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Update v16.1 release notes for wave fixes
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CatherineThomas-NOAA committed May 3, 2021
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40 changes: 37 additions & 3 deletions docs/Release_Notes.gfs.v16.1.0.txt
Original file line number Diff line number Diff line change
Expand Up @@ -35,6 +35,26 @@ PRELUDE
began assimilating the GeoOptics data so both changes were tested in one
package.

There are several wave related fixes being included in this update. The
first is including the RW-NHC* boundary points which are used in NHC's
offline NWPS system were removed from multi_1 to GFSv16. The second is
to fix the interpolation to the East Pacific wave grid to include all
of the American Samoa islands.


CHANGES TO RESOURCES AND FILE SIZES

Impact of including RW-NHC points is: There should be no impact to the
forecast job timing, however the *wave.out_pnt.points* files in the
wave/rundata com directories will each increase in size by 6MB. The
JGLOBAL_WAVE_POST_BNDPNTBLL and JGLOBAL_WAVE_POST_BNDPNT will now take
approximately 20 minutes longer. The gfswave.tZZz.ibpbull_tar will
increase in size to be 78M, gfswave.tZZz.ibpcbull_tar will now be 42M
and the gfswave.tZZz.ibp_tar file will now be 11 GB.

Impact of East Pacific and global 0p25 wave grid fixes: There are no
impacts in terms of resources or file size.


IMPLEMENTATION INSTRUCTIONS

Expand Down Expand Up @@ -76,6 +96,10 @@ SORC CHANGES

* sorc/
* checkout.sh will checkout the following changed model tags:
* MODEL; tag GFS.v16.0.16 - There are no changes in this tag
compared to operations. The tag number was updated from
tag GFS.v16.0.15 to incorporate the local changes made in operations.

* GSI; tag gfsda.v16.1.0 - See release notes
doc/Release_Notes.gfsda.v16.1.0.txt in the GSI tag for details.

Expand Down Expand Up @@ -110,11 +134,21 @@ FIX CHANGES
doc/Release_Notes.gfsda.v16.1.0.txt in the NOAA-EMC/GSI tag gfsda.v16.1.0
for details.

* For the wave fix to include the RW-NHC-* boundary points for the wave
point output, the following two fix files can be copied to the
fix/fix_wave_gfs folder:
/gpfs/dell2/emc/modeling/noscrub/emc.glopara/git/fv3gfs/fix_wave_gfs_v16.1.1/wave_gfs.buoys
/gpfs/dell2/emc/modeling/noscrub/emc.glopara/git/fv3gfs/fix_wave_gfs_v16.1.1/wave_gfs.buoys.full


RESOURCE INFORMATION
* For the wave fix to the East Pacific wave grid interpolation the following
fix file with fix can be copied to the fix/fix_wave_gfs folder:
/gpfs/dell2/emc/modeling/noscrub/emc.glopara/git/fv3gfs/fix_wave_gfs_v16.1.1/ep_10m_interp.inp.tmpl

* No change from GFS v16.0 in terms of modules, computational resources,
run time, or disk space.
* For the wave fix to include the Persian Gulf the following to fix files
need to be copied to the fix/fix_wave_gfs folder:
/gpfs/dell2/emc/modeling/noscrub/emc.glopara/git/fv3gfs/fix_wave_gfs_v16.1.1/ww3_grid.inp.glo_15mxt
/gpfs/dell2/emc/modeling/noscrub/emc.glopara/git/fv3gfs/fix_wave_gfs_v16.1.1/WHTGRIDINT.bin.glo_15mxt


PRE-IMPLEMENTATION TESTING REQUIREMENTS
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