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Proceedings Paper

Vicarious calibration for GLI ocean color channels by ground observation data
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Paper Abstract

The Global Imager (GLI) was launched on board the Advanced Earth Observing Satellite II (ADEOS-II) on December 14, 2002. We conducted vicarious calibration of the GLI ocean color channels in visible to near-infrared channels. For the calibration we used the normalized water-leaving radiance derived from the Marine Optical Buoy (MOBY), and the aerosol optical properties (aerosol optical depth, size distribution, and refractive index) released in the Aerosol Robotic Network (AERONET). The following GLI characteristics are recognized from the calibration results. First, GLI underestimates the radiance in channels 1, 2, 4, and 5. Next, in near-infrared channels, it is suggested that GLI overestimates the radiance on the order of 15% in channels 18 and 19. Furthermore, the comparison of the result with other vicarious calibration results suggests the possibility that the GLI observed radiance has offset radiance versus the simulated radiance. The estimated offset is about 0.4 W/m2/um/sr in channel 19, which is considered appropriate by the adaptation test to the GLI standard atmospheric correction algorithm.

Paper Details

Date Published: 20 January 2005
PDF: 12 pages
Proc. SPIE 5656, Active and Passive Remote Sensing of the Oceans, (20 January 2005); doi: 10.1117/12.581806
Show Author Affiliations
Mayumi Yoshida, Remote Sensing Technology Ctr. of Japan (Japan)
Hiroshi Murakami, Japan Aerospace Exploration Agency (Japan)
Yasushi Mitomi, Remote Sensing Technology Ctr. of Japan (Japan)
Dennis K. Clark, National Oceanic and Atmospheric Administration/NESDIS (United States)
Hajime Fukushima, Tokai Univ. (Japan)

Published in SPIE Proceedings Vol. 5656:
Active and Passive Remote Sensing of the Oceans
Robert J. Frouin; Hiroshi Kawamura; Delu Pan, Editor(s)

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