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SpatioTemporal / STAREPandas

STAREpandas adds SpatioTemporal Adaptive Resolution Encoding (STARE) support to pandas DataFrames. https://starepandas.readthedocs.io/en/latest/
MIT License
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Example: ellipses.ipynb #138

Closed michaelleerilee closed 10 months ago

michaelleerilee commented 1 year ago

This seems like magic. Where are the semi-major and minor axis parameters? Or are these IFOV footprints from MODIS?

NiklasPhabian commented 1 year ago

You are referring to

the notebook needs more documentation so I will leave this ticket open until I edit the notebook accordingly

Those are approximations for the MODIS IFOVs. The length of the semi-major axis and semi-minor axis are calculated from the scan angle; their orientation from their azimuth. The lengths are fitted to parameters in the MODIS geolocation ATBD:

https://github.com/NiklasPhabian/dissertation/blob/main/mds/C3_Spires.md#ifov-approximation-labelsec_ifov

NiklasPhabian commented 1 year ago

https://github.com/SpatioTemporal/STAREPandas/blob/master/starepandas/io/granules/modis.py#L456