A new algorithm to estimate chlorophyll-a concentration from the spectral reflectance of inland water

被引:2
作者
Shu, XZ [1 ]
Kuang, DB [1 ]
机构
[1] Chinese Acad Sci, Shanghai Inst Tech Phys, Shanghai 200083, Peoples R China
来源
HYPERSPECTRAL REMOTE SENSING AND APPLICATIONS | 1998年 / 3502卷
关键词
chlorophyll; remote sensing; water quality monitoring;
D O I
10.1117/12.317777
中图分类号
TP7 [遥感技术];
学科分类号
081102 ; 0816 ; 081602 ; 083002 ; 1404 ;
摘要
The remote sensing of chlorophyll-a concentration of inland water is troublesome because of the numerous pollutant substances. It was found that the reflectance ratio R(700nm)/R(675nm) depends on not only chlorophyll-a concentration but also the scattering and absorption coefficients of suspensions and dissolved organic matter. The absorption of phycocyanin at 624nm is a very important spectral feature for estimation of chlorophyll-a concentration as well as that of chlorophyll-a. New algorithms were developed, in which reflectance ratio R(600nm)/R(624nm) or R(560nm)/R(624nm) was used as water quality correction.
引用
收藏
页码:254 / 258
页数:5
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