9 November 2012 The heated halo for space-based blackbody emissivity measurement
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Abstract
Reliable calibration of high-accuracy spaceborne infrared spectrometers requires knowledge of both blackbody temperature and emissivity on-orbit, as well as their uncertainties. The Heated Halo is a broadband thermal source that provides a robust and compact method to measure emissivity. We present the results from the Heated Halo methodology implemented with a new Absolute Radiance Interferometer (ARI), which is a prototype space-based infrared spectrometer designed for climate benchmarking. We show the evolution of the technical readiness level of this technology and we compare our findings to models and other experimental methods of emissivity determination.
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P. Jonathan Gero, P. Jonathan Gero, Joseph K. Taylor, Joseph K. Taylor, Fred A. Best, Fred A. Best, Henry E. Revercomb, Henry E. Revercomb, Raymond K. Garcia, Raymond K. Garcia, Robert O. Knuteson, Robert O. Knuteson, David C. Tobin, David C. Tobin, Douglas P. Adler, Douglas P. Adler, Nick N. Ciganovich, Nick N. Ciganovich, } "The heated halo for space-based blackbody emissivity measurement", Proc. SPIE 8527, Multispectral, Hyperspectral, and Ultraspectral Remote Sensing Technology, Techniques and Applications IV, 85270O (9 November 2012); doi: 10.1117/12.977548; https://doi.org/10.1117/12.977548
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