Cryo 84: Refactor tutorials to use earthaccess and xarray

[andypbarrett]

This PR updates the SMAP tutorials to use earthaccess and xarray

Methods are included to load SMAP L3 data into xarray.DataTree and add coordinates.

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👈 Launch a binder notebook on this branch for commit 1715ba0

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flamingbear commented on 2025-01-07T16:28:07Z
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xarray names dimensions phony_dim0, phony_dim1, etc.

I actually think this is HDF5 and not xarray.

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flamingbear commented on 2025-01-07T16:28:08Z
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Line #1.    dt = xr.open_datatree(filelist[0], phony_dims='sort')

In my notebook I don't need phony_dims keyword, but I might have a different env, and not using h5netcdf. I hope that doesn't really change how the datatrees behave.

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flamingbear commented on 2025-01-07T16:28:08Z
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I think here you can just access the dataset object and skip the update. see below

dt["Soil_Moisture_Retrieval_Data_AM"].ds = \
  dt["Soil_Moisture_Retrieval_Data_AM"].ds.rename(
      {
          'phony_dim_0': 'y', 
          'phony_dim_1': 'x', 
          'phony_dim_2': 'igbp_class'
      }

 

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flamingbear commented on 2025-01-07T16:28:09Z
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Of course I just said that you didn't need to do update but I don't actually see the Dimensions in the root doing it my way. And I just verified that behavior. It's probably a bug. So if you want the dims recognized I think you'll have to use the update function.

[flamingbear]

@andypbarrett Unfortunately I think you are doing it properly for the moment, but this looks like the right direction. If I get a chance I'll see if I can create a stripped down example and file a bug on the repo.

[flamingbear]

Oh. One last thing. I noticed the versions for smap in the download data notebooks were 008 and I couldn't get any data without bumping them to 009.