气候变化领域集成服务门户(CCPortal): Surface Heat Flux Induced by Mesoscale Eddies Cools the Kuroshio-Oyashio Extension Region

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DOI	10.1029/2019GL086050
	Surface Heat Flux Induced by Mesoscale Eddies Cools the Kuroshio-Oyashio Extension Region
	Shan X.; Jing Z.; Gan B.; Wu L.; Chang P.; Ma X.; Wang S.; Chen Z.; Yang H.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:1
英文摘要	Sea surface temperature (SST) is a key player in the air-sea interaction, influencing storm tracks, atmospheric circulation, and climate modes. Although prevailing theories attribute variations of large-scale SST to atmosphere forcing and ocean internal dynamics, we find that sea surface heat flux anomalies induced by mesoscale eddies exert significant influences on the upper-ocean heat budget in the Kuroshio-Oyashio extension region. Despite making nearly no contribution to the net heat exchange at the air-sea interface, the eddy-induced heat flux anomalies weaken the thermal stratification in the upper ocean and result in pronounced sea surface cooling. The underlying dynamics is the efficient dissipation of eddy potential energy by eddy-induced heat flux anomalies. This makes the conversion of eddy potential energy to eddy kinetic energy significantly reduced, corresponding to a weaker eddy-induced restratification flux. The finding complements the existing theories on large-scale SST dynamics and has important implications for understanding extratropical climate variability. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Climatology; Kinetic energy; Kinetics; Molecular physics; Ocean currents; Potential energy; Surface waters; Upper atmosphere; Air sea interactions; Air-sea interface; Atmospheric circulation; Eddy kinetic energy; Extratropical climate variability; Sea surface temperature (SST); Surface heat fluxes; Underlying dynamics; Heat flux; climate change; eddy covariance; energy dissipation; heat budget; heat flux; kinetic energy; mesoscale eddy; sea surface temperature; surface temperature; upper ocean; Kuroshio Extension; Oyashio Region; Pacific Ocean
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170894
作者单位	Key Laboratory of Physical Oceanography/Institute for Advanced Ocean Studies, Ocean University of China and Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; Department of Oceanography, Texas A&M University, College Station, TX, United States; Department of Atmospheric Sciences, Texas A&M University, College Station, TX, United States
推荐引用方式 GB/T 7714	Shan X.,Jing Z.,Gan B.,et al. Surface Heat Flux Induced by Mesoscale Eddies Cools the Kuroshio-Oyashio Extension Region[J],2020,47(1).
APA	Shan X..,Jing Z..,Gan B..,Wu L..,Chang P..,...&Yang H..(2020).Surface Heat Flux Induced by Mesoscale Eddies Cools the Kuroshio-Oyashio Extension Region.Geophysical Research Letters,47(1).
MLA	Shan X.,et al."Surface Heat Flux Induced by Mesoscale Eddies Cools the Kuroshio-Oyashio Extension Region".Geophysical Research Letters 47.1(2020).