WRF 2014 Major Release

WRF Release Information

The next major WRF release (tentatively Version 3.6) will be made in Spring 2014. Developers seeking to have their codes for new capabilities considered for this must review Information for Code Contributors. Prospective contributors may write to wrfhelp@ucar.edu for information and for contacting the Developers' Committee, which oversees code contributions to the WRF system and manages the WRF repository. Both the Developers' Committee and the Release Committee, which oversees the release process, are described in WRF Code Repository and Release Administration.


Candidate Features and Contributions— WRF 2014 Major Release

A partial list of potential features for the release is shown below. Ultimate inclusion of any code or feature, however, is dependent on the code's following testing and preparation requirements and meeting the deadlines for submission, testing, and revision. Developers may have code considered for the release as long as the timeline and the procedures for contribution (see Information for Code Contributors) are met. As described in that document and in Testing Information for Contributors, developers and contributors may contact wrfhelp@ucar.edu for information on providing their code to a member of the Developers' Committee and on preparing and testing their code for submission.

  • Coupler interface
  • Physics: HUJI microphysics, aerosol modificaitons for RRTMG and Goddard SW, Noah MP groundwater option
  • WRFDA: New radiance observations (e.g., GOES)
  • WRF-Chem: Removal of undocumented features, improved capabilities of existing packages, changes to handling of anthropogenic emissions
  • WRF-Hydro: Noah MP with WRF-Hydro, CLM interface
  • HWRF: Multiple storm-following nests
  • UPP: New compile option for postprocessor use

Timeline— WRF 2014 Major Release

The timeline for the release is as follows. "RC" refers to the Release Committee; "DC" refers to the Developers' Committee. "R" refers to the target release date.

Early September 2013

Approx. 6-mo advance date (R-6m)

  • Users notified of release and provided information on dates and where to find requirements, procedures, and further details.
  • RC begins meetings for release cycle.

September 30, 2013

  • Notice of intent to submit code due from potential contributors.

November 1, 2013

Approx. 4-mo advance date (R-4m)

  • New code or modifications from outside contributors must be through the required testing and provided to the point of contact or the DC.

December 1, 2013

Approx. 3-mo advance date (R-3m)

  • Repository frozen (bugfixes excepted).
  • Check on new features for the release is discussed by the RC and DC.

Late January 2014

  • First friendly-user release. Preliminary code made available for testing.

Late February 2014

  • Second friendly-user release. Code made available for testing.
  • Remaining bug fixes implemented.
  • Full set of regression tests run on machines at NCAR.
  • Weekly RC meetings.

Early March 2014

  • Final round of large testing. RC and DC meetings focus on status of code and testing.

Mid-March 2014

  • DC certifies code (final approval) for release. Code packaged and staged for release.

Late March 2014

  • Release.


  • Release Committee

    The WRF Release Committee oversees the major releases of WRF. It is described in the policies for NCAR's administration of the WRF code in WRF Code Repository and Release Administration. The members are listed below.

    Jordan Powers, NCAR/MMM— Chairman
    Michael Barlage, NCAR/RAL
    Tom Black, NOAA/NCEP
    Jimy Dudhia, NCAR/MMM
    Dave Gill, NCAR/MMM
    Georg Grell, NOAA/ESRL
    Steven Peckham, NOAA/ESRL
    Don Stark, DTC
    Wei Wang, NCAR/MMM
    Jamie Wolff, DTC
    Wei Yu, NCAR/RAL
    Xin Zhang, NCAR/MMM