  if [[ ! -d "${COMOUT_WAVE_HISTORY}" ]]; then mkdir -p "${COMOUT_WAVE_HISTORY}"; fi
- if [[ ! -d "${COMOUT_WAVE_RESTART}" ]]; then mkdir -p "${COMOUT_WAVE_RESTART}" ; fi
+ if [[ ! -d "${COMOUT_WAVE_RESTART}" ]]; then mkdir -p "${COMOUT_WAVE_RESTART}"; fi
 
- if [[ ! -d "${DATArestart}/WAVE_RESTART" ]]; then mkdir -p "${DATArestart}/WAVE_RESTART"; fi
- ${NLN} "${DATArestart}/WAVE_RESTART" "${DATA}/restart_wave"
+ if [[ ! -d "${DATArestart}/WW3_RESTART" ]]; then mkdir -p "${DATArestart}/WW3_RESTART"; fi
+ # Wave restarts are linked in postdet to only create links for files that will be created
 
  # Files from wave prep and wave init jobs
  # Copy mod_def files for wave grids