
Proceedings Paper
Using three-band model to retrieve chlorophyll-a of Yantai coastal watersFormat | Member Price | Non-Member Price |
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Paper Abstract
It is challenging that accurate assessment of chlorophyll-a concentration by remote sensing in coastal waters. Chla
concentration is commonly retrieved by blue-green ratio in open ocean waters. And this method is efficient in open
ocean waters. But this method is confined when applied to coastal or inland waters, because of abundant variable CDOM
and tripton. It is very difficult to retrieve chla of coastal or estuary waters because of overlap of absorption and
backscattering caused by CDOM and tripton. Dall’Olmo et al put forward a semi-analytical retrieval model of chla,
three-band model. The conceptual three-band model has been successfully applied to estimate chla in turbid and
eutrophic waters by tuning the band position in accordance with the spectral properties.The aim of this paper is to testify
the three-band model that could resolve this problem. The three-band model was tuned in accord with optical properties
and the bands were optimized for accurate estimation. Finally, we found a good linear relationship between chlorophyll-a
and three-band model, with the determination coefficient of 0.63 and the RMSE of 2.22μg·L-1. Furthermore, the in situ
spectral data was averaged to the band range of MERIS (band7, band9 and band10) and developed a simulated threeband
model. A good linear relationship could be found between [(B7-1-B9-1)×B10] and chlorophyll-a, with the
determination coefficient of 0.59 and the RMSE of 0.72μg·L-1. The findings demonstrated that the three-band model of
MERIS could be applied to retrieve chlorophyll-a concentration of Yantai coastal waters.
Paper Details
Date Published: 10 December 2014
PDF: 6 pages
Proc. SPIE 9261, Ocean Remote Sensing and Monitoring from Space, 926102 (10 December 2014); doi: 10.1117/12.2068900
Published in SPIE Proceedings Vol. 9261:
Ocean Remote Sensing and Monitoring from Space
Robert J. Frouin; Delu Pan; Hiroshi Murakami, Editor(s)
PDF: 6 pages
Proc. SPIE 9261, Ocean Remote Sensing and Monitoring from Space, 926102 (10 December 2014); doi: 10.1117/12.2068900
Show Author Affiliations
Wandong Ma, Ministry of Environmental Protection (China)
Chuanqing Wu, Ministry of Environmental Protection (China)
Shoujing Yin, Ministry of Environmental Protection (China)
Chuanqing Wu, Ministry of Environmental Protection (China)
Shoujing Yin, Ministry of Environmental Protection (China)
Li Zhu, Ministry of Environmental Protection (China)
Di Wu, Ministry of Environmental Protection (China)
Qianguo Xing, Yantai Institute of Coastal Zone Research (China)
Di Wu, Ministry of Environmental Protection (China)
Qianguo Xing, Yantai Institute of Coastal Zone Research (China)
Published in SPIE Proceedings Vol. 9261:
Ocean Remote Sensing and Monitoring from Space
Robert J. Frouin; Delu Pan; Hiroshi Murakami, Editor(s)
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