DOI: 10.1007/s00382-011-1142-x
Scopus记录号: 2-s2.0-84859002194
论文题名: Greening in the circumpolar high-latitude may amplify warming in the growing season
作者: Jeong J.-H. ; Kug J.-S. ; Kim B.-M. ; Min S.-K. ; Linderholm H.W. ; Ho C.-H. ; Rayner D. ; Chen D. ; Jun S.-Y.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2012
卷: 38, 期: 2017-07-08 起始页码: 1421
结束页码: 1431
语种: 英语
英文关键词: Arctic greening
; Arctic warming
; Atmospheric circulation
; Climate model
; Future climate
; Surface energy budget
; Vegetation
英文摘要: We present a study that suggests greening in the circumpolar high-latitude regions amplifies surface warming in the growing season (May-September) under enhanced greenhouse conditions. The investigation used a series of climate simulations with the Community Atmospheric Model version 3-which incorporates a coupled, dynamic global vegetation model-with and without vegetation feedback, under both present and doubled CO2 concentrations. Results indicate that climate warming and associated changes promote circumpolar greening with northward expansion and enhanced greenness of both the Arctic tundra and boreal forest regions. This leads to additional surface warming in the high-latitudes in the growing season, primarily through more absorption of incoming solar radiation. The resulting surface and tropospheric warming in the high-latitude and Arctic regions weakens prevailing tropospheric westerlies over 45-70N, leading to the formation of anticyclonic pressure anomalies in the Arctic regions. These pressure anomalies resemble the anomalous circulation pattern during the negative phase of winter Arctic Oscillation. It is suggested that these circulation anomalies reinforce the high-latitude and Arctic warming in the growing season. © 2011 Springer-Verlag. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/55342
Appears in Collections: 过去全球变化的重建
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作者单位: Department of Earth Sciences, University of Gothenburg, Gothenburg, Sweden; Korea Ocean Research and Development Institute, Ansan, South Korea; Korea Polar Research Institute, Inchon, South Korea; Climate Research Division, Environment Canada, Toronto, Canada; School of Earth and Environmental Sciences, Seoul National University, Seoul, South Korea
Recommended Citation:
Jeong J.-H.,Kug J.-S.,Kim B.-M.,et al. Greening in the circumpolar high-latitude may amplify warming in the growing season[J]. Climate Dynamics,2012-01-01,38(2017-07-08)