DOI: 10.1175/JCLI-D-13-00371.1
Scopus记录号: 2-s2.0-84896923766
论文题名: A model-based decomposition of the sea ice-atmosphere feedback over the barents sea during winter
作者: Liptak J. ; Strong C.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2014
卷: 27, 期: 7 起始页码: 2533
结束页码: 2544
语种: 英语
Scopus关键词: Decomposition
; Experiments
; Sea ice
; Barents sea
; Boundary forcing
; Dynamical effects
; Enhanced surface
; Initial conditions
; Model framework
; Model-based decomposition
; Sea ice concentration
; Feedback
; air temperature
; atmosphere-ice-ocean system
; atmospheric forcing
; climate feedback
; longwave radiation
; sea ice
; wind stress
; Arctic Ocean
; Barents Sea
英文摘要: The feedback between Barents Sea ice and the winter atmosphere was studied in a modeling framework by decomposing it into two sequential boundary forcing experiments. The Community Ice Code (CICE) model was initialized with anomalously high sea ice concentration (SIC) over the Barents Sea and forced with an atmosphere produced by positive SIC anomalies, and CICE was initialized with low Barents Sea SIC and forced with an atmosphere produced by negative SIC anomalies. Corresponding control runs were produced by exposing the same SIC initial conditions to climatological atmospheres, and the monthly mean sea ice response showed a positive feedback over the Barents Sea for both experiments: the atmosphere produced by positive SIC anomalies increased SIC over the Barents Sea during the winter, and the atmosphere produced by negative SIC anomalies decreased SIC. These positive feedbacks were driven primarily by thermodynamic forcing from surface longwave flux anomalies and were weakened somewhat by atmospheric temperature advection. Dynamical effects also opposed the positive feedback, with enhanced surface wind stress divergence over the Barents Sea in the high-SIC case and enhanced convergence in the low-SIC case. © 2014 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51276
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Atmospheric Sciences, University of Utah, Salt Lake City, UT, United States
Recommended Citation:
Liptak J.,Strong C.. A model-based decomposition of the sea ice-atmosphere feedback over the barents sea during winter[J]. Journal of Climate,2014-01-01,27(7)