DOI: 10.1002/2015GL063105
论文题名: The signature of mesoscale eddies on the air-sea turbulent heat fluxes in the South Atlantic Ocean
作者: Villas Bôas A.B. ; Sato O.T. ; Chaigneau A. ; Castelão G.P.
刊名: Geophysical Research Letters
ISSN: 0094-8840
EISSN: 1944-8571
出版年: 2015
卷: 42, 期: 6 起始页码: 1856
结束页码: 1862
语种: 英语
英文关键词: air-sea interactions
; mesoscale eddies
; satellite oceanography
; South Atlantic
; surface turbulent heat fluxes
Scopus关键词: Air
; Atmospheric boundary layer
; Atmospheric thermodynamics
; Boundary layers
; Oceanography
; Air sea interactions
; Mesoscale eddy
; Satellite oceanography
; South Atlantic
; Turbulent heat fluxes
; Heat flux
; air-sea interaction
; boundary layer
; cyclone
; heat flux
; mesoscale eddy
; remote sensing
; satellite altimetry
; turbulence
; Atlantic Ocean
; Atlantic Ocean (South)
英文摘要: By collocating 10 years (1999-2009) of remotely sensed surface turbulent heat fluxes with satellite altimetry data, we investigate the impact of oceanic mesoscale eddies on the latent and sensible heat fluxes in the South Atlantic Ocean. In strongly energetic regions, such as the Brazil-Malvinas confluence and the Agulhas Current Retroflection, eddies explain up to 20% of the total variance in the surface turbulent heat fluxes with averaged anomalies of ± (10-20) W/m2. Cyclonic (anticyclonic, respectively) eddies are associated with negative (positive) heat flux anomalies that tend to cool (warm) the marine atmospheric boundary layer. A composite analysis of the turbulent heat flux anomalies inside the eddies reveals a direct relationship between eddy amplitude and the intensity of such anomalies. In addition, these anomalies are stronger near the eddy center, decaying radially to reach minimum values outside the eddies. Key Points Eddies can significantly impact the surface turbulent heat fluxes Stronger heat flux anomalies are associated with large-amplitude eddies Cyclonic eddies contribute to ocean heat gain, while anticyclonic with heat loss ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84927786209&doi=10.1002%2f2015GL063105&partnerID=40&md5=8ac51f976b6dccffe1b14e39e76ee41d
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8456
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Oceanographic Institute of the University of São Paulo, São Paulo, Brazil
Recommended Citation:
Villas Bôas A.B.,Sato O.T.,Chaigneau A.,et al. The signature of mesoscale eddies on the air-sea turbulent heat fluxes in the South Atlantic Ocean[J]. Geophysical Research Letters,2015-01-01,42(6).