DOI: 10.1007/s00382-017-3583-3
Scopus记录号: 2-s2.0-85014084479
论文题名: Greenland coastal air temperatures linked to Baffin Bay and Greenland Sea ice conditions during autumn through regional blocking patterns
作者: Ballinger T.J. ; Hanna E. ; Hall R.J. ; Miller J. ; Ribergaard M.H. ; Høyer J.L.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2018
卷: 50, 期: 2018-01-02 起始页码: 83
结束页码: 100
语种: 英语
英文关键词: Arctic sea ice
; Greenland
; Greenland Blocking Index
; Sea surface temperature
; Surface air temperature
Scopus关键词: advection
; air temperature
; anticyclone
; atmosphere-ice-ocean system
; atmosphere-ocean coupling
; autumn
; coastal zone
; correlation
; meridional circulation
; sea ice
; sea surface temperature
; sensible heat flux
; Arctic
; Arctic Ocean
; Baffin Bay [Arctic Ocean]
; Greenland
; Greenland Sea
; Norwegian Sea
英文摘要: Variations in sea ice freeze onset and regional sea surface temperatures (SSTs) in Baffin Bay and Greenland Sea are linked to autumn surface air temperatures (SATs) around coastal Greenland through 500 hPa blocking patterns, 1979–2014. We find strong, statistically significant correlations between Baffin Bay freeze onset and SSTs and SATs across the western and southernmost coastal areas, while weaker and fewer significant correlations are found between eastern SATs, SSTs, and freeze periods observed in the neighboring Greenland Sea. Autumn Greenland Blocking Index values and the incidence of meridional circulation patterns have increased over the modern sea ice monitoring era. Increased anticyclonic blocking patterns promote poleward transport of warm air from lower latitudes and local warm air advection onshore from ocean–atmosphere sensible heat exchange through ice-free or thin ice-covered seas bordering the coastal stations. Temperature composites by years of extreme late freeze conditions, occurring since 2006 in Baffin Bay, reveal positive monthly SAT departures that often exceed 1 standard deviation from the 1981–2010 climate normal over coastal areas that exhibit a similar spatial pattern as the peak correlations. © 2017, Springer-Verlag Berlin Heidelberg. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109510
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: Department of Geography, Texas State University, 601 University Drive, San Marcos, TX 78666, United States; School of Geography, University of Lincoln, Lincoln, United Kingdom; Department of Geography, University of Sheffield, Sheffield, United Kingdom; Cryospheric Sciences Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD, United States; Wyle, Inc., Houston, TX, United States; Danish Meteorological Institute, Copenhagen, Denmark
Recommended Citation:
Ballinger T.J.,Hanna E.,Hall R.J.,et al. Greenland coastal air temperatures linked to Baffin Bay and Greenland Sea ice conditions during autumn through regional blocking patterns[J]. Climate Dynamics,2018-01-01,50(2018-01-02)