Make the diurnal cycle evaluation working again

[jgriesfeller]

This PR will make the diurnal cycle analysis work again. WIP at the moment

[codecov]

Codecov Report

Patch coverage: 26.00% and project coverage change: +78.31 🎉

Comparison is base (f0a33c5) 0.00% compared to head (5c71176) 78.31%.

Additional details and impacted files

@@              Coverage Diff              @@
##           main-dev     #859       +/-   ##
=============================================
+ Coverage      0.00%   78.31%   +78.31%     
=============================================
  Files           102      106        +4     
  Lines         17597    18092      +495     
=============================================
+ Hits              0    14168    +14168     
+ Misses        17597     3924    -13673     

Flag	Coverage Δ
unittests	78.31% <26.00%> (+78.31%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
pyaerocom/_concprcp_units_helpers.py	100.00% <ø> (+100.00%)	⬆️
pyaerocom/aeroval/helpers.py	89.41% <ø> (+89.41%)	⬆️
pyaerocom/aeroval/modelmaps_engine.py	77.65% <ø> (+77.65%)	⬆️
pyaerocom/aeroval/modelmaps_helpers.py	85.33% <ø> (+85.33%)	⬆️
pyaerocom/aeroval/superobs_engine.py	85.71% <ø> (+85.71%)	⬆️
pyaerocom/combine_vardata_ungridded.py	82.16% <ø> (+82.16%)	⬆️
pyaerocom/griddeddata.py	71.76% <0.00%> (+71.76%)	⬆️
pyaerocom/helpers.py	77.67% <ø> (+77.67%)	⬆️
pyaerocom/io/aerocom_browser.py	78.16% <ø> (+78.16%)	⬆️
pyaerocom/io/cachehandler_ungridded.py	78.52% <ø> (+78.52%)	⬆️
... and 40 more

... and 56 files with indirect coverage changes

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[jgriesfeller]

closing pull request since it has been solved at the aeroval / Java Script level by @AugustinMortier