杭州湾海域水体悬沙粒度统计分析

The statistical analysis of suspended sediment particle sizes in the Hangzhou Bay

利用2000年9月在杭州湾进行的原型水文泥沙测验所获取的648个悬沙粒度样品,进行了样品粒度统计分析,结果表明:在杭州湾测验区域,粒径为4.00～20.20μm的悬沙出现频率最高;悬沙的中值粒径值自东向西迅速增大;北岸海域悬沙的中值粒径值大于南岸海域悬沙的中值粒径值。

According to statistically analyzing 648 samples obtained from the prototype survey in hydrology and suspended load during September 2000, the results show that the frequency of suspended sediment with particle diameter of 400 μm to 2020 μm is prevailing, the median diameter in northern sea area is bigger than that in southern part and the distribution of median diameter expands from the east to the west in the study area of the Hangzhou Bay.