DOI: 10.1175/JCLI-D-11-00466.1
Scopus记录号: 2-s2.0-84864397670
论文题名: Quantifying the influence of atlantic heat on barents sea ice variability and retreat
作者: Årthun M. ; Eldevik T. ; Smedsrud L.H. ; Skagseth Ø. ; Ingvaldsen R.B.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2012
卷: 25, 期: 13 起始页码: 4736
结束页码: 4743
语种: 英语
Scopus关键词: Annual variations
; Arctic
; Barents sea
; Heat transport
; Ice loss
; Ice-ocean models
; Interannual variability
; Interannual variation
; Model simulation
; Ocean heat
; Ocean model
; Open ocean
; Sea ice extent
; Trends
; Winter sea ices
; Advection
; Computer simulation
; Heat transfer
; Oceanography
; Sea ice
; advection
; annual variation
; arctic environment
; heat budget
; heat transfer
; sea ice
; Arctic Ocean
; Barents Sea
英文摘要: The recent Arctic winter sea ice retreat is most pronounced in the Barents Sea. Using available observations of the Atlantic inflow to the Barents Sea and results from a regional ice-ocean model the authors assess and quantify the role of inflowing heat anomalies on sea ice variability. The interannual variability and longerterm decrease in sea ice area reflect the variability of the Atlantic inflow, both in observations and model simulations. During the last decade (1998-2008) the reduction in annual (July-June) sea ice area was 218 × 10 3 km 2, or close to 50%. This reduction has occurred concurrent with an increase in observed Atlantic heat transport due to both strengthening and warming of the inflow. Modeled interannual variations in sea ice area between 1948 and 2007 are associated with anomalous heat transport (r = -0.63) with a 70 × 10 3 km 2 decrease per 10 TW input of heat. Based on the simulated ocean heat budget it is found that the heat transport into the western Barents Sea sets the boundary of the ice-free Atlantic domain and, hence, the sea ice extent. The regional heat content and heat loss to the atmosphere scale with the area of open ocean as a consequence. Recent sea ice loss is thus largely caused by an increasing "Atlantification" of the Barents Sea. © 2012 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52316
Appears in Collections: 气候变化事实与影响
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作者单位: Geophysical Institute, University of Bergen, Bjerknes Centre for Climate Research, Bergen, Norway; Uni Research AS, Bjerknes Centre for Climate Research, Bergen, Norway; Institute of Marine Research, Bjerknes Centre for Climate Research, Bergen, Norway
Recommended Citation:
Årthun M.,Eldevik T.,Smedsrud L.H.,et al. Quantifying the influence of atlantic heat on barents sea ice variability and retreat[J]. Journal of Climate,2012-01-01,25(13)