| 苏北废黄河口声学多普勒测流中向上分量的分析 |
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| 引用本文： | 周良勇,陈斌,刘健,梁源,胡刚,沙旭光.苏北废黄河口声学多普勒测流中向上分量的分析[J].海洋地质动态,2010,26(1). |
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| 作者姓名： | 周良勇 陈斌 刘健 梁源 胡刚 沙旭光 |
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| 作者单位： | 国土资源部海洋油气资源和环境地质重点实验室,青岛,266071;青岛海洋地质研究所,青岛,266071 |
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| 摘 要： | 利用对苏北废黄河口25 h三船同步声学多普勒测流仪(ADP)测流和悬浮体观测资料,研究了向上分量流速对悬浮泥沙扩散和输运的影响。ADP测量不仅提供水平方向的流分量,还提供垂向的流分量,各分量帮助了解底层悬浮泥沙与海底的沉积物的交换和向上扩散。向上流分量比水平方向的流分量小,值在5 cm/s以内,但是它的变化是有规律的,随涨潮、落潮发生变化。本地区潮周期内悬浮泥沙的变化与潮流相位变化密切,沙峰出现在涨急或落急之后,3个站在潮周期内都出现4个沙峰。但是,各站悬沙的再悬浮是不同的。分析显示,10 m水深处,底层存在较强的再悬浮和再沉积,存在向上和向下的流;而在水深15~17 m处,底部、下部主要是向上的分量,只有上部存在向下分量,因此较深处可能较少发生沉积。
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| 关 键 词： | 声学多普勒测流 流速向上分量 同步测流 南黄海 |
ANALYSIS OF UPWARD VELOCITIES OF ADP MEASUREMENTS OFF ABANDONED YELLOW RIVER MOUTH OF NORTH JIANGSU COASTS |
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| ZHOU Liang-yong,CHEN Bin,IAU Jian,LIANG Yuan,HU Gang,SHA Xu-guang.ANALYSIS OF UPWARD VELOCITIES OF ADP MEASUREMENTS OFF ABANDONED YELLOW RIVER MOUTH OF NORTH JIANGSU COASTS[J].Marine Geology Development,2010,26(1). |
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| Authors: | ZHOU Liang-yong CHEN Bin IAU Jian LIANG Yuan HU Gang SHA Xu-guang |
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| Institution: | 1 Key Laboratory of Marine Petroleum Resources and Environmental Geology;Ministry of Land and Resources;Qingdao 266071;China;2 Qingdao Institute of Marine Geology;China |
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| Abstract: | The ADP(acoustic Doppler profiler) measurements show us current velocity in upward direction that is not given by traditional methods.The upward velocity is seldom taken into account in the current analysis.Here we used data of a 3-vessel simultaneous measurement to analyze the component.The velocities are smaller than the northward or eastward ones,usually less than 12 cm/s.However,the changes of the velocities are regular,herein the velocities are meaningful.The upward velocities probably reflect the up a... |
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