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Issues in Absolute Spectral Radiometric Calibration: Intercomparison of Eight SourcesThe application of atmospheric models to AVIRIS and other spectral imaging data to derive surface reflectance requires that the sensor output be calibrated to absolute radiance. Uncertainties in absolute calibration are to be expected, and claims of 92% accuracy have been published. Measurements of accurate surface albedos and cloud absorption to be used in radiative balance calculations depend critically on knowing the absolute spectral-radiometric response of the sensor. The Earth Observing System project is implementing a rigorous program of absolute radiometric calibration for all optical sensors. Since a number of imaging instruments that provide output in terms of absolute radiance are calibrated at different sites, it is important to determine the errors that can be expected among calibration sites. Another question exists about the errors in the absolute knowledge of the exoatmospheric spectral solar irradiance.
Document ID
20000064542
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Goetz, Alexander F. H.
(Colorado Univ. Boulder, CO United States)
Kindel, Bruce
(Colorado Univ. Boulder, CO United States)
Pilewskie, Peter
(NASA Ames Research Center Moffett Field, CA United States)
Date Acquired
August 19, 2013
Publication Date
December 19, 1998
Publication Information
Publication: Summaries of the Seventh JPL Airborne Earth Science Workshop January 12-16, 1998
Volume: 1
Subject Category
Earth Resources And Remote Sensing
Funding Number(s)
CONTRACT_GRANT: NAG5-4447
CONTRACT_GRANT: 95-B26
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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