Brett Raczka

Balance checks not turned on for CLM-DART simulations

4

### Brief summary of bug When running CLM-DART (multi-instance run w/ ``DATA_ASSIMILATION_LND=TRUE``) the ``DA_nstep`` variable within [BalanceCheckMod.F90](https://github.com/ESCOMP/CTSM/blob/10a2345967c78e527323f26421a44a75b6eb63ca/src/biogeophys/BalanceCheckMod.F90#L613) and [CNVegetationFacade.F90](https://github.com/ESCOMP/CTSM/blob/10a2345967c78e527323f26421a44a75b6eb63ca/src/biogeochem/CNVegetationFacade.F90#L1210) does not appear to get updated. This prevents the carbon, nitrogen,...

Update WRF-DART interface to support WRF4

8

## Description: Make WRF-DART scripting compatible with WRF4 as outlined in Issue #661. Also provides updates to documentation in WRF tutorial and main model page, advising of this change, and...

Implementing CLM-DART within CESM2.3

10

### Use case Successfully run CLM compsets within DART using CESM2.3. Currently CLM-DART is vetted using release-cesm2.2.0, but the goal here is to anticipate software changes required for cesm2.3 tags....

Enforce CLM balance checks w/ DART

5

## Description: The CLM Sourcecode (ctsm_cesm2.2.03 run on Derecho), nor the current CLM-DART SourceMods allow for the CLM balance checks to be turned on *after* the DA time step. Balance...

bug: CLM water/snow/radiation/energy balance checks turned off when DA turned on

3

:bug: ### Describe the bug 1. List the steps someone needs to take to reproduce the bug. Run CLM-DART with version cesm2.2.0 versions or later. For example, run CLM-DART tutorial....

### Describe the bug 1. List the steps someone needs to take to reproduce the bug. Perform the WRF-DART Tutorial. Within the [optional section](https://docs.dart.ucar.edu/en/latest/models/wrf/tutorial/README.html#generating-the-obs-epoch-nc-file) execute `./obs_seq_to_netcdf`. 2. What was the...

CLM SIF forward operator can lead to NaN values during assimilation testing

2

### Describe the bug 1. List the steps someone needs to take to reproduce the bug. Western US test case based on Raczka et al., 2021, can lead to SIF...

### Describe the bug Perform WRF-DART Tutorial per [documentation ](https://docs.dart.ucar.edu/en/latest/models/wrf/tutorial/README.html). The tutorial will complete successfully. No fatal errors, and almost all diagnostics are produced correctly with this exception. What was...

### Describe the bug 1. List the steps someone needs to take to reproduce the bug. When executing `filter_restart` within an CLM-DART assimilation a user can get a `start+count exceeds...

Snow fraction obs converter documentation

2

The snow fraction obs converter [documentation is incomplete](https://docs.dart.ucar.edu/en/latest/observations/obs_converters/snow/snow_to_obs.html). This applies for both `snow_to_obs.f90` (text file) and `snow_to_obs_netcdf.f90` (netcdf file). Although it appears both converters are meant to operate on the...