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Second bug fix patch for NU-WF Version 7 "Arthur" (v7lis7-3.5.1-p2) released

The second stable bug fix update to NU-WRF Version 7 (v7lis7-3.5.1-p2) was released on 27 April 2015.

WHAT CHANGED:

  • Bug fixes to using WRF-Chem GOCART without a Grell cumulus scheme (affects cloud fraction field).
  • Updates to LIS MERRA-Land reader code: fixes downward shortwave radiation index, and better handles missing input.
  • Updated Run_MERRA2.csh script to reflect current stream status and to use consistent indentation.
  • Added MERRA2 support in LIS.
  • Added bug fix to GEOS2WPS to handle 3-hourly MERRA2 assimilation data.
  • Added run_geos2wrf_merra2_3hrassim.discover.sh script to run GEOS2WRF to process 3-hourly MERRA2 assimilation data (GEOS-5 output as the model is adjusting towards the MERRA2 6-hr analyses via IAU). These data are organized a bit differently than the 6-hr analyses, and it was easier to use GEOS2WRF rather than edit MERRA2WRF. Script only works on Discover, and assumes the user has access to the MERRA2 GMAO directory on Discover.
  • Allow WRF to run with Noah LSM selection if REAL processed LIS data. Allows user to switch from WRF-LIS coupling to WRF-Noah-initialized-from-LIS without rerunning LIS to produce GRIB files.
  • Updated LIS/LDT/LVT Makefiles to reduce number of include directories to search through (cuts down on build time).
  • Fixed loops in WRF-Chem convective transport code to skip nv=1 (which is not a valid chemical species), and to loop through all chemical species instead of just gas (that patch is from WRF-Chem 3.6.1).
  • Added value for DELZ_THRESOLD in plume model. Plume model with stop when plume top changes less than 100 meters over ten minutes.
  • Bug fix to prep_chem_sources, resolving conflicting symbols imported from two different modules (detected by Intel 15 compiler).
  • Updated User Guide.

KNOWN BUGS:

  • Grell-Freitas cumulus scheme is sensitive to number of cores used. Behavior is also noted with community WRF 3.5.1 and 3.6.1. NCAR has been notified.
  • WRF changes the terrain field in the lateral boundary zones of each inner nest, LIS/LDT doesn't.
  • Convective-stratiform diagnostic from microphysics is sensitive to number of processors used.

 

 

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