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New test file for Thinning filter using MPI global location indices - #599

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feature/no-obs-file-dep
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srherbener wants to merge 2 commits into
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feature/no-obs-file-dep

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@srherbener srherbener commented Sep 23, 2026 •

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Description

This PR provides a test file for a Thinning filter ctest that checks for proper operation when some of the obs are outside the DA time window.

Issue(s) addressed

Towards jcsda-internal/ufo/issues/4362

Dependencies

List the other PRs that this PR is dependent on:

  • merge before or with jcsda-internal/ufo/pull/4381

Impact

Expected impact on downstream repositories:
In the case of no obs being filtered out during ObsSpace construction, there should be no impact downstream. However, when obs are filtered out there is an expected small impact on the number of obs that are retained during the Thinning filter operation.

Manual Testing Instructions (optional)

If you would like your reviewers to manually build and test the change, please include
instructions on how the change should be built and tested. Also include a short
justification on why manual testing is necessary for this change.

Checklist

  • I have performed a self-review of my own code
    -~~ [ ] I have made corresponding changes to the documentation~~
  • I have run the unit tests before creating the PR

@srherbener
srherbener marked this pull request as ready for review September 24, 2026 21:48
@srherbener
srherbener marked this pull request as draft September 25, 2026 17:50
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