The WRF-Var tar file
has been updated to Version 3.1.1 on July 31, 2009.
In this release, the following new features and updates are provided:
- Radiance data assimilation using K Matrix capability is completed in V3.1.1 release, which dramatically speedup the analysis. To use K Matrix , please set USE_CRTM_KMATRIX=true in wrfvar14@namelist.input. Note: it only applied on CRTM in V3.1.1.
- Improved software portability; only NETCDF library is mandatory if only LITTLE_R formated conventional observational data to be used. To use Prepbufr observational files, just set environmental variable BUFR equal to 1. To use radiance BUFR format data, CRTM or RTTOV is needed.
- Most of the scripts under WRFDA/var/scripts are removed from the main source
code tar file. They can still be downloaded separately. See http://www.mmm.ucar.edu/wrf/users/wrfda/download/tools.html
For compile and run instructions, please refer to the updated User's Guide
