Developing a solar channel calibration algorithm for the Korean geostationary satellite COMS

Byung-Ju Sohn; Hyoung-Wook Chun

doi:10.1117/12.733379

24 September 2007 Developing a solar channel calibration algorithm for the Korean geostationary satellite COMS

Byung-Ju Sohn, Hyoung-Wook Chun

Proceedings Volume 6684, Atmospheric and Environmental Remote Sensing Data Processing and Utilization III: Readiness for GEOSS; 668405 (2007) https://doi.org/10.1117/12.733379
Event: Optical Engineering + Applications, 2007, San Diego, California, United States

Abstract

The Korean Geostationary satellite (COMS) to fly in year 2009 will carry a meteorological sensor from which visible channel measurements will be available. We developed a method utilizing satellite-derived BRDFs for the solar channel calibration over the bright desert area. The 6S model has been incorporated to account for directional effects of the surface using MODIS-derived BRDF parameters within the spectral interval in interest. Simulated radiances over the desert targets were compared with MODIS and SeaWiFS measured spectral radiances in order to examine the feasibility of the developed calibration algorithm. It was shown that simulated 16-day averaged radiances are in good agreement with the satellite-measured radiances within about ±5% uncertainty range for the year 2005, suggesting that the developed algorithm can be used for calibrating the COMS visible channel within about 5% uncertainty level.

Citation Download Citation

Byung-Ju Sohn and Hyoung-Wook Chun "Developing a solar channel calibration algorithm for the Korean geostationary satellite COMS", Proc. SPIE 6684, Atmospheric and Environmental Remote Sensing Data Processing and Utilization III: Readiness for GEOSS, 668405 (24 September 2007); https://doi.org/10.1117/12.733379

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KEYWORDS

Bidirectional reflectance transmission function

MODIS

Calibration

Algorithm development

Satellites

Atmospheric modeling

Reflectivity

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