search

ssec / polar2grid

Tools for reading, remapping, and writing satellite instrument data.
http://www.ssec.wisc.edu/software/polar2grid/
GNU General Public License v3.0
71 stars 33 forks source link

Add initial MERSI-LL reader #629

Closed djhoese closed 10 months ago

djhoese commented 10 months ago

This adds an initial version of the MERSI-LL reader. This instrument is different enough from MERSI-2 that it gets its own reader. Band 1, I think, is supposed to be the DNB band and that leaves bands 2-7 as IR (brightness temperature) readers. However, our "best" DNB composites "hncc_dnb" and "dynamic_dnb" require moon illumination fraction which is not available in the files unlike VIIRS SDR files. There was some experimentation in Satpy to get this information from a third-party library using lon/lat and date/time to determine what the moons illumination should be, but I'm not sure they ever got it to work.

coveralls commented 10 months ago

Coverage Status

coverage: 85.011% (+0.006%) from 85.005% when pulling e144f74ca78b5249e052418e7bbccbe86eb34010 on djhoese:feature-mersill-reader into dece4b03ff24929004d099f878120a36f1bb06ab on ssec:main.