| 徐六泾站悬移质含沙量比测与精度分析 |
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| 引用本文： | 张志林,高敏,廖建英.徐六泾站悬移质含沙量比测与精度分析[J].人民长江,2010,41(6):48-52. |
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| 作者姓名： | 张志林 高敏 廖建英 |
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| 作者单位： | 1. 长江水利委员会,长江口水文水资源勘测局,上海,200136
2. 交通运输部,长江口航道管理局,上海,200003 |
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| 摘 要： | 通过长江口徐六泾断面大规模的跨越不同水情的现场测流试验,发现利用声学多普勒流速剖面仪(AD-CP)信号推算垂线平均含沙量,与传统值相比,平均相对误差绝对值小于5%,且误差呈正态分布。因此,升级现有的徐六泾浮标测流系统(以ADCP取代现有的ADP),可以实现徐六泾断面的在线实时输沙率监测,填补长江口泥沙站网的空白,为长江口相关规划、设计、科研等提供基础资料。
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| 关 键 词： | 声学多普勒流速剖面仪 声反向散射 悬移质含量 精度评估 徐六泾水文站 长江口 |
Comparing measurement of suspended sediment concentration at Xuliujing Hydrological Station and its accuracy evaluation |
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| ZHANG Zhilin,GAO Min,LIAO Jianying.Comparing measurement of suspended sediment concentration at Xuliujing Hydrological Station and its accuracy evaluation[J].Yangtze River,2010,41(6):48-52. |
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| Authors: | ZHANG Zhilin GAO Min LIAO Jianying |
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| Affiliation: | ZHANG Zhilin1,GAO Min2,LIAO Jianying1(1.Survey Bureau of Hydrology , Water Resources of Yangtze River estuary,Changjiang Water Resources Commission,Shanghai 200136,China,2.Yangtze Estuary Waterway Administration Bureau,Ministry of Transport,Shanghai 200003,China) |
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| Abstract: | Through a series of large-scale in-situ experiments in different water and sediment inflow conditions at Xuliujing Hydrological Station in the Yangtze River estuary,we conclude that the average relative error of vertical mean suspended sediment concentration(SSC) from the acoustic back scatter(ABS) of acoustic doppler current profiler(ADCP) is less than 5 percent compared with the traditional method,and the error shows normal distribution.Therefore,upgrading the present buoyed measurement system,which is to... |
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| Keywords: | acoustic doppler current profiler(ADCP) acoustic back scatter(ABS) suspended sediment concentration(SSC) accuracy evaluation Xuliujing Hydrological Station Yangtze River estuary |
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