DOI: 10.1175/JCLI-D-14-00564.1
Scopus记录号: 2-s2.0-84941998507
论文题名: The influence of high-frequency atmospheric forcing on the circulation and deep convection of the Labrador Sea
作者: Holdsworth A.M. ; Myers P.G.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2015
卷: 28, 期: 12 起始页码: 4980
结束页码: 4996
语种: 英语
Scopus关键词: Atmospheric thermodynamics
; Kinetic energy
; Kinetics
; Natural convection
; Oceanography
; Atmosphere-ocean interactions
; Deep convection
; Forcing
; Mesoscale process
; Ocean circulation
; Ocean model
; Atmospheric temperature
; air-sea interaction
; atmospheric convection
; atmospheric forcing
; climatology
; gyre
; mesoscale meteorology
; oceanic circulation
; Atlantic Ocean
; Atlantic Ocean (North)
; Labrador Sea
英文摘要: The influence of high-frequency atmospheric forcing on the circulation of the North Atlantic Ocean with emphasis on the deep convection of the Labrador Sea was investigated by comparing simulations of a coupled ocean-ice model with hourly atmospheric data to simulations in which the high-frequency phenomena were filtered from the air temperature and wind fields. In the absence of high-frequency atmospheric forcing, the strength of the Atlantic meridional overturning circulation and subpolar gyres was found to decrease by 25%. In the Labrador Sea, the eddy kinetic energy decreased by 75% and the average maximum mixed layer depth decreased by between 20% and 110% depending on the climatology. In particular, high-frequency forcing was found to have a greater impact on mixed layer deepening in moderate to warm years whereas in relatively cold years the temperatures alone were enough to facilitate deep convection. Additional simulations in which either the wind or temperature was filtered revealed that the wind, through its impact on the bulk formulas for latent and sensible heat, had a greater impact on deep convection than the temperature. © 2015 American Meteorological Society. 资助项目: NSERC, Natural Sciences and Engineering Research Council of Canada
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50824
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, AB, Canada
Recommended Citation:
Holdsworth A.M.,Myers P.G.. The influence of high-frequency atmospheric forcing on the circulation and deep convection of the Labrador Sea[J]. Journal of Climate,2015-01-01,28(12)