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Proceedings Paper

On-orbit absolute blackbody emissivity determination using the heated halo method
Author(s): P. Jonathan Gero; Joseph K. Taylor; Fred A. Best; Henry E. Revercomb; Robert O. Knuteson; David C. Tobin; Douglas P. Adler; Nick N. Ciganovich; Steven Dutcher; Raymond K. Garcia
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Paper Abstract

The Climate Absolute Radiance and Refractivity Observatory is a satellite mission that will measure the Earth's outgoing spectral radiance with accuracy better than 0.1 K in radiance temperature for climate benchmarking and forecast testing. Part of the high-accuracy calibration system is the heated halo, which provides a robust and compact method to measure the spectral emissivity of a blackbody. Measurement of the combined radiance of a blackbody, the reflection from a thermal source, and knowledge of key temperatures and the viewing geometry allow the blackbody spectral emissivity to be calculated. This allows the determination of blackbody radiance, and thus calibration of the CLARREO instrument, with high accuracy.

Paper Details

Date Published: 13 November 2010
PDF: 10 pages
Proc. SPIE 7857, Multispectral, Hyperspectral, and Ultraspectral Remote Sensing Technology, Techniques, and Applications III, 78570L (13 November 2010); doi: 10.1117/12.869460
Show Author Affiliations
P. Jonathan Gero, Univ. of Wisconsin-Madison (United States)
Joseph K. Taylor, Univ. of Wisconsin-Madison (United States)
Fred A. Best, Univ. of Wisconsin-Madison (United States)
Henry E. Revercomb, Univ. of Wisconsin-Madison (United States)
Robert O. Knuteson, Univ. of Wisconsin-Madison (United States)
David C. Tobin, Univ. of Wisconsin-Madison (United States)
Douglas P. Adler, Univ. of Wisconsin-Madison (United States)
Nick N. Ciganovich, Univ. of Wisconsin-Madison (United States)
Steven Dutcher, Univ. of Wisconsin-Madison (United States)
Raymond K. Garcia, Univ. of Wisconsin-Madison (United States)


Published in SPIE Proceedings Vol. 7857:
Multispectral, Hyperspectral, and Ultraspectral Remote Sensing Technology, Techniques, and Applications III
Allen M. Larar; Hyo-Sang Chung; Makoto Suzuki, Editor(s)

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