DOI: 10.1175/JCLI-D-11-00657.1
Scopus记录号: 2-s2.0-84867680405
论文题名: Large-scale atmospheric circulation favoring deep-and intermediate-water formation in the Mediterranean Sea
作者: Papadopoulos V.P. ; Josey S.A. ; Bartzokas A. ; Somot S. ; Ruiz S. ; Drakopoulou P.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2012
卷: 25, 期: 18 起始页码: 6079
结束页码: 6091
语种: 英语
Scopus关键词: Air sea interactions
; Atmospheric circulation
; Deep convection
; Mediterranean sea
; Statistical techniques
; Atmospheric humidity
; Atmospheric pressure
; Climatology
; Heat flux
; Heat losses
; Sea level
; Storms
; Offshore oil wells
; air temperature
; air-sea interaction
; anticyclone
; atmospheric circulation
; atmospheric convection
; cold air
; deep water formation
; evaporation
; intermediate water
; latent heat flux
; North Atlantic Oscillation
; relative humidity
; sea level pressure
; sensible heat flux
; water temperature
; Adriatic Sea
; Atlantic Ocean
; Cretan Sea
; Gulf of Lion
; Levantine Sea
; Mediterranean Sea
; North Sea
英文摘要: Atmospheric circulation patterns that are conducive to extreme ocean heat loss are investigated at four sites of special interest in the Mediterranean Sea. The Gulf of Lions, the South Adriatic Sea, the Cretan Sea, and the Levantine Sea are areas where anomalously high winter heat loss may lead to deep-or intermediate-water formation. At each of the above sites, the atmospheric circulation during such events is derived by averaging the sea level pressure (SLP) fields during the lower decile of the wintertime series of the net heat exchange.A relatively simple SLP pattern dominated by an anticyclone over northwestern Europe with a weaker cyclone to the southeast is found to be associated with strong heat loss in the selected sites with minor variations in pattern structure depending on the site. The SLP composite pattern reflects the combined effect of different atmospheric modes of variability and the authors consider the impacts on heat loss of a number of these modes (North Atlantic Oscillation, east Atlantic pattern, east Atlantic-west Russia pattern, and Scandinavian pattern), together with the North Sea-Caspian pattern and the Mediterranean index. The extremes in heat loss are strongly connected with the intensity and the positions of the poles of these patterns that modulate, through the necessary SLP gradient and associated northerlies, the transfer of cold and dry air over the areas of dense-water formation. Analysis of air-sea temperature difference, specific humidity, and evaporation anomalies indicates that the extremes of the net heat fluxes are primarily due to the latent and sensible heat flux components. © 2012 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52266
Appears in Collections: 气候变化事实与影响
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作者单位: Hellenic Center for Marine Research, Patras, Greece; National Oceanography Centre, Southampton, United Kingdom; Department of Physics, University of Ioannina, Ioannina, Greece; Météo-France (CNRM-GAME), Centre National de Recherches Météorologiques, Toulouse, France; IMEDEA (CSIC-UIB), Mallorca, Spain; Hellenic Center for Marine Research, Anavissos, Greece
Recommended Citation:
Papadopoulos V.P.,Josey S.A.,Bartzokas A.,et al. Large-scale atmospheric circulation favoring deep-and intermediate-water formation in the Mediterranean Sea[J]. Journal of Climate,2012-01-01,25(18)