The low water-leaving radiances phenomena around the Yangtze River Estuary

Xianqiang He; Yan Bai; Zhihua Mao; Jianyu Chen

doi:10.1117/12.830250

9 September 2009 The low water-leaving radiances phenomena around the Yangtze River Estuary

Xianqiang He, Yan Bai, Zhihua Mao, Jianyu Chen

Proceedings Volume 7473, Remote Sensing of the Ocean, Sea Ice, and Large Water Regions 2009; 74730R (2009) https://doi.org/10.1117/12.830250
Event: SPIE Remote Sensing, 2009, Berlin, Germany

Abstract

Based on the in-situ data and ocean color remote sensing data of SeaWiFS, we found there was a black water region with the normalized water-leaving radiances less than 0.5 mW/(cm²•μm•sr) at the visible light wavelength. Yangtze River Estuary locates in the East China Sea shelf with shallow water. Affected by the tide mixing and the runoff of the Yangtze River and Qiantang River, the turbidity is very high. Generally, the water-leaving radiance is high in the turbid water because of the large particle scattering. The reason of the occurrence of this black water was analyzed by the inherent optical properties and the ocean color components. The results showed that black water was caused by the relative low values of the suspended particle matter concentration and the back scattering ratio.

Citation Download Citation

Xianqiang He, Yan Bai, Zhihua Mao, and Jianyu Chen "The low water-leaving radiances phenomena around the Yangtze River Estuary", Proc. SPIE 7473, Remote Sensing of the Ocean, Sea Ice, and Large Water Regions 2009, 74730R (9 September 2009); https://doi.org/10.1117/12.830250

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