Recent Upgrades to WRF SI Softwareand

Demonstration of a General Purpose User Interface to Localize Domains

John Smart, Brent Shaw, Paul Schultz and Paula McCaslin

WRF LSM Workshop

June 24, 2002

Funding Agencies for WRFSI Development

• AFWA

• FAA

• NOAA

WRFSI Software Components

gribprep.exe

gribprep.pl

gridgen_model.exe hinterp.exe vinterp.exe

interp.pl

wrfsi.pl

Grib data

(AVN, Eta,RUC)

topo

land use

others

WRF-ready init/lbc

Reformat Data Define Domain Populate the Domain

Recent Upgrades to WRF Standard Initialization

• Most of the software is very similar to the original v1.0 release (ie., directory setup, installation procedure, and running still the same).

• Added interpolation to support mass coordinate (v_interp.exe)

• Added Arakawa-A (now supports both A and C grids) (gridgen_model.exe)

• SI supports inputs for LSM frozen soil physics.

• Added RUC grib as background/initialization (grib_prep.exe)

• Released better (“more automated”) localization procedure (perl scripts).

• Current tar is WRFSI.TAR.gz wrfsi_20020328.tar.gz which has the mass coordinate interpolation and.

WRFSI Upgrades (Cont)

• Developed domain relocalization GUI– Domain configuration

– Edits wrfsi.nl “hgridspec” section

WRFSI Upgrades (Cont)

• Program gridgen_model now includes:• “new” greenness fraction (0.144 deg resolution);• albedo climatology (from NCEP, 0.144 deg res);• New algorithm for processing albedo, greenness

fraction, and soil temperature data tiles: > Smaller (raw) tiles are grouped into a super tile

allowing horizontal interpolation methods to be applied, particularly for fields that require land-water mask.

Polar Stereographic (Alaska) 10km Land-Use Image

Polar Stereographic (Alaska) 10km Greenness Fraction Image

NOTES

• More at WRF tutorial on Thur 6-27-02 2pm: “How to set up and run WRF SI”

• Latest software has not yet been posted to ftp site although the software is ready for “alpha” testing.

• Terrain, land-use, and soil-type are still processed by the same method as in the original release.- aggregation, averaging, dominant category.

• Still have as a goal to publish the WRFSI.

Potential Future Work

• Nesting • Improve Auto Configure for multiplatform builds• Parallelization• Further Design/Develop the GUI

– Build/Install WRFSI– FTP geography data (tar files)– Submit jobs to cron– What got in (to the analyses)– Configure other fortran namelist