NU-WRF Version 8 Patch 3 (v8p3-wrf371-lis71rp7) ("Bjerknes Patch 3") was released on 14 November 2016.

WHAT CHANGED:

• Added support for ECMWF T511 Nature run files:
  • UNGRIB now supports N256 Reduced Gaussian Grid GRIB files
  • Added Vtable files for N256 data (w/ and w/o SST)
  • Added ecmwf_coeffs_L91 file listing hybrid sigma-pressure coefficients.
  • Added script for CALC_ECMWF_P preprocessor
• LDT bug fix for compiler warning in ldt/metforcing/cmorph.F90 about external function not given explicit type.
• LIS bug fixes:
  • Fixes for warning in WRFV3/lis/surfacemodels/land/clm2/csm_share/clm2_shr_sys_mod.F90 about unused argument (related to use of preprocessor flags).
  • Fix for warning in WRFV3/lis/surfacemodels/land/mosaic/umd_sibalb.F90 about function not given explicit type.
• G-EDAS:  Updated NWP component to NU-WRF Version 8 Patch 3.

KNOWN BUGS:

• Grell-Freitas cumulus scheme (cu_physics=3) is sensitive to CPU count (inherited from WRF 3.7.1).  No fix.
• LIS only supports up to 3 grids.
• CASA2WRF is not using netCDF4/HDF5 compression in output.
• Intel MPI hangs on Discover for large (> 2000 cpu) jobs.  Use SGI MPT instead for big jobs.
• Bad TEMF PBL restarts (inherited from WRF 3.7.1).  No fix.
• Unphysical results if urban physics only used on some grids (inherited from WRF 3.7.1).  Use urban physics on all grids or on none.