The Portable Remote Imaging SpectroMeter (PRISM) is a compact airborne pushbroom imaging spectrometer developed by the NASA Jet Propulsion Laboratory (JPL). PRISM measures radiance from the near ultraviolet to the near infrared (350–1050 nm) at ~3.5 nm spectral resolution, with the high signal-to-noise ratio needed for coastal and inland water studies.
PRISM datasets are available at https://