NDLI: Mapping of chlorophyll-a concentration of reservoir Dajingshan, Zhuhai, China, from LandSat thematic mapper

Content Provider	IEEE Xplore Digital Library
Author	Yujiu Xiong Xiaohong Chen GuoYu Qiu Shenglin Tan
Copyright Year	2011
Description	Author affiliation: Department of Water Resources and Environment, Geography and Planning School of Sun Yat-Sen University, Guangzhou, Guangdong, 510275, China (Yujiu Xiong; Xiaohong Chen; Shenglin Tan) \|\| Key Laboratory for Urban Habitat Environmental Science and Technology, School of Environment and Energy, Peking University Shenzhen Graduate School, 518055, China (GuoYu Qiu)
Abstract	Chlorophyll a (Chl-a) is an indicator of water quality, especially of eutrophic state. Remote sensing has been used to mapping Chl-a in lake, large river, estuary and ocean, due to its advantages such as to provide data logistically and economically. The aim of this paper was to use LandSat TM image and suitable algorithm to estimate and map Chl-a concentration in reservoir Dajingshan, an important source for drinking water supply in Zhuhai city, China. After comparing several simple linear regression algorithms, a most suitable algorithm using brightness value of bands 1 to 4, was adopted. The results showed that the modeled chl-a concentration in November $23^{th},$ 2005 had reasonable accuracy, with a mean absolute error of 0.002 mg/L when compared with the ground truth measurements. The chl-a concetration map showed that the reservior Dajingshan was in eutrophic conditions and the water could not be used as drinking water.
Starting Page	3366
Ending Page	3369
File Size	289429
Page Count	4
File Format	PDF
ISBN	9781457710032
ISSN	21537003
e-ISBN	9781457710056
DOI	10.1109/IGARSS.2011.6049940
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-07-24
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Remote sensing Satellites Lakes Earth Reservoirs Monitoring eutrophication Chlorophyll a remote sensing TM
Content Type	Text
Resource Type	Article

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