Remote Sensing retrieval and dynamic driving force analysis of suspended sediment in Hangzhou Bay
Remote Sensing retrieval and dynamic driving force analysis of suspended sediment in Hangzhou Bay
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发表时间：
2014
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通讯作者：
Wang Fe
中科院分区：
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作者：
Wang Fe
利用原位悬沙浓度（SSC）和光谱数据，建立了hj -1卫星CCD的悬沙浓度反演模型。利用2012年5月7日的检索结果分析杭州湾海域SSC的分布。利用杭州湾海域SSC实测资料、水深和风速资料，分析了杭州湾海域SSC的动态驱动力。结果表明：长江口海域SSC分布受潮汐、水深、风速、径流和输沙的综合影响。杭州湾南纬分布受潮汐驱动，随时间剧烈波动。此外，当风速较大时，风作为SSC变化的另一个重要驱动力可以忽略不计。
With in-situ suspended sediment concentration(SSC)and spectral data,the SSC retrieval model of HJ-1Asatellite CCD was built.The distribution of SSC in Hangzhou Bay was analyzed with the retrieved result on May 7,2012.Using the field SSC measurements,water depth and wind speed data,the dynamic driving force of SSC in Hangzhou Bay was analyzed.The results showed that the distribution of SSC was affected by the combined effects of tides,bathymetry,wind speed,runoff and sediment running out of the Yangtze River estuary.Driven by the tide,the SSC of Hangzhou Bay fluctuated violently with time.In addition,when the wind speed is high,the wind is ignorable as another important driving force for the SSC variation.