WRF Model Update 2.1.2
WRF model tar file has been updated to Version
2.1.2 on January 30, 2006.
The SI and V2.1 real/ideal output are
OK to use with the new wrf.exe.
Also see 'Known
Problems' in this release.
In this new tar file, the following bug fixes
and updates are provided.
Physics:
PBL:
- YSU: minor correction to entrainment and division
by small number (see 'Known Problems and Fixes' for further correction).
- MYJ: Correct the computation of mixing layer depth to eliminate
2-delta-t oscillation in time that occurred in some cases. No
other noticable impact on forecast results.
Surface layer physics:
- MYJSFC: Move ZSLT out of iteration loop for
sfc exchange over land,
initialization.
Microphysics
- Bug fixes for Thompson scheme: correction
for snow/rain accretion process (posted since Nov 21, 2005)
Cumulus schemes:
- Cloud ice and snow tendencies from KF/GD are
passed back to solver (posted since Nov 16, 2005).
- GD: correction for latent heat release constant, affect moist
static profile computation.
- BMJ: Fix computations of saturation sp. hum. for very cold T.
Atmospheric radiation:
- GSFC sw radiation: improved pressure input
for robustness.
- GFDL radiation: stop when combined with non-Ferrier scheme.
Dynamics/Diffusion/Filter Options:
- cfl prints updated and reduced - print only
when the model becomes unstable.
- Fix for km_opt = 3: correction for a factor in some terms.
- Correction for diagnosing w when using hydrostatic option without
using a microphysics scheme.
Nesting/Restart:
- Program real handles nest in this
version. Only one real job is run for all nests that
start at the coarse domain initial time. (Thanks to Liantang
Deng of CMA, China for providing the modification.)
- Restart with SST update option from a single file is fixed.
Software:
- RSL_LITE: modified to improve message passing performance and
scaling on larger number of processors. Periodic boundaries in
X-dimension now also supported, so the only thing left that RSL
supports that RSL_LITE does not
is parallel transposes.
- ESMF time manager: upgraded and fixed to deal with long runs,
such as those for regional climate simulations. In addition, a
unit test suite has been added and code has been refactored to
improve robustness, maintainability, and extensibility.
- io_quilting: allow multiple output server groups.
- auxiliary history output file fix.
- Check time info when inputting all files. The programs will
stop when time information in the input file does not match those
specified in the namelist.
- Grib 1: correct latitute value at south pole.
Known Problems
In WRF V2.1.2
Previous Update
WRF V2.1.1.
WRF V2.1.
WRF V2.0.
