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 | |
刊名 | MARINE POLLUTION BULLETIN
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2007 | |
卷号 | 54期号:8页码:1267-1272 |
关键词 | remote sensing assessment water quality level pearl river estuary |
ISSN号 | 0025-326X |
通讯作者 | cqchen@scsio.ac.cn |
中文摘要 | 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. |
学科主题 | Environmental Sciences; Marine & Freshwater Biology |
收录类别 | SCI |
原文出处 | PERGAMON-ELSEVIER SCIENCE LTD |
WOS记录号 | WOS:000249162300031 |
公开日期 | 2011-07-03 |
内容类型 | 期刊论文 |
源URL | [http://ir.scsio.ac.cn/handle/344004/5861] ![]() |
专题 | 南海海洋研究所_热带海洋环境国家重点实验室(LTO) |
推荐引用方式 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,&Jonsson, L.(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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