Study on Polarization Spectral Feature of Suspended Sediment in the Water Body
ZHU Jin1, 2, WANG Xian-hua1, 2, PAN Bang-long1, 2, 3
1. Key Laboratory of Optical Calibration and Characterization, Chinese Academy of Sciences, Hefei 230031, China 2. Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China 3. Environment Engineering Department, Anhui University of Architecture, Hefei 230601, China
Abstract：Remote sensing of lake water based on water-leaving radiance is to retrieve the concentrations of suspended sediment, phytoplankton and yellow substance which have great impacts on spectrum to assess the water quality. Howerver, because of the complexity of the lake water compositons and the interference between the different components, it is of great difficulty to get accurate results with the reflectance spectrum method developed recently. In the present paper, the authors firstly discussed the reflectance and polarization spectral feature of suspended sediment water body, found out the relations of the reflectance and the degree of polarization of water-leaving radiance and the concentration of suspended sediment at the sensitive bands. The authors also compared the effectiveness of the retrieval approaches based on reflectance and polarization in laboratory water body and Chaohu water body respectively. The results show that in the lake water body where the constituents are very complex, the polarization information has greater capacity of anti-jamming, therefore it will have great potential applictions in lake water quality remote sensing.
Key words：Suspended sediment;Degree of polarization;Polarization spectrum;Model
朱 进1, 2，王先华1, 2，潘邦龙1, 2, 3 . 水体悬浮泥沙的偏振光谱特性研究[J]. 光谱学与光谱分析, 2012, 32(07): 1913-1917.
ZHU Jin1, 2, WANG Xian-hua1, 2, PAN Bang-long1, 2, 3 . Study on Polarization Spectral Feature of Suspended Sediment in the Water Body. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2012, 32(07): 1913-1917.
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