Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL074384 |
Prefrontal bore mixing | |
van Haren, Hans1,2; Duineveld, Gerard1,2; de Stigter, Henko1,2 | |
2017-09-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:18 |
文章类型 | Article |
语种 | 英语 |
国家 | Netherlands |
英文摘要 | Rainbow Ridge, a 1950 m deep upthrusted ultramafic block along the axis of the Mid-Atlantic Ridge, has an active hydrothermal vent system at 2400 m on its western slope. However, within 1 km from the vent excessive temperatures are barely measurable, probably due to strong turbulent mixing. This mixing is studied here using a 400 m long high-resolution temperature sensor array moored with a 600 m ranging 75 kHz acoustic Doppler current profiler. Rich internal wave turbulence was recorded, characterized by 100-200 m upshoots and >200 m large overturning in particular near the end of the warming phase of the up and down moving tide. These highly nonlinear internal waves of tides interacting with buoyancy frequency waves extend up to 400 m above the sloping bottom of the ridge. While a turbulent bottom boundary layer could barely be defined, the more intense turbulence higher up in the water column is suggested to lead to the strong dispersion of the hydrothermal plume. |
英文关键词 | deep-ocean internal wave breaking pronounced interior mixing preceding nonlinear bottom front 400m high-resolution temperature sensor mooring Mid-Atlantic Ridge Rainbow hydrothermal vent system |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000413148100036 |
WOS关键词 | MID-ATLANTIC RIDGE ; INTERNAL WAVE REFLECTION ; KAENA RIDGE ; TEMPERATURE ; DISSIPATION ; TOPOGRAPHY ; FLUX ; COMMUNITIES ; TURBULENCE ; BOUNDARY |
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/28545 |
专题 | 气候变化 |
作者单位 | 1.Royal Netherlands Inst Sea Res NIOZ, Den Burg, Netherlands; 2.Univ Utrecht, Den Burg, Netherlands |
推荐引用方式 GB/T 7714 | van Haren, Hans,Duineveld, Gerard,de Stigter, Henko. Prefrontal bore mixing[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(18). |
APA | van Haren, Hans,Duineveld, Gerard,&de Stigter, Henko.(2017).Prefrontal bore mixing.GEOPHYSICAL RESEARCH LETTERS,44(18). |
MLA | van Haren, Hans,et al."Prefrontal bore mixing".GEOPHYSICAL RESEARCH LETTERS 44.18(2017). |
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