Hyperspectral remote sensing of turbidity and chlorophyll a among Nebraska sand hills lakes

被引:75
作者
Fraser, RN [1 ]
机构
[1] Western Michigan Univ, Dept Geog, Kalamazoo, MI 49008 USA
基金
美国国家航空航天局;
关键词
D O I
10.1080/014311698215360
中图分类号
TP7 [遥感技术];
学科分类号
081102 ; 0816 ; 081602 ; 083002 ; 1404 ;
摘要
This study was conducted to establish correlations between reflectance spectra, turbidity and chlorophyll a among 22 fresh to alkaline lakes in Nebraska, U.S.A., sampled in June and July of 1994. Peak reflectance ranged from 2-22 per cent between 500 and 600 nm. Turbidity and chlorophyll a ranged from 1-82 NTU and 1-171 mu g l(-1), respectively, with significant correlation (P<0.001) between the two. Reflectance first-derivatives corresponding to wavelengths 429 and 695 nm, were significantly correlated with chlorophyll a (P<0.001), and derivatives at 429, 628 and 695 nm were significantly correlated with turbidity (P<0.001) despite a wide range in water quality conditions.
引用
收藏
页码:1579 / 1589
页数:11
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