processing-chain ยท standards
piSOFIT
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Atmospheric correction processing chain used by Pixxel for Firefly hyperspectral imagery. Pixxel implementation of the NASA JPL ISOFIT optimal-estimation framework, with a neural-network MODTRAN radiative-transfer emulator, superpixel aerosol and water-vapour retrieval, and per-pixel Bayesian uncertainty propagation. Produces Level-2A surface reflectance with uncertainty layers from upstream Level-1 radiance.