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GETKF calculation in two steps (base, merge last)#692

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metdyn wants to merge 7 commits intodevelopfrom
feature/ygyu/pr_getkf_2steps
Open

GETKF calculation in two steps (base, merge last)#692
metdyn wants to merge 7 commits intodevelopfrom
feature/ygyu/pr_getkf_2steps

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@metdyn metdyn commented Jan 30, 2026

Description

This PR sets up a two-step calculation to compute analysis from GETKF with linear observer. The GETKF code can run on 4 Milan nodes with 32 ensemble members at C90 resolution when 30 obs files are each thinned by 75%. Aircraft_temperature and wind obs are commented out, because there are unknown jedi source code issues that goes out of the scope this PR.

  • Variational bc is used and reading JEDI source code shows why this works in two steps calculations.

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metdyn commented Feb 2, 2026

I am still working on node assignment for executable runs from this PR.

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metdyn commented Feb 9, 2026

Temporarily withhold this code change to add more improvements.

@metdyn metdyn closed this Feb 9, 2026
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metdyn commented Mar 9, 2026

I have been inspecting the input and output from the ensemble runs when this PR was initially created and closed. Now I donot see problems with this infrastructure complement. Hence I will have a few other PRs related to local ensemble DA intended to merge into this base PR.

@metdyn metdyn reopened this Mar 9, 2026
@metdyn metdyn changed the title GETKF calculation in two steps GETKF calculation in two steps (base, merge last) Mar 9, 2026
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