Temporal and Spatial Analysis of COD Concentration in East Dongting Lake by Using of Remotely Sensed Data

被引：18

作者：

Yang, Bo ^{[1
]}

Liu, Yupeng ^{[1
]}

Ou, Fuping ^{[2
]}

Yuan, Minghuan ^{[1
]}

机构：

[1] Hunan Normal Univ, Coll Resources & Environm Sci, Changsha 410081, Hunan, Peoples R China

[2] Dongting Lake Ecol Environm Monitoring Ctr, Yueyang 414000, Hunan, Peoples R China

来源：

2011 3RD INTERNATIONAL CONFERENCE ON ENVIRONMENTAL SCIENCE AND INFORMATION APPLICATION TECHNOLOGY ESIAT 2011, VOL 10, PT C | 2011年 / 10卷

关键词：

Remote Sensing; Landsat TM; COD; East Dongting Lake; WATER-QUALITY; ALGORITHMS;

D O I：

10.1016/j.proenv.2011.09.420

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Chemical Oxygen Demand (COD) concentrations in East Dongting Lake (East DTL) were retrieved from multi-temporal TM images. Retrieval results showed that the East DTL was in case II waters in the past several years. Furthermore, COD concentration near the coast is higher than in deep waterway, for the water flows much more rapidly in deep waterway than near the coast. The annual changes of the COD concentration in East DTL increased significantly from 1993 to 1999, but the change from 1999 to 2006 in extremely dry seasons is very small. The retrieval results from remote sensing data compared with in-situ data showed that the empirical and semi-empirical models have high precision in retrieving water quality parameters of a certain range. (C) 2011 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of Conference ESIAT2011 Organization Committee.

引用

页码：2703 / 2708

页数：6

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