longitude wrap satellite level 3 pairing

[mbruckner-work]

Add periodic=True for regridding model data to level 3 satellite data to allow regrid function to handle longitude wrap.

This is a temporary work around as it assumes the model is a global model. To properly allow for flexible comparison of satellite level 3 products and any model domain (regional or global), need a function to subset satellite observations to the model domain and/or associate a model domain type flag with the model object.

[blychs]

If I'm not wrong, reading the docs, it shouldn't do anything if the model isn't global, should it?
In that case, it wouldn't be detrimental, and I can't find any disadvantage to your approach.

Otherwise, a different workaround would be defining a function which, just in pseudocode, does the check :

#PSEUDOCODE, not working
def isglobal(modobj: xr.Dataset) -> Boolean:
     return test_isglobal
grid_adjust = xe.Regridder(model_obstime[['latitude','longitude']],obs_data[['lat','lon']],'bilinear',periodic=test_isglobal)

[blychs]

Everything looks right to me.
According to the docs, I don't think that the periodic=True parameter should be a problem, but we might still need to test it.

[blychs]

If this gets merged, we could add an issue to add it to the YAML file.