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学科主题: Environmental Sciences; Marine & Freshwater Biology
题名: Remotely sensed assessment of water quality levels in the Pearl River Estuary, China
作者: Chen, CQ ; Tang, SL ; Pan, ZL ; Zhan, HG ; Larson, M ; Jonsson, L
通讯作者: cqchen@scsio.ac.cn
关键词: remote sensing ; assessment ; water quality level ; pearl river estuary
刊名: MARINE POLLUTION BULLETIN
发表日期: 2007
卷: 54, 期:8, 页:1267-1272
收录类别: sci
部门归属: Chinese Acad Sci, S China Sea Inst Oceanol, Key Lab trop Marine Environm Dynam, Guangzhou 510300, Peoples R China; Lund Univ, Dept Water Resources Engn, Lund, Sweden
项目归属: LED
摘要: In this paper, a method of assessing water quality from satellite data is introduced. The composite pollution index (CPI) was calculated from measured chemical oxygen demand (COD) and nutrient concentration. The relationships between CPI and 240 band combinations of SeaWiFS water-leaving radiance were analyzed and the optimal band combination for estimating CPI was chosen from the 240 band combinations. An algorithm for retrieval of CPI was developed using the optimal band combination, (L-443 x L-510)/ (L-412 + L-490). The CPI was estimated from atmospherically corrected SeaWiFS data by employing the algorithm. Furthermore, the CPI value range for each water quality level was determined based on data obtained from 850 samples taken in the Pearl River Estuary. The remotely sensed CPIs were then transferred to water quality levels and appropriate maps were derived. The remotely sensed water quality level maps displayed a similar distribution of levels based on in situ investigation issued by the State Ocean Administration, China. This study demonstrates that remote sensing can play an important role in water quality assessment. (C) 2007 Elsevier Ltd. All rights reserved.
原文出处: 查看原文
WOS记录号: WOS:000249162300031
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/5861
Appears in Collections:热带海洋环境动力实验室(LTO)_期刊论文

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Chen, CQ; Tang, SL; Pan, ZL; Zhan, HG; Larson, M; Jonsson, L.Remotely sensed assessment of water quality levels in the Pearl River Estuary, China,MARINE POLLUTION BULLETIN,2007,54(8):1267-1272
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文件名: Remotely sensed assessment of water quality levels in the Pearl River Estuary, China.pdf
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