A new algorithm to estimate chlorophyll-a concentration from the spectral reflectance of inland water
被引:2
作者:
Shu, XZ
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Shanghai Inst Tech Phys, Shanghai 200083, Peoples R ChinaChinese Acad Sci, Shanghai Inst Tech Phys, Shanghai 200083, Peoples R China
Shu, XZ
[1
]
Kuang, DB
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Shanghai Inst Tech Phys, Shanghai 200083, Peoples R ChinaChinese Acad Sci, Shanghai Inst Tech Phys, Shanghai 200083, Peoples R China
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.