DOI: 10.1007/s00382-011-1095-0
Scopus记录号: 2-s2.0-84860316334
论文题名: Northern Alaskan land surface response to reduced Arctic sea ice extent
作者: Higgins M.E. ; Cassano J.J.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2012
卷: 38, 期: 2017-09-10 起始页码: 2099
结束页码: 2113
语种: 英语
英文关键词: Arctic
; Land surface
; Sea ice
; Snow
英文摘要: With Arctic sea ice extent at near-record lows, an improved understanding of the relationship between sea ice and the land surface is warranted. We examine the land surface response to changing sea ice by first conducting a simulation using the Community Atmospheric Model version 3. 1 with end of the twenty-first century sea ice extent. This future atmospheric response is then used to force the Weather and Research Forecasting Model version 3. 1 to examine the terrestrial land surface response at high resolution over the North Slope of Alaska. Similar control simulations with twentieth century sea ice projections are also performed, and in both simulations only sea ice extent is altered. In the future sea ice extent experiment, atmospheric temperature increases significantly due to increases in latent and sensible heat flux, particularly in the winter season. Precipitation and snow pack increase significantly, and the increased snow pack contributes to warmer soil temperatures for most seasons by insulating the land surface. In the summer, however, soil temperatures are reduced due to increased albedo. Despite warmer near-surface atmospheric temperatures, it is found that spring melt is delayed throughout much of the North Slope due to the increased snow pack, and the growing season length is shortened. © 2011 Springer-Verlag. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/55312
Appears in Collections: 过去全球变化的重建
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作者单位: Cooperative Institute for Research in Environmental Sciences, University of Colorado, 216 UCB, Boulder, CO 80309, United States; Cooperative Institute for Research in Environmental Sciences, Department of Atmospheric and Oceanic Sciences, University of Colorado, 216 UCB, Boulder, CO 80309, United States
Recommended Citation:
Higgins M.E.,Cassano J.J.. Northern Alaskan land surface response to reduced Arctic sea ice extent[J]. Climate Dynamics,2012-01-01,38(2017-09-10)