| DOI: | 10.1002/2013GL059087
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| 论文题名: | Lee wave generation rates in the deep ocean |
| 作者: | Wright C.J.; Scott R.B.; Ailliot P.; Furnival D.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-10164
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| EISSN: | 1944-9895
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| 出版年: | 2014
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| 卷: | 41, 期:7 | | 起始页码: | 2434
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| 结束页码: | 2440
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| 语种: | 英语
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| 英文关键词: | current meters
; deep ocean
; lee waves
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| Scopus关键词: | Budget control
; Ocean currents
; Current meters
; Deep ocean
; Hier-archical clustering
; Lee waves
; Mechanical energies
; Ocean surface winds
; Standard deviation
; Strong dependences
; Estimation
; buoyancy
; data set
; deep sea
; energy budget
; geostrophic flow
; lee wave
; oceanic current
; seafloor
; wave generation
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| 英文摘要: | Using the world's largest data set of in situ ocean current measurements, combined with a high-resolution topography roughness data set, we use a model-assisted hierarchical clustering methodology to estimate the global lee wave generation rate at the ocean floor. Our analysis suggests that internal wave generation contributes 0.75±0.19 TW (±2 standard deviation) to the oceanic energy budget but with a strong dependence on the Brunt-Väisäla (buoyancy) frequency climatology used. This estimate is higher than previous calculations and suggests that internal wave generation may be a much more significant contributor to the global oceanic mechanical energy budget than had previously been assumed. Our results imply that lee wave generation and propagation may be a dominant sink of at least half and potentially the overwhelming majority of ocean surface wind work on the geostrophic circulation. Key Points Internal wave generation may contribute 0.75±0.19 TW to oceanic energy budget This estimate is much higher than previous calculations Implies lee wave generation may be a dominant sink of wind work on surface © 2014. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84897331945&doi=10.1002%2f2013GL059087&partnerID=40&md5=526283ada8326561bc390c2a3308513c
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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/7428
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Laboratoire de Physique des Océans, Université de Bretagne Occidentale, Brest, France
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| Recommended Citation: | |
Wright C.J.,Scott R.B.,Ailliot P.,et al. Lee wave generation rates in the deep ocean[J]. Geophysical Research Letters,2014-01-01,41(7).
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