AVIRIS: A New Approach to Earth Remote Sensing
An imaging spectrometer measures a contiguous spectrum of light for each spatial element of an image. From these spectra, the constituents of the Earth's surface and atmosphere are identified and measured quantitatively based on the fundamental molecular absorption features and particle scattering characteristics. Spectra measured in the range of 400 to 2500 nm contain molecular absorption features for many constituents of the Earth's surface and atmosphere. Scientific investigations are ongoing using imaging spectrometry data in the disciplines of ecology, oceanography, coastal and inland waters, geology and soils, and snow hydrology, to name a few.
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