Putting all CERES instruments (Terra/Aqua) on the same radiometric scale

Z. Peter Szewczyk; Kory J. Priestley; Dale R. Walikainen; Norman G. Loeb; G. Louis Smith

doi:10.1117/12.896897

26 October 2011 Putting all CERES instruments (Terra/Aqua) on the same radiometric scale

Z. Peter Szewczyk, Kory J. Priestley, Dale R. Walikainen, Norman G. Loeb, G. Louis Smith

Proceedings Volume 8177, Remote Sensing of Clouds and the Atmosphere XVI; 817704 (2011) https://doi.org/10.1117/12.896897
Event: SPIE Remote Sensing, 2011, Prague, Czech Republic

Abstract

Clouds and the Earth's Radiant Energy System (CERES) instruments are scanning radiometers on board the Terra and Aqua satellites since March of 2000 and June of 2002, respectively; hence, their continuous Earth's radiation budget dataset is more than a decade long. Since there are four CERES scanners in operation, it is important that their measurements are consistent. A focus of this paper is on placing two Aqua CERES sensors on the same radiometric scale as FM1 on Terra. The paper contains a description of radiation budget experiments that are used in this task, and a complete set of results. It is shown that one-time adjustments to gains and spectral response functions are sufficient in putting FM3 and FM4 on the same radiometric scale as FM1 at the beginning of their mission. The Edition 3 of ERBE-like data products use derived corrections for Aqua CERES sensors.

Citation Download Citation

Z. Peter Szewczyk, Kory J. Priestley, Dale R. Walikainen, Norman G. Loeb, and G. Louis Smith "Putting all CERES instruments (Terra/Aqua) on the same radiometric scale", Proc. SPIE 8177, Remote Sensing of Clouds and the Atmosphere XVI, 817704 (26 October 2011); https://doi.org/10.1117/12.896897

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