Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018GL077966 |
Observations of Mud-Induced Periodic Stratification in a Hyperturbid Estuary | |
Becker, Marius1; Maushake, Christian2; Winter, Christian1 | |
2018-06-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:11页码:5461-5469 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany |
英文摘要 | This study presents new observations of fluid mud transport and of the interaction between mud-induced stratification and the flow. Data collected in a hyperturbid estuarine tidal channel reveal details of the intratidal entrainment asymmetry, characterized by quasi-instantaneous entrainment and upstream pumping of mud during flood, and a gradual reduction of layer thickness by shear dispersion during ebb. Rapid restratification early during the flood phase restores the predominant two-layer structure and delimits the transport period, which is then significantly shorter than the overall flood duration. The hydraulic cross section is reduced, causing an increase of the salinity intrusion into the estuary at the end of the flood. The fluid mud layer occupies on average 40% of the water depth, and stratification exceeds that of highly stratified salt wedge estuaries. These data show how mud-induced periodic stratification influences flow structure and sediment transport and thereby contribute to the understanding of the dynamics of hyperturbid estuaries. |
英文关键词 | estuarine dynamics periodic stratification entrainment fluid mud tidal asymmetry density effects |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000436249900028 |
WOS关键词 | AMAZON CONTINENTAL-SHELF ; HIGHLY TURBID ESTUARIES ; FINE SEDIMENT TRANSPORT ; SUSPENDED SEDIMENT ; EMS RIVER ; TIDAL ASYMMETRY ; FLUID-MUD ; DYNAMICS ; CHANNEL ; CURRENTS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/26453 |
专题 | 气候变化 |
作者单位 | 1.Univ Bremen, Ctr Marine Environm Sci, MARUM, Bremen, Germany; 2.Fed Waterways Engn & Res Inst, BAW, Hamburg, Germany |
推荐引用方式 GB/T 7714 | Becker, Marius,Maushake, Christian,Winter, Christian. Observations of Mud-Induced Periodic Stratification in a Hyperturbid Estuary[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(11):5461-5469. |
APA | Becker, Marius,Maushake, Christian,&Winter, Christian.(2018).Observations of Mud-Induced Periodic Stratification in a Hyperturbid Estuary.GEOPHYSICAL RESEARCH LETTERS,45(11),5461-5469. |
MLA | Becker, Marius,et al."Observations of Mud-Induced Periodic Stratification in a Hyperturbid Estuary".GEOPHYSICAL RESEARCH LETTERS 45.11(2018):5461-5469. |
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