GSTDTAP  > 气候变化
DOI10.1029/2020GL088083
Tidally‐forced lee waves drive turbulent mixing along the Arctic Ocean margins
Ilker Fer; Zoé; Koenig; Igor E. Kozlov; Marek Ostrowski; Tom P. Rippeth; Laurie Padman; Anthony Bosse; Eivind Kolå; s
2020-08-06
发表期刊Geophysical Research Letters
出版年2020
英文摘要

In the Arctic Ocean, limited measurements indicate that the strongest mixing below the atmospherically forced surface mixed layer occurs where tidal currents are strong. However, mechanisms of energy conversion from tides to turbulence, and the overall contribution of tide‐driven mixing to Arctic Ocean state, are poorly understood. We present measurements from the shelf north of Svalbard that show abrupt isopycnal vertical displacements of 10‐‐50 m and intense dissipation associated with cross‐isobath diurnal tidal currents of ~0.15 ms‐1. Energy from the barotropic tide accumulated in a trapped baroclinic lee wave during maximum downslope flow and was released around slack water. During a 6‐h turbulent event, high frequency internal waves were present, the full 300 m depth water column became turbulent, dissipation rates increased by a factor of 100 and turbulent heat flux averaged 15 Wm‐2 compared with the background rate of 1 Wm‐2.

领域气候变化
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文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/287648
专题气候变化
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Ilker Fer,Zoé,Koenig,等. Tidally‐forced lee waves drive turbulent mixing along the Arctic Ocean margins[J]. Geophysical Research Letters,2020.
APA Ilker Fer.,Zoé.,Koenig.,Igor E. Kozlov.,Marek Ostrowski.,...&s.(2020).Tidally‐forced lee waves drive turbulent mixing along the Arctic Ocean margins.Geophysical Research Letters.
MLA Ilker Fer,et al."Tidally‐forced lee waves drive turbulent mixing along the Arctic Ocean margins".Geophysical Research Letters (2020).
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