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In-flight radiometric calibration of AVIRIS in 1994The AVIRIS sensor must be calibrated at the time it measures spectra from the ER-2 airborne platform in order to achieve research and application objectives that are both quantitative and physically based. However, the operational environment inside the Q-bay of the ER-2 at 20 km altitude differs from that in the AVIRIS laboratory with respect to temperature, pressure, vibration, and high-frequency electromagnetic fields. Experiments at surface calibration targets are used in each flight season to confirm the accuracy of AVIRIS in-flight radiometric calibrations. For these experiments, the MODTRAN radiative transfer code is constrained by using in situ measurements to independently predict the upwelling spectral radiance arriving at AVIRIS for a specific calibration target. AVIRIS calibration is validated in flight by comparing the MODTRAN-predicted radiance to the laboratory-calibrated radiance measured by the AVIRIS sensor for the same time over the calibration target. We present radiometric calibration results for the AVIRIS in-flight calibration experiment held at the beginning of the 1994 flight season.
Document ID
19950027333
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Green, Robert O. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Conel, James E. (California Univ. Santa Barbara, CA., United States)
Helmlinger, Mark (California Univ. Santa Barbara, CA., United States)
Vandenbosch, Jeannette (California Univ. Santa Barbara, CA., United States)
Hajek, Pavel (California Univ. Santa Barbara, CA., United States)
Date Acquired
September 6, 2013
Publication Date
January 23, 1995
Publication Information
Publication: Summaries of the Fifth Annual JPL Airborne Earth Science Workshop. Volume 1: AVIRIS Workshop
Subject Category
Instrumentation And Photography
Accession Number
95N33754
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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