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WAVEWATCH III v. 3.14-13 Description of Changes


The EMC WAVEWATCH III® global wave model Multi-1 was decommissioned in NCEP operations on March 22, 2021. It has been replaced by a new configuration of the WAVEWATCH III global wave model, called GFS-Wave, and coupled to the Global Forecast System (GFSv16), as part of the Unified Forecast System.


It is being maintained for archival and verification purposes only.

Here are the details (PDF) on how this will affect users of this site.

Output of the new GFS-Wave model is available on NOMADS and Production FTP

*under gfs.YYYYMMDD/CC/wave/gridded and gfs.YYYYMMDD/CC/wave/station

Graphics of the GFS-Wave model output will become available some time in April on the Model Analysis and Guidance (MAG) site. Note that the current WW3 link on that page is to a preliminary set of GFS-Wave graphics. New graphics with more options will be added with the coming update in May, and will be under GFS-Wave instead of WW3.

NOTICE: The Global Wave Ensemble System (GWES) was discontinued on 23 Sep 2020 and has been replaced by an improved GEFS-Waves, consisting of a one-way nesting of the WAVEWATCH III system with the recently upgraded GFS Ensemble Forecast System. The NOAA press release on the upgrade is here, and information on GEFS is available here.

The GEFSv12 Service Change Notice (issued 8/20/2020, PDF) is here, and you can find information on the evaluation of the GEFS-Waves portion of the GEFS system in the Model Evaluation Group (MEG) Summary page on the GEFSv12 upgrade here.

The model data is available four times a day (0, 6, 12, 18)Z from:
  • Production FTP (gefs.YYYYMMDD -->cycle-->waves)
  • NOMADS (Ocean Models-->GFS Ensemble Wave-->(grib filter or https file download).
Details on the products can be found here (scroll down to GEFS - Wave - Global).

This page includes a general description of changes made to the WAVEWATCH III v. 3.14 software package, followed by a link to a text file containing the differences in the package files. The text file was generated using a diff command within the subversion version control environment. The diff file can be applied as a patch directly on codes belonging to a previous software package version. The WAVEWATCH III package version changes described below are tagged v. 3.14-13. The patch using the diff file below can be applied to original, unchanged code lines from version 3.14-12 that are included in the diff file below.

  Summary of changes

General Descriptor: Split communicator bug fix

model/ftn subdirectory

  • wminitmd.ftn: Fix format 9061 to remove warning. Use MPI_COMM_NULL in checks.
  • wmiopomd.ftn: Use MPI_COMM_NULL in checks.
  • wmgridmd.ftn: Use MPI_COMM_NULL in checks.
  • wmwavemd.ftn: Use MPI_COMM_NULL in checks.

model/bin subdirectory

  • make_MPI: Reset of internal options.
  • comp.Portland Reset of internal options.
  • comp.Intel Reset of internal options.

  diff file

From the directory to be updated, use patch command, set to ignore directories at level one (eg, patch -p1).

Posted October 2, 2012
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Page last modified: Thursday, 13-Dec-2018 15:50:04 UTC