- Himawari AHI radiance data assimilation
Wang, Y., Z. Liu, S. Yang, J. Min, L. Chen, Y. Chen, and T. Zhang, 2018:
Added value of assimilating Himawari-8 AHI water vapor radiances on analyses
and forecasts for "7.19" severe storm over north China. J. Geophys. Res. Atmos.,
123, https://doi.org/10.1002/2017JD027697.
- 3DVAR and hybrid-3D/4DEnVar now work with moist potential temperature
- Update WRFDA to handle RTTOV v12.1. New emissivity formulations are enabled
as well as HDF-only emissivity atlas files. Compiling WRFDA for RTTOV now
requires an HDF5 library.
- The code-base of CRTM carried with WRFDA is updated from v2.2.3 to v2.3.0.
Starting with V4.0, CRTM coefficient files are NOT included
in any of the WRF or WRFDA tar files. There are two ways to get this data.
1. The subset of CRTM coefficient files can be downloaded from here
2. The full set of CRTM coefficients may be downloaded from here
3. For external users, replace the link ‘var/run/crtm_coeffs’ with the directory
contained in the appropriate tar file. A copy is also available under ~wrfhelp
on the NCAR cheyenne supercomputer (for internal use).
- Enhance the gts_omb_oma diagnostics by appending time slot information after the level information.
- Allow pseudo ob at not-first time slot for 4DVAR.
- New WRFDA namelist options for specifying errors for radar rhv(rrn/rsn/rgr)
- New WRFDA namelist options for turning on/off some diagnostic output.
- Fix to allow assimilation of SSMI TPW contained (prior to Nov 2009) in prepbufr
obs files when ob_format=1 and use_ssmiretrievalobs=.true.
For instructions on compiling and running the latest version of WRFDA, please refer to the updated User's Guide
