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基于ADCP的长江河口推移质运动特性研究 被引量:2

Study on characteristics of bed-load transport in the Yangtze River estuary with Acoustic Doppler Current Profiler
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摘要 基于多普勒声学流速剖面仪(ADCP)在长江口6个测点(长兴岛北侧、南北槽分流口、崇明东滩南侧、横沙岛北侧、南汇南滩和横沙通道北侧)观测的数据,利用ADCP底跟踪功能观测底床推移质运动过程。结果表明:通过ADCP数据,在涨、落急时段可以清晰地看到是否存在推移质运动;直观表达了推移质运动速度在一个潮周期内的变化过程;推移质运动速度变化过程曲线与潮流流速变化过程曲线呈现"对应、不对称"的特征;推移质运动速度的日不等现象比潮流流速日不等现象更加显著。 The bed-load transport process was measured using the ADCP techniquebased on the data observed at six fixed points in the Yangtze River estuary. The results showed that:(1) the bed-load transport processescould be observed through the bottom tracking map during the ebb and flood maximum;(2) the influence of semidiurnal tide on the periodic change of bed-load transport velocitycould be described clearly;(3) the relationship between displacement-time and velocity-time presented asymmetrical characteristics; (4) the diurnal inequality of bed-load was more remarkable than that of tidal currents.
出处 《海洋通报》 CAS CSCD 北大核心 2015年第4期385-391,共7页 Marine Science Bulletin
基金 国家自然科学基金(41476075) 国家自然科学专项基金(41340044)
关键词 ADCP 推移质运动 长江口 ADCP bed-load transport process Yangtze River estuary
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参考文献9

  • 1胡浩,程和琴,杨忠勇,计娜.基于ADCP的长江口推移质运动遥测技术研究[J].人民长江,2014,45(14):5-9. 被引量:1
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二级参考文献8

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