Remotely sensed assessment of water quality levels in the Pearl River Estuary, China
Chen, CQ; Tang, SL; Pan, ZL; Zhan, HG; Larson, M; Jonsson, L; cqchen@scsio.ac.cn
2007
发表期刊MARINE POLLUTION BULLETIN
ISSN0025-326X
卷号54期号:8页码:1267-1272
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.
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
关键词Remote Sensing Assessment Water Quality Level Pearl River Estuary
学科领域Environmental Sciences ; Marine & Freshwater Biology
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收录类别sci
资助项目LED
WOS记录号WOS:000249162300031
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被引频次:33[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/5861
专题热带海洋环境国家重点实验室(LTO)
通讯作者cqchen@scsio.ac.cn
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GB/T 7714
Chen, CQ,Tang, SL,Pan, ZL,et al. Remotely sensed assessment of water quality levels in the Pearl River Estuary, China[J]. MARINE POLLUTION BULLETIN,2007,54(8):1267-1272.
APA Chen, CQ.,Tang, SL.,Pan, ZL.,Zhan, HG.,Larson, M.,...&cqchen@scsio.ac.cn.(2007).Remotely sensed assessment of water quality levels in the Pearl River Estuary, China.MARINE POLLUTION BULLETIN,54(8),1267-1272.
MLA Chen, CQ,et al."Remotely sensed assessment of water quality levels in the Pearl River Estuary, China".MARINE POLLUTION BULLETIN 54.8(2007):1267-1272.
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