Contribution of the Two Types of Ekman Pumping Induced Eddy Heat Flux to the Total Vertical Eddy Heat Flux

被引：4
|
作者：
Li, Dapeng [1 ,2 ]
Chang, Ping [1 ,2 ,3 ]
Ramachandran, Sanjiv [1 ,2 ]
Jing, Zhao [1 ,4 ,5 ]
Zhang, Qiuying [1 ,2 ]
Kurian, Jaison [1 ,2 ]
Gopal, Abishek [1 ,2 ]
Yang, Haiyuan [1 ,4 ,5 ]
机构：
[1] Texas A&M Univ, Int Lab High Resolut Earth Syst Predict, College Stn, TX 77843 USA
[2] Texas A&M Univ, Dept Oceanog, College Stn, TX 77843 USA
[3] Texas A&M Univ, Dept Atmospher Sci, College Stn, TX USA
[4] Ocean Univ China, Inst Adv Ocean Studies, Key Lab Phys Oceanog, Qingdao, Peoples R China
[5] Qingdao Natl Lab Marine Sci & Technol, Qingdao, Peoples R China
来源：
GEOPHYSICAL RESEARCH LETTERS | 2021年 / 48卷 / 09期
基金：
美国国家科学基金会;
关键词：
Ekman pumping; high resolution climate modeling; ocean frontal regions; upper ocean heat transport; vertical eddy heat flux; MIXED-LAYER EDDIES; OCEAN HEAT; MESOSCALE; PARAMETERIZATION; TRANSPORT;
D O I：
10.1029/2021GL092982
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
Based on eddy-rich (0.1 degrees horizontal resolution for ocean) Community Earth System Model simulations, we compute the Ekman pumping induced vertical eddy heat flux using two formulations: the classical and the Stern-Ekman pumping. The two mechanisms yield similar patterns in the eddy-induced vertical heat flux, showing strong upward heat flux in ocean frontal regions such as the western boundary current regions. Using the Gulf Stream Extension region as an example, we estimate (1) the Stern-Ekman pumping induced eddy heat flux is 23% and 12% of the total vertical eddy heat flux at 50 m depth during summer and winter, respectively; (2) the classical Ekman pumping accounts for 82% and 88% of the Stern-Ekman pumping induced eddy heat flux at 50 m during summer and winter, respectively. The second finding indicates eddy current feedback on wind stress is the primary cause for the upward eddy heat flux generated by Ekman pumping.
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页数：9
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