ADEOS-II/GLI ocean-color atmospheric correction: early phase result

Hajime Fukushima; Mitsuhiro Toratani; Akihiko Tanaka; Wen-Zhong Chen; Hiroshi Murakami; Robert J. Frouin; B. Greg Mitchell; Mati Kahru

doi:10.1117/12.509828

5 November 2003 ADEOS-II/GLI ocean-color atmospheric correction: early phase result

Hajime Fukushima, Mitsuhiro Toratani, Akihiko Tanaka, Wen-Zhong Chen, Hiroshi Murakami, Robert J. Frouin, B. Greg Mitchell, Mati Kahru

Author Affiliations +

Proceedings Volume 5155, Ocean Remote Sensing and Imaging II; (2003) https://doi.org/10.1117/12.509828
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

The paper presents initial results of atmospherically corrected ocean color data from the Global Imager (GLI), a moderate resolution spectrometer launched in December 2002 aboard ADEOS-II satellite. The standard GLI atmospheric correction algorithm, which includes an iterative procedure based on in-water optical modeling is first described, followed by brief description of standard in-water algorithms for output geophysical parameters. Ship/buoy-observed and satellite-derived marine reflectances, or normalized water-leaving radiance, are then compared, under vicarious calibration correction factors based on global GLI-SeaWiFS data comparison. The results, over 15 water-leaving radiance match-up data collected mostly off California and off Baja California, show standard errors in GLI estimate of 0.1 to 0.36 μW/cm²/nm/sr for 412, 443, 490, and 565 nm bands, with improved standard errors of 0.09 to 0.14 μW/cm²/nm/sr if in situ data set is limited to those obtained by in-water radiance measurement. Under provisional de-striping procedure, satellite-derived chlorophyll a estimates compares well with 35 ship-measured data collected off California within one day difference from the satellite observation, showing standard error factor of 1.73 (+73% or -43% error).

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Hajime Fukushima, Mitsuhiro Toratani, Akihiko Tanaka, Wen-Zhong Chen, Hiroshi Murakami, Robert J. Frouin, B. Greg Mitchell, and Mati Kahru "ADEOS-II/GLI ocean-color atmospheric correction: early phase result", Proc. SPIE 5155, Ocean Remote Sensing and Imaging II, (5 November 2003); https://doi.org/10.1117/12.509828

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