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Hyperspectral vs Multispectral
The MapScaping Podcast - GIS, Geospatial, Remote Sensing, earth observation and digital geography
Open Data for Earth Observation Scientists
There is quite a bit of archival hyperspectral data available. NASA had a sensor called Hyperion that they launched in 2000, and I think it got decommissioned in 2017. There's probably more airborne hyperspectral images that people can find that are open or that you can buy. So it's definitely out there in the world. It's less common to find than multispectral certainly.
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