Combine low level moisture with a cloud mask

[gerritholl]

Combine ESSL colorized low level moisture with a cloud mask.

• Needs Re-implement essl_colorized_low_level_moisture using colorize #3020 to be merged first.

• Preferably, Clip negative FCI radiances #3013 should be merged first, because that PR includes a lot of work on the behave tests that I would like to leverage on before creating a test.

• Preferably, we should fix Cannot load ABI or FCI L1 datasets from Scene combining L1 and L2 #1913 first or a low level moisture defined by wavelength cannot be loaded when level 2 data are present.

• Closes #xxxx

• Tests added

• Fully documented

Example for eurol:

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.09%. Comparing base (5984c29) to head (b829d96).
Report is 5 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3022      +/-   ##
==========================================
- Coverage   96.10%   96.09%   -0.01%     
==========================================
  Files         377      375       -2     
  Lines       55163    55103      -60     
==========================================
- Hits        53012    52952      -60     
  Misses       2151     2151              

Flag	Coverage Δ
behaviourtests	3.93% <ø> (-0.02%)	⬇️
unittests	96.19% <ø> (-0.01%)	⬇️

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[coveralls]

Pull Request Test Coverage Report for Build 12673414590

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This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

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Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.004%) to 96.202%

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Totals
Change from base Build 12299617024:	-0.004%
Covered Lines:	53194
Relevant Lines:	55294

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💛 - Coveralls

[mraspaud]

Great idea! a couple of questions:

• what’s happening over the baltic sea?
• what’s happening above the arctic circle? looks like the colors are still there, but much darker. Is it the night side, and the sharp edge of the colorised part is the terminator?

[gerritholl]

* what’s happening over the baltic sea?

The cloud mask claims a sharp edge there between cloud-free and cloudy:

* what’s happening above the arctic circle?

The cloud mask stops.

looks like the colors are still there, but much darker. Is it the night side, and the sharp edge of the colorised part is the terminator?

Maybe a resampling artefact. Redoing the resampling with gradient search, the result looks different, but still has artefacts:

Oh, gradient search is of course not great for a cloud mask.

[gerritholl]

Resampling with nearest neighbour again, but with a larger radius of influence, the result looks better:

[gerritholl]

With the modifier effective_solar_pathlength_corrected:

Version filled with IR 105 instead (using night_ir105 even during the day):

[mraspaud]

Nice imagery! do you have the date and time for this slot?

[gerritholl]

do you have the date and time for this slot?

2024-12-17 12:10

[gerritholl]

Case from today (2025-01-80 15:30), with the night part blended out using the DayNightCompositor: