NDLI: Chlorophyll Estimation of Lake Water and Coastal Water Using Landsat-8 and Sentinel-2A Satellite

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Chlorophyll Estimation of Lake Water and Coastal Water Using Landsat-8 and Sentinel-2A Satellite

Content Provider	Semantic Scholar
Author	Yadav, Shweta Yamashiki, Yosuke Susaki, Junichi Yamashita, Youhei Ishikawa, Kanako
Copyright Year	2019
Abstract	Abstract. Chlorophyll-a is an optically active compound (OAC) commonly used as a proxy for phytoplankton biomass in an aquatic environment. Retrieving the concentration of chlorophyll-a remains a challenge due to the presence of several OAC particularly in water bodies which are in proximity to the land-based activities. In this study, an effort has been made to estimate the chlorophyll-a concentration of both the freshwater Lake Biwa and the coastal water of Wakasa Bay in Japan. A spectral decomposition algorithm was used to determine the chlorophyll-a using the satellite images. The algorithm was applied to the satellite images from two different sensors namely Landsat-8/OLI and Sentinel-2A/MSI. The satellite-derived chlorophyll-a concentration for the lake and coastal water from two different sensors were compared to assess the performance of both the sensors. The accuracy of the chlorophyll-a results derived from the images was evaluated with the in-situ measurement data of the chlorophyll-a for the Lake Biwa and the coastal water of Wakasa Bay. Both satellite sensors appear to give the best results for the coastal water (R2 > 0.80) with an RMSE 0.70) than Landsat-8, with an RMSE of
Starting Page	77
Ending Page	82
Page Count	6
File Format	PDF HTM / HTML
DOI	10.5194/isprs-archives-XLII-3-W7-77-2019
Alternate Webpage(s)	https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-3-W7/77/2019/isprs-archives-XLII-3-W7-77-2019.pdf
Alternate Webpage(s)	https://doi.org/10.5194/isprs-archives-XLII-3-W7-77-2019
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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