Query NWM Streamflow Predictions by HUC shape

[rajadain]

Overview

Adds a notebook that queries the NWM for a set of streams for a HUC.

Interestingly, the longest time taking bit of this is querying the NHD Streams from their webservice. The spatial join is pretty fast, even with using NetCDF files as the source.

This looks at a single time slice. The next step is to compose a test that queries multiple time slices.

Checklist

• [x] Ran nbautoexport export . in /opt/src/notebooks and committed the generated scripts. This is to make reviewing notebooks easier. (Note the export will happen automatically after saving notebooks from the Jupyter web app.)
• [x] Documentation updated if needed
• [x] PR has a name that won't get you publicly shamed for vagueness

[review-notebook-app[bot]]

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[elizawallace]

Superseded by PR #128.