Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018GL081106 |
Extremely Low Frequency (0.1 to 1.0 mHz) Surf Zone Currents | |
Elgar, Steve1; Raubenheimer, Britt1; Clare, David B.2; Moulton, Melissa3 | |
2019-02-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:3页码:1531-1536 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Low-frequency surf zone eddies disperse material between the shoreline and the continental shelf, and velocity fluctuations with frequencies as low as a few mHz have been observed previously on several beaches. Here spectral estimates of surf zone currents are extended to an order of magnitude lower frequency, resolving an extremely low frequency peak of approximately 0.5 mHz that is observed for a range of beaches and wave conditions. The magnitude of the 0.5-mHz peak increases with increasing wave energy and with spatial inhomogeneity of bathymetry or currents. The 0.5-mHz peak may indicate the frequency for which nonlinear energy transfers from higher-frequency, smaller-scale motions are balanced by dissipative processes and thus may be the low-frequency limit of the hypothesized 2-D cascade of energy from breaking waves to lower frequency motions. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000462072800046 |
WOS关键词 | MEAN LONGSHORE-CURRENT ; SHEAR INSTABILITIES ; RIP CURRENTS ; WAVES ; GENERATION ; DISPERSION ; TRANSPORT |
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/181372 |
专题 | 气候变化 |
作者单位 | 1.Woods Hole Oceanog Inst, Woods Hole, MA 02543 USA; 2.Clark Geosci Consulting, Santa Cruz, CA USA; 3.Univ Washington, Appl Phys Lab, Seattle, WA 98105 USA |
推荐引用方式 GB/T 7714 | Elgar, Steve,Raubenheimer, Britt,Clare, David B.,et al. Extremely Low Frequency (0.1 to 1.0 mHz) Surf Zone Currents[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(3):1531-1536. |
APA | Elgar, Steve,Raubenheimer, Britt,Clare, David B.,&Moulton, Melissa.(2019).Extremely Low Frequency (0.1 to 1.0 mHz) Surf Zone Currents.GEOPHYSICAL RESEARCH LETTERS,46(3),1531-1536. |
MLA | Elgar, Steve,et al."Extremely Low Frequency (0.1 to 1.0 mHz) Surf Zone Currents".GEOPHYSICAL RESEARCH LETTERS 46.3(2019):1531-1536. |
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