Skip to main content

Banner image of dust, lightening and irrigation

NU-WRF Version 7 "Arthur" Third Bug Fix Release: v7lis7-3.5.1-p3

The third stable bug fix update to NU-WRF Version 7 (v7lis7-3.5.1-p3) was released on 29, June 2015.
WHAT CHANGED:
  • Updated pleaides.cfg to use new generic SGI MPT module on Pleiades. According to NAS, this should prevent future breakage when SGI MPT is upgraded and older versions are removed.
  • Fixed chunking and deflation in GOCART2WRF when writing new chemistry fields to wrfinput and wrfbdy. Also removed unused variables, and reorganized makefiles.
  • Added new temporalInterpolation GEOS2WRF tool, plus script to automate use to interpolate 6-hourly MERRA2 reanalyses from MERRA2WRF to 3-hourly.
  • Upgraded LIS to 7.0rp3.
  • Modified PREP_CHEM_SOURCES to process NASA QFED wildfire emissions. The following species are supported: acet,ald2,alk4,bc,c2h6,c3h6,c3h8,ch2o,ch4,co,co2,mek,nh3,no,oc,pm25,so2.  bc, oc, pm25, and so2 are used by the simple GOCART option in WRF-Chem; the other species are used in gas chemistry options.
  • Modified dynamic dust capability to optionally suppress emission, or to specify model layers to distribute the dust from the surface.
  • Changed sample batch scripts to check if SGI MPT, Intel MPI, or MVAPICH2 is used and invoke the corresponding appropriate run command when starting a MPI program (mpirun, mpiexec, mpiexec_mpt, mpiexec.hydra).
  • Modified Run_MERRA2.csh script to allow user to override base path of MERRA2 data via environment variable. Only works on Discover for select users.
  • Modified ARWPOST to read wrfout files from WRF-Chem.
  • Modified build system to optionally compile WRF for use with Allinea MAP (a code profiler). Only works on Discover.
  • Updated NUWRF User Guide.
See DISCOVER_INSTRUCTIONS.TXT in the main directory for tips on compiling and running on Discover.
 
WHAT IS MISSING:
  • LIS 7.1. A nearly completed merge with NUWRF is on a special branch but did not make this release. Expect this to be added to the next NUWRF tag (perhaps in July?).
  • MERRA2 aerosol support in GOCART2WRF. I'm working on it....
  • Updated CASA2WRF. Jossy is working on it....
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 answers change when using 1-way nesting.
  • 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. A bug fix is pending.
  • WRF with Intel MPI 5 often hangs for large cpu counts on Discover. Recompile and rerun with SGI MPT (and use Haswell nodes) if this applies to you.