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Proceedings Paper

Post-launch calibration of GOES Imager visible channel using MODIS data
Author(s): Xiangqian Wu; Fengying Sun
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Paper Abstract

Lacking onboard calibration devices, the GOES Imager visible channel must be vicariously calibrated on orbit. Several methods have been explored. In this study, the method using a well-calibrated radiometer (MODIS) as an external reference for calibration was expanded and improved. This method is complementary to other techniques in that, in addition to long term trending, it also provides absolute calibration shortly after launch. Care must be taken, though, to account for the lack of simultaneity of the measurements by the two sensors and the differences in the sensors' spectral response functions.

Paper Details

Date Published: 22 August 2005
PDF: 11 pages
Proc. SPIE 5882, Earth Observing Systems X, 58820N (22 August 2005); doi: 10.1117/12.615401
Show Author Affiliations
Xiangqian Wu, NOAA/NESDIS/ORA (United States)
Fengying Sun, QSS Group, Inc. (United States)


Published in SPIE Proceedings Vol. 5882:
Earth Observing Systems X
James J. Butler, Editor(s)

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