A new three-band algorithm for estimating chlorophyll concentrations in turbid inland lakes

被引：48

作者：

Duan, Hongtao ^{[1
]}

Ma, Ronghua ^{[1
]}

Zhang, Yuanzhi ^{[2
]}

Loiselle, Steven Arthur ^{[3
]}

Xu, Jingping ^{[4
]}

Zhao, Chenlu ^{[1
]}

Zhou, Lin ^{[1
]}

Shang, Linlin ^{[1
]}

机构：

[1] Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing, Peoples R China

[2] Chinese Univ Hong Kong, Inst Space & Earth Informat Sci, Hong Kong, Hong Kong, Peoples R China

[3] Univ Siena, CSGI, Dipartimento Farmaco Chim Tecnol, I-53100 Siena, Italy

[4] Chinese Acad Sci, Beijing Normal Univ, Inst Remote Sensing Applicat, State Key Lab Remote Sensing Sci, Beijing, Peoples R China

来源：

ENVIRONMENTAL RESEARCH LETTERS | 2010年 / 5卷 / 04期

基金：

中国国家自然科学基金;

关键词：

water color remote sensing; bio-optical model; absorption coefficient; inherent optical properties; REMOTE; BLOOMS; WATERS; MODEL;

D O I：

10.1088/1748-9326/5/4/044009

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A new three-band model was developed to estimate chlorophyll-a concentrations in turbid inland waters. This model makes a number of important improvements with respect to the three-band model commonly used, including lower restrictions on wavelength optimization and the use of coefficients which represent specific inherent optical properties. Results showed that the new model provides a significantly higher determination coefficient and lower root mean squared error (RMSE) with respect to the original model for upwelling data from Taihu Lake, China. The new model was tested using simulated data for the MERIS and GOCI satellite systems, showing high correlations with the former and poorer correlations with the latter, principally due to the lack of a 709 nm centered waveband. The new model provides numerous advantages, making it a suitable alternative for chlorophyll-a estimations in turbid and eutrophic waters.

引用

页数：6

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