DART_LAB QCEFF

• DART_LAB updated to include QCEFF #739
• NSF NCAR RDA links updated #755
• /glade RDA locations updated #755

Pangu-DART

Pangu-Weather interface for DART

contributed by Dr. Nuo Chen, University of Oklahoma

AMS 2025 poster: Pangu-DART: Enabling Ensemble Kalman Filter Data Assimilation for ML-Based Numerical Weather Prediction Models

Bug-fix: Gamma and Beta Distributions

Bug fixes:

• Beta distribution only supporting standard Beta, bounded 0-1. #717
• Gamma distribution only supporting standard, lower bound 0. #786
• Beta and Gamma bounds are forced in the QCEFF table.

Updates:

• Explicitly setting distribution type, now have UNSET.
• Message about failing to converge changed to E_ALLMSG to be visible
  on all MPI ranks. If you get a significant increase in output, please email [email protected] to let us know
• remove unused test_obs directory #220

Bug-fix MOM6 potential temperature

• MOM6 model_interpolate for potential temperature #773
• Update lorenz workshop input.nmls to v11 #789

Bug-fix 1D obs_diag

• Added a dummy dimension so 1D obs_diag output can be used with
  MATLAB diagnostic tools #230
• Added a notification that probit inflation QCEFF options are ignored
  for RTPS (posterior inflation) #748

Developer tests

• Tests for distribution modules: normal, beta, gamma
• Removed out-of-date tests for state IO

MPAS ATM bug-fixes

• Fixed 2m and 10m fields not being updated - set istatus for VERTISHEIGHT and VERTISLEVEL for convert_vert_distrib_state. #756
  thanks to Matt Wilson for reporting this
• Fixed vertical location in convert_vertical_obs to use zGridFace. #524

POP initial ensemble available from GDEX

Documentation update:

• POP initial ensemble available from Geoscience Data Exchange (GDEX) #476

Bug-fixes:

• Removed unnecessary loops around calendar types in time_manager_mod. #653
• Removed unused routine from normal_distribution_mod which caused compilation warnings. #736
• Replaced broadcast_minmax calls with all_reduce_min_max. #762

MPI window memory reduction

• Removes unnecessary copy of state into MPI window.
• Removes cray pointer version of the MI window.

We do not expect this internal change to the MPI window to affect users, however if this change causes problems with particular MPI libraries or you are making use of the cray-pointer window, please reach out to [email protected]

• Fortran-testanything included in developer tests.
  From dennisdjensen: see developer_tests/contrib/fortran-testanything/LICENSE.txt

Bug-fixes: WRF and GOES

• It is now mandatory to use THM as the Temperature variable (type_t) in the WRF model_nml #728
• Removed the offset in the GOES observation converter #731
  Please be aware that when using RTTOV with DART you should confirm that the channels listed in the coefficient file match the channel in the obs_seq.out
  For more detail refer to the obs_def_rttov documentation