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Proceedings Paper

Solar radiation based calibration of a short-wave ir radiometer and a comparison of exoatmospheric solar spectral irradiance data sets
Author(s): Edward Zalewski; Christopher Cattrall
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Paper Abstract

We have performed an absolute calibration comparison between the Sun and a NIST-calibrated spectral irradiance standard lamp. The comparison at seven bands ranging from 1.2 to 2.3 μm was made using a highly stable Short Wave IR Transfer Radiometer. The experiment consisted of laboratory and outdoor measurements of an irradiated diffusely reflecting panel. Outdoors, simultaneous atmospheric transmittance measurements were also obtained in order to correct for atmospheric effects. The results were used to compare three absolute exo-atmospheric solar spectral irradiance data sets currently used in various remote sensing applications to a NIST traceable radiometric calibration. The comparison with the limited set of recently produced SORCE-SIM data showed almost no differences at 1.2 and 1.6 μm; however, the comparison with three other data sets showed larger differences.

Paper Details

Date Published: 22 August 2005
PDF: 12 pages
Proc. SPIE 5882, Earth Observing Systems X, 588204 (22 August 2005); doi: 10.1117/12.619699
Show Author Affiliations
Edward Zalewski, College of Optical Sciences/The Univ. of Arizona (United States)
Christopher Cattrall, College of Optical Sciences/The Univ. of Arizona (United States)

Published in SPIE Proceedings Vol. 5882:
Earth Observing Systems X
James J. Butler, Editor(s)

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