Monitoring the dynamic of suspended sediment using tower-based water spectrum observing system in the Hangzhou Bay

Qian Dai; Fang Gong; Haiqing Huang; Xianqiang He; Jianyu Chen; Qiankun Zhu

doi:10.1117/12.2061267

8 October 2014 Monitoring the dynamic of suspended sediment using tower-based water spectrum observing system in the Hangzhou Bay

Qian Dai, Fang Gong, Haiqing Huang, Xianqiang He, Jianyu Chen, Qiankun Zhu

Author Affiliations +

Proceedings Volume 9221, Remote Sensing and Modeling of Ecosystems for Sustainability XI; 92210Q (2014) https://doi.org/10.1117/12.2061267
Event: SPIE Optical Engineering + Applications, 2014, San Diego, California, United States

Abstract

Dynamic variations of suspended sediment (TSM) in extremely turbid waters of Hangzhou Bay (HZB) have been studied using a tower-based high-frequency water-spectrum observing system. We developed a practical data processing method for the high-frequency water-spectrum observation. In addition, the method was validated by the ASD measurement, and the results showed that the tower-measured normalized water-leaving radiance was consistent with it measured by ASD, with the correlation coefficient greater than 0.90 and the mean relative error of 6.48%. Based on the tower-measured water spectrum, the TSM was retrieved further with high frequency, and the results showed that the TSM in the HZB had significant diurnal and seasonal variations. The diurnal dynamics might mainly be caused by tidal induced resuspension, yet the seasonal variations might be derived by winds largely.

Citation Download Citation

Qian Dai, Fang Gong, Haiqing Huang, Xianqiang He, Jianyu Chen, and Qiankun Zhu "Monitoring the dynamic of suspended sediment using tower-based water spectrum observing system in the Hangzhou Bay", Proc. SPIE 9221, Remote Sensing and Modeling of Ecosystems for Sustainability XI, 92210Q (8 October 2014); https://doi.org/10.1117/12.2061267

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