Brett Raczka

To also add more context -- missing layers in CLM extend beyond just snow layers (above surface ice layers), but also to the subsurface layers. Many of the subsurface layers...

Just add this quick fix in with next CLM SourceMods update

I know the documentation needs to be updated, but I am confused by the [obs_kind_mod](https://docs.dart.ucar.edu/en/latest/assimilation_code/modules/observations/obs_kind_mod.html#namelist) documentation for precomputed forward operators. Nowhere does it say the observations that use precomputed forward...

I have a separate 'conceptual or theoretical' question about using external forward operators for a 'mixed' setup where a subset of observations uses external operators and the rest use internal...

@jlaucar That clears up my confusion -- thanks. The step where the ensemble is passed out of DART, then the forward operators are externally calculated, but still using the same...

A little bit dated now, but still relevant for land DA, Brett CGD seminar: https://www.youtube.com/watch?v=9oHPdsXK6Ks

Shout out to @XueliHuo for identifying this issue.

Yes -- I think you're understanding is correct, although I don't see where in the documentation a description of how the obs_impact tool is intended to interact with inflation. For...

OK -- so my interpretation is the obs_impact tool is completely unrelated to the application of inflation, it simply turns off the adaptive nature of the inflation update (Bayesian, recursive...

Another question -- in cases of spatial localization, where the state variable increments are downscaled based on the Gaspari-Cohn radius, how does inflation interact with the application of spatial localization?...