| 长江河口潮波时空特征再分析 |
| |
| 引用本文： | 郭磊城,朱春燕,何青,Wang Zheng Bing,万远扬.长江河口潮波时空特征再分析[J].海洋通报,2017,36(6):652-661. |
| |
| 作者姓名： | 郭磊城 朱春燕 何青 Wang Zheng Bing 万远扬 |
| |
| 作者单位： | 华东师范大学河口海岸学国家重点实验室，上海200062,华东师范大学河口海岸学国家重点实验室，上海200062； Delft University of Technology，Delft 2600 GA，the Netherlands,华东师范大学河口海岸学国家重点实验室，上海200062,华东师范大学河口海岸学国家重点实验室，上海200062； Delft University of Technology，Delft 2600 GA，the Netherlands； Deltares，Delft 2600 MH，the Netherlands,上海河口海岸科学研究中心，上海201201 |
| |
| 基金项目： | 国家自然科学基金（51320105005；41506105）；中国博士后科学基金（2015M580306；2016T90351)；华东师范大学河口海岸学国家重点实验室自主课题（2015RCDW02） |
| |
| 摘 要： | 长江河口的潮波传播受到近岸及河口浅水地形及长江径流的显著影响,表现出很强的时空变化特征。已有相关研究主要关注徐六泾以下的河口段,还缺少对河口系统的潮波特征分析。本文基于大通、南京、徐六泾和牛皮礁4站的年内连续潮位资料,分析了主要天文分潮和浅水分潮的振幅沿程变化、季节变化特征和规律,认识到洪季大径流对江阴以上的近口段潮汐衰减作用显著大于枯季,而河口段的平均潮差有一定的半年周期变化,年内秋季最大。口内高频浅水分潮振幅在河口下段最大,且洪季大于枯季,低频浅水分潮则在河口上游振幅最大,由此反应径流对潮汐改造的非线性作用。这些认识可为水道航运及相关河口研究提供基础认识。最后本文也指出关于长江河口潮汐特征尚需进一步研究的若干问题,以期下一步工作取得相应进展。
|
| 关 键 词： | 长江口 潮汐 径流 潮差 |
| 收稿时间： | 2016/10/2 0:00:00 |
| 修稿时间： | 2017/2/18 0:00:00 |
Examination of tidal wave properties in the Yangtze River estuary |
| |
| GUO Lei-cheng,ZHU Chun-yan,HE Qing,WANG Zheng-bing and WAN Yuan-yang.Examination of tidal wave properties in the Yangtze River estuary[J].Marine Science Bulletin,2017,36(6):652-661. |
| |
| Authors: | GUO Lei-cheng ZHU Chun-yan HE Qing WANG Zheng-bing and WAN Yuan-yang |
| |
| Institution: | State Key Lab. of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China,State Key Lab. of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China; Delft University of Technology, Delft 2600 GA, the Netherlands,State Key Lab. of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China,State Key Lab. of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China; Delft University of Technology, Delft 2600 GA, the Netherlands; Deltares, Delft 2600 MH, theNetherlands and Shanghai Estuarine & Coastal Science Research Center, Shanghai 201201, China |
| |
| Abstract: | The Yangtze River estuary (YRE) is influenced by a high and seasonally-varying river discharge and strong tides. The incoming tidal waves are modulated by river discharge and basin geometry, exhibiting strongly non-linear and non-stationary features. This study analyzed long time series of tidal water levels by harmonic analysis and explored the spatial and temporal variations of tidal ranges and tidal amplitudes of main astronomical and shallow water constituents. The obtained understandings of the tidal wave properties are to the benefit of tidal prediction and management of navigational channel depth and estuarine ecosystems. |
| |
| Keywords: | Yangtze River estuary tidal wave river discharge tidal range |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《海洋通报》浏览原始摘要信息 |
| 点击此处可从《海洋通报》下载免费的PDF全文 |
|
