Retrieval of chlorophylla and suspended solid concentrations by hyperspectral remote sensing in Taihu Lake, China

Yang Dingtian; Pan Delu; Zhang Xiaoyu; Zhang Xiaofeng; He Xianqiang; Li Shujing

doi:10.1007/BF02842860

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Retrieval of chlorophylla and suspended solid concentrations by hyperspectral remote sensing in Taihu Lake, China

Updated：2023-05-16

- Retrieval of chlorophylla and suspended solid concentrations by hyperspectral remote sensing in Taihu Lake, China
- Journal of Oceanology and Limnology Vol. 24, Issue 4, Pages: 428-434(2006)
- Affiliations：
  
  1. Key Laboratory of Tropical Marine Environmental Dynamics (LED) South China Sea Institute of Oceanography Chinese Academy of Sciences
  2. State Key Laboratory of Satellite Ocean Environment Dynamics Second Institute of Oceanography SOA
- Author bio：
- Funds：
- DOI：10.1007/BF02842860
  CLC：
- Online First：31 January 2013，
  
  Published：2006
- Accepted：
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Dingtian, Y., Delu, P., Xiaoyu, Z. et al. Retrieval of chlorophylla and suspended solid concentrations by hyperspectral remote sensing in Taihu Lake, China., Chin. J. Ocean. Limnol. 24, 428–434 (2006). https://doi.org/10.1007/BF02842860
DOI：

Dingtian, Y., Delu, P., Xiaoyu, Z. et al. Retrieval of chlorophylla and suspended solid concentrations by hyperspectral remote sensing in Taihu Lake, China., Chin. J. Ocean. Limnol. 24, 428–434 (2006). https://doi.org/10.1007/BF02842860 DOI：

摘要

Abstract

Chlorophylla (chl-a) and suspended solid concentrations are two frequently used water quality parameters for monitoring a lake. Traditional measurement of chl-a and suspended solids

requiring laborious laboratory work

which is often expensive and time consuming. Hyperspectral remote-sensing measurement provides a fast and easy tool for estimating water trophic status.In situ hyperspectral data on March 7–8

July 6–7

September 20 and December 7–8

2004 and the corresponding water chemical data were used to regress the algorithm of water quality parameters. Results showed that the peak of water leaving radiance around 700 nm (R 700) varied proportionally with chl-a concentration

and moved to infrared when algal bloom occurred. The reflectance ratio ofR 702/R 685 was well correlated with chl-a when water surface in no algal bloom case and the correlation coefficient was better if absorption of phycocyanin was considered. The reflectance ratioR 620/R 531 was highly correlated to the concentration of suspended solids. The relationship between suspended solids and other band groups were also compared. Secchi disk depth could be calculated by non-linear correlation with suspended solids concentration.

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references

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