Estimation of chlorophyll-a concentration in estuarine waters: case study of the Pearl River estuary, South China Sea
文献类型：期刊论文
| 作者 | Zhang, Yuanzhi ; Lin, Hui ; Chen, Chuqun ; Chen, Liding ; Zhang, Bing ; Gitelson, Anatoly A. |
| 刊名 | ENVIRONMENTAL RESEARCH LETTERS
 |
| 出版日期 | 2011-04-01 |
| 卷号 | 6期号:2 |
| 中文摘要 | The objective of this work is to estimate chlorophyll-a (chl-a) concentration in the Pearl River estuary in China. To test the performance of algorithms for the estimation of the chl-a concentration in these productive turbid waters, the maximum band ratio (MBR) and near-infrared-red (NIR-red) models are used in this study. Specific focus is placed on (a) comparing the ability of the models to estimate chl-a in the range 1-12 mg m(-3), which is typical for coastal and estuarine waters, and (b) assessing the potential of the Moderate Resolution Imaging Spectrometer (MODIS) and Medium Resolution Imaging Spectrometer (MERIS) to estimate chl-a concentrations. Reflectance spectra and water samples were collected at 13 stations with chl-a ranging from 0.83 to 11.8 mg m(-3) and total suspended matter from 9.9 to 21.5 g m(-3). A close relationship was found between chl-a concentration and total suspended matter concentration with the determining coefficient (R(2)) above 0.89. The MBR calculated in the spectral bands of MODIS proved to be a good proxy for chl-a concentration (R(2) > 0.93). On the other hand, both the NIR-red three-band model, with wavebands around 665, 700, and 730 nm, and the NIR-red two-band model (with bands around 665 and 700 nm) explained more than 95% of the chl-a variation, and we were able to estimate chl-a concentrations with a root mean square error below 1 mg m(-3). The two-and three-band NIR-red models with MERIS spectral bands accounted for 93% of the chl-a variation. These findings imply that the extensive database of MODIS and MERIS images could be used to quantitatively monitor chl-a in the Pearl River estuary. |
| WOS记录号 | WOS:000295326800016 |
| 公开日期 | 2012-10-18 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/7091]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Zhang, Yuanzhi,Lin, Hui,Chen, Chuqun,et al. Estimation of chlorophyll-a concentration in estuarine waters: case study of the Pearl River estuary, South China Sea[J]. ENVIRONMENTAL RESEARCH LETTERS,2011,6(2). |
| APA | Zhang, Yuanzhi,Lin, Hui,Chen, Chuqun,Chen, Liding,Zhang, Bing,&Gitelson, Anatoly A..(2011).Estimation of chlorophyll-a concentration in estuarine waters: case study of the Pearl River estuary, South China Sea.ENVIRONMENTAL RESEARCH LETTERS,6(2). |
| MLA | Zhang, Yuanzhi,et al."Estimation of chlorophyll-a concentration in estuarine waters: case study of the Pearl River estuary, South China Sea".ENVIRONMENTAL RESEARCH LETTERS 6.2(2011). |
入库方式： OAI收割
来源：生态环境研究中心
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