Comparison of unfiltered CERES radiances measured from the Aqua and  S-NPP or JPSS1 satellites over closely matched sites

Z. Peter Szewczyk; Susan Thomas; Kory J. Priestley

doi:10.1117/12.2530457

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9 October 2019 Comparison of unfiltered CERES radiances measured from the Aqua and S-NPP or JPSS1 satellites over closely matched sites

Z. Peter Szewczyk, Susan Thomas, Kory J. Priestley

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Proceedings Volume 11152, Remote Sensing of Clouds and the Atmosphere XXIV; 1115204 (2019) https://doi.org/10.1117/12.2530457
Event: SPIE Remote Sensing, 2019, Strasbourg, France

Abstract

The focus of this paper is to introduce a novel strategy for comparison of unfiltered radiances in remote sensing devised for CERES scanners. The strategy is referred to as “matched sites targeting”, in which CERES instruments scan at nadir along their respective collocated ground-tracks. This strategy is enabled by similarities in the Suomi-NPP (FM5)/JPSS1 (FM6) and Aqua (FM3) satellite orbits, and a special scan profile available for the CERES scanners. Comparison of collected data in this strategy is done at a footprint level between the instruments (FM5 and FM3 or FM6 and FM3) for specific scene types, determined by their “almost” coincidental ground-tracks. A far more stringent test of the measurement consistency is achieved as averages of 330 collocated nadir samples are compared. A comparison of comprehensive “all-sky” measurements is also included as a reference. Results of the unfiltered radiance comparison are based on ES8 or ERBE-like data product using Edition1 for FM5, Edition1-CV for FM6 and Edition4 for FM3; cloud coverage is verified using MODIS data available in SSFs product.

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Z. Peter Szewczyk, Susan Thomas, and Kory J. Priestley "Comparison of unfiltered CERES radiances measured from the Aqua and S-NPP or JPSS1 satellites over closely matched sites", Proc. SPIE 11152, Remote Sensing of Clouds and the Atmosphere XXIV, 1115204 (9 October 2019); https://doi.org/10.1117/12.2530457

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