Determination of the in-flight spectral calibration of AVIRIS using atmospheric absorption features

Details Determination of the in-flight spectral calibration of AVIRIS using atmospheric absorption features Determination of the in-flight spectral calibration of AVIRIS using atmospheric absorption features

Jan 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aes.....1...71g&link_type=abstract

In its Summaries of the Fifth Annual JPL Airborne Earth Science Workshop. Volume 1: AVIRIS Workshop p 71-74 (SEE N95-33730 12-42

Physics

Airborne Equipment, Atmospheric Attenuation, Calibrating, Imaging Spectrometers, Infrared Spectrometers, Onboard Data Processing, Radiance, Absorption Spectra, Optical Thickness, Radiative Transfer, Reflectance, Water Vapor

Scientific paper

Spectral calibration of the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) as data are acquired in flight is essential to quantitative analysis of the measured upwelling spectral radiance. In each spectrum measured by AVIRIS in flight, there are numerous atmospheric gas absorption bands that drive this requirement for accurate spectral calibration. If the surface and atmospheric properties are measured independently, these atmospheric absorption bands may be used to deduce the in-flight spectral calibration of an imaging spectrometer. Both the surface and atmospheric characteristics were measured for a calibration target during an in-flight calibration experiment held at Lunar Lake, Nevada on April 5, 1994. This paper uses upwelling spectral radiance predicted for the calibration target with the MODTRAN radiative transfer code to validate the spectral calibration of AVIRIS in flight.

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