| DOI: | 10.1002/2016GL071226
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| 论文题名: | Laboratory air-entraining breaking waves: Imaging visible foam signatures to estimate energy dissipation |
| 作者: | Callaghan A.H.; Deane G.B.; Stokes M.D.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8449
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| EISSN: | 1944-8180
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| 出版年: | 2016
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| 卷: | 43, 期:21 | | 起始页码: | 11320
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| 结束页码: | 11328
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| 语种: | 英语
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| 英文关键词: | Breaking waves
; Bubble Plume Depth
; Energy Dissipation
; Remote Sensing
; Two-phase flow
; Whitecap Foam
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| Scopus关键词: | Energy dissipation
; Marine engineering
; Ocean engineering
; Remote sensing
; Two phase flow
; Water waves
; Air-sea exchange
; Breaking waves
; Bubble plumes
; Engineering design
; Laboratory experiments
; Ocean atmosphere
; Time integrals
; Wave energy dissipation
; Wave energy conversion
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| 英文摘要: | Oceanic air-entraining breaking waves fundamentally influence weather and climate through bubble-mediated ocean-atmosphere exchanges, and influence marine engineering design by impacting statistics of wave heights, crest heights, and wave loading. However, estimating individual breaking wave energy dissipation in the field remains a fundamental problem. Using laboratory experiments, we introduce a new method to estimate energy dissipation by individual breaking waves using above-water images of evolving foam. The data show the volume of the breaking wave two-phase flow integrated in time during active breaking scales linearly with wave energy dissipated. To determine the volume time-integral, above-water images of surface foam provide the breaking wave timescale and horizontal extent of the submerged bubble plume, and the foam decay time provides an estimate of the bubble plume penetration depth. We anticipate that this novel remote sensing method will improve predictions of air-sea exchanges, validate models of wave energy dissipation, and inform ocean engineering design. ©2016. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84998538637&doi=10.1002%2f2016GL071226&partnerID=40&md5=91ce49cbd10832c2760f5e8a3eaa6943
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/9412
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | Scripps Institution of Oceanography, La Jolla, CA, United States
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| Recommended Citation: | |
Callaghan A.H.,Deane G.B.,Stokes M.D.. Laboratory air-entraining breaking waves: Imaging visible foam signatures to estimate energy dissipation[J]. Geophysical Research Letters,2016-01-01,43(21).
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