Fix intake-esgf CMIP7 support

[bouweandela]

Description

Some changes are needed to make accessing CMIP7 data with intake-esgf possible. The lowest version of intake-esgf that supports CMIP7 is v2026.9.4. Run esmvaltool config copy data-intake-esgf.yml to install the configuration file. Ensure that at least one of the new STAC indices are enabled, i.e. the file ~/.config/intake-esgf/conf.yaml contains the lines:

stac_indices:
  discovery.east.esgf.io: true
  discovery.west.esgf.io: true

Example recipe for testing this pull request:

# ESMValTool
# recipe_python.yml
#
# See https://docs.esmvaltool.org/en/latest/recipes/recipe_examples.html
# for a description of this recipe.
#
# See https://docs.esmvaltool.org/projects/esmvalcore/en/latest/recipe/overview.html
# for a description of the recipe format.
---
documentation:
  description: |
    Example recipe that plots a map and timeseries of temperature.

  title: Recipe that runs an example diagnostic written in Python.

  authors:
    - andela_bouwe
    - righi_mattia

  maintainer:
    - schlund_manuel

  references:
    - acknow_project

  projects:
    - esmval
    - c3s-magic

datasets:
  - {dataset: UKCM2a-0-HH, project: CMIP7, mip: atmos, exp: historical, ensemble: r1i1p1f1, grid: g137}
  - {dataset: UKCM2-0-LL, project: CMIP7, mip: atmos, exp: historical, ensemble: r1i1p1f1, grid: g110}
  - {dataset: CanESM6-0-MR, project: CMIP7, mip: atmos, exp: historical, ensemble: r1i1p1f1, grid: g150}

preprocessors:
  # See https://docs.esmvaltool.org/projects/esmvalcore/en/latest/recipe/preprocessor.html
  # for a description of the preprocessor functions.

  to_degrees_c:
    convert_units:
      units: degrees_C

diagnostics:

  map:
    description: Global map of temperature in January 2000.
    themes:
      - phys
    realms:
      - atmos
    variables:
      tas:
        branding_suffix: tavg-h2m-hxy-u
        frequency: mon
        region: glb
        preprocessor: to_degrees_c
        timerange: 2000/P1M
        caption: |
          Global map of {long_name} in January 2000 according to {dataset}.
    scripts:
      script1:
        script: examples/diagnostic.py
        quickplot:
          plot_type: pcolormesh
          cmap: Reds

Closes #issue_number

Link to documentation:

---

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.47%. Comparing base (19eb140) to head (5f70fbb).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3221      +/-   ##
==========================================
- Coverage   96.50%   96.47%   -0.03%     
==========================================
  Files         282      282              
  Lines       16416    16418       +2     
==========================================
- Hits        15842    15840       -2     
- Misses        574      578       +4     

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[katjaweigel]

Thanks a lot @bouweandela ! works for me 🎉

[valeriupredoi]

looks spiffy, and thanks to @katjaweigel we knoe it also works, cheers @bouweandela 🍻 Do you also want to pop a minimal test case in tests? If there 'snt one yet

[bouweandela]

Thanks for testing and reviewing! There is a test here: https://github.com/ESMValGroup/ESMValCore/pull/3221/changes#diff-b08b62643b473104ca4980f5735d47183806232747f18ed8fc56c9bb11639ccd, what other testing would you suggest?

[valeriupredoi]

Thanks for testing and reviewing! There is a test here: https://github.com/ESMValGroup/ESMValCore/pull/3221/changes#diff-b08b62643b473104ca4980f5735d47183806232747f18ed8fc56c9bb11639ccd, what other testing would you suggest?

I was suggesting exactly that one! For some odd reason my browser missed that file, and now I see it missed a few more. Checked them now - all good! 🍺

[valeriupredoi]

Thanks for testing and reviewing! There is a test here: https://github.com/ESMValGroup/ESMValCore/pull/3221/changes#diff-b08b62643b473104ca4980f5735d47183806232747f18ed8fc56c9bb11639ccd, what other testing would you suggest?

I was suggesting exactly that one! For some odd reason my browser missed that file, and now I see it missed a few more. Checked them now - all good! 🍺

though, now being a world champion at nitpicking, could you chose an even more obscure variable for the test, please? 🤣