| 黄河调水调沙期间黄河入海水沙的扩散与通量 |
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| 引用本文： | 毕乃双,杨作升,王厚杰,范德江,季有俊.黄河调水调沙期间黄河入海水沙的扩散与通量[J].海洋地质与第四纪地质,2010(2). |
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| 作者姓名： | 毕乃双 杨作升 王厚杰 范德江 季有俊 |
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| 作者单位： | 中国海洋大学海底科学和探测技术教育部重点实验室; |
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| 基金项目： | 国家重点基础研究发展规划项目(2002CB412404);;国家自然科学基金项目(40876019) |
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| 摘 要： | 以2007年夏季黄河调水调沙期间黄河三角洲海域3断面连续站及渤海南部24个大面站观测的流场、温度、盐度及含沙量资料为依据,分析了调查区水沙扩散特征,计算了各连续站的拉格朗日余流及泥沙输送单宽通量。结果表明,黄河入海泥沙扩散范围非常有限,主要分布在南至莱州湾西南部、北至北纬38°附近离岸约20km以内的带状沿岸区域;但黄河冲淡水出现大面积扩散,覆盖了整个莱州湾的北部和中部,最远可至龙口附近,黄河入海水沙扩散不同步。在现行河口和钓口流路废弃河口存在两个高浓度泥沙中心,分别对应于黄河入海泥沙和废弃钓口流路海域底质再悬浮产生的两个泥沙来源。河口及三角洲近岸切变锋的阻隔及辐聚作用,是大部分黄河入海泥沙沉积在河口及沿岸13m水深以内的主要动力因素。受余流方向及水体垂向湍动较弱的影响,两个高浓度泥沙中心很少有泥沙交换。冲淡水的大面积扩散主要受表层余环流的影响。余流及悬浮泥沙通量计算显示,夏季黄河入海水沙在近岸主要向东北方向扩散。
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| 关 键 词： | 悬浮泥沙扩散 冲淡水 泥沙通量 动力机制 夏季黄河调水调沙 |
CHARACTERISTICS OF DISPERSAL OF THE YELLOW RIVER WATER AND SEDIMENT TO THE SEA DURING WATER-SEDIMENT REGULATION PERIOD OF THE YELLOW RIVER AND ITS DYNAMIC MECHANISM |
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| BI Naishuang,YANG Zuosheng,WANG Houjie,FAN Dejiang,JI Youjun.CHARACTERISTICS OF DISPERSAL OF THE YELLOW RIVER WATER AND SEDIMENT TO THE SEA DURING WATER-SEDIMENT REGULATION PERIOD OF THE YELLOW RIVER AND ITS DYNAMIC MECHANISM[J].Marine Geology & Quaternary Geology,2010(2). |
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| Authors: | BI Naishuang YANG Zuosheng WANG Houjie FAN Dejiang JI Youjun |
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| Institution: | Key Lab of Submarine Sciences & Prospecting Techniques;MOE;Ocean University of China;Qingdao 266100;China |
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| Abstract: | Data of current velocity,water temperature,salinity and concentration of suspended sediment were collected from 3 time-series survey transects of 3 boats off the Yellow River delta and 24 grid survey stations in the adjacent Bohai Sea during water-sediment regulation period of the River.Based on the collected data,the dispersal characteristics of the river water and sediment to the sea were analyzed,and the residual current and sediment flux of the time-series stations were calculated.The results show that ... |
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| Keywords: | sediment dispersal diluted water sediment flux dynamic mechanism water-sediment regulation of the Yellow River in summer season |
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