Convection: a neglected pathway for downward transfer of wind energy in the oceanic mixed layer

张钰; 王伟

doi:10.1007/s00343-018-7081-1

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Convection: a neglected pathway for downward transfer of wind energy in the oceanic mixed layer

Physics | Updated：2023-05-19

- Convection: a neglected pathway for downward transfer of wind energy in the oceanic mixed layer
- Convection: a neglected pathway for downward transfer of wind energy in the oceanic mixed layer
- 海洋湖沼学报（英文） 2018年36卷第4期页码：1189-1197
- Affiliations：
  
  Physical Oceanography Laboratory/CIMST, Ocean University of China and Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
- Author bio：
  
  ZHANG Yu, yuz@ouc.edu.cn
- Funds：
  
  the National Basic Research Program of China (973 Program)(2015CB954300);the AoShan Talents Program Supported by Qingdao National Laboratory for Marine Science and Technology(2015ASTP-OS02);the National Natural Science Foundation of China(41376011)
- DOI：10.1007/s00343-018-7081-1
  中图分类号：
- 收稿：2017-03-18，
  
  录用：2017-5-12，
  
  网络首发：2017-06-19，
  
  纸质出版：2018-07
- Accepted：
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张钰, 王伟. Convection: a neglected pathway for downward transfer of wind energy in the oceanic mixed layer[J]. 海洋湖沼学报（英文）, 2018,36(4):1189-1197.

Yu ZHANG, Wei WANG. Convection: a neglected pathway for downward transfer of wind energy in the oceanic mixed layer[J]. Chinese Journal of Oceanology and Limnology, 2018, 36(4): 1189-1197.
张钰, 王伟. Convection: a neglected pathway for downward transfer of wind energy in the oceanic mixed layer[J]. 海洋湖沼学报（英文）, 2018,36(4):1189-1197. DOI： 10.1007/s00343-018-7081-1.

Yu ZHANG, Wei WANG. Convection: a neglected pathway for downward transfer of wind energy in the oceanic mixed layer[J]. Chinese Journal of Oceanology and Limnology, 2018, 36(4): 1189-1197. DOI： 10.1007/s00343-018-7081-1.

摘要

Abstract

Upper-ocean turbulent mixing plays a vital role in mediating air-sea fluxes and determining mixed-layer properties

but its energy source

especially that near the base of the mixed layer

remains unclear. Here we report a potentially significant yet rarely discussed pathway to turbulent mixing in the convective mixed layer. During convection

as surface fluid drops rapidly in the form of convective plumes

intense turbulence kinetic energy (TKE) generated via surface processes such as wave breaking is advected downward

enhancing TKE and mixing through the layer. The related power

when integrated over the global ocean except near the surface where the direct effect of breaking waves dominates

is estimated at

(1)TW

comparable to that required by maintaining the Meridional Overturning Circulation (MOC). The mechanism in question therefore deserves greater research attention

especially in view of the potential significance of its proper representation in climate models.

关键词

Keywords

references

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