| DOI: | 10.1016/j.gloplacha.2014.03.003
|
| 论文题名: | Intensified warming of the Arctic: Causes and impacts on middle latitudes |
| 作者: | Walsh J.E.
|
| ISSN: | 0921-8481
|
| 出版年: | 2014
|
| 卷: | 117 | | 起始页码: | 52
|
| 结束页码: | 63
|
| 语种: | 英语
|
| 英文关键词: | Arctic warming
; Climate
; Climate impacts
; Polar amplification
; Sea ice
|
| Scopus关键词: | Greenhouse gases
; Meteorology
; Snow
; Upper atmosphere
; Arctic warming
; Atmospheric circulation
; Atmospheric water vapor
; Climate
; Climate impacts
; Ice and snow cover
; Natural variability
; Polar amplifications
; Sea ice
; air-sea interaction
; albedo
; atmospheric circulation
; global warming
; heat flux
; sea ice
; seasonal variation
; snow cover
; Arctic Ocean
|
| 英文摘要: | Over the past half century, the Arctic has warmed at about twice the global rate. The reduction of sea ice and snow cover has contributed to the high-latitude warming, as the maximum of the amplification during autumn is a fingerprint of the ice-albedo feedback. There is evidence that atmospheric water vapor, a greenhouse gas, has increased in the Arctic over the past several decades. Ocean heat fluxes into the Arctic from the North Atlantic and North Pacific have also contributed to the Arctic warming through a reduction of sea ice. Observational and modeling studies suggest that reduced sea ice cover and a warmer Arctic in autumn may affect the middle latitudes by weakening the west-to-east wind speeds in the upper atmosphere, by increasing the frequency of wintertime blocking events that in turn lead to persistence or slower propagation of anomalous temperatures in middle latitudes, and by increasing continental snow cover that can in turn influence the atmospheric circulation. While these effects on middle latitudes have been suggested by some analyses, natural variability has thus far precluded a conclusive demonstration of an impact of the Arctic on mid-latitude weather and climate. © 2014 Elsevier B.V. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84897944245&doi=10.1016%2fj.gloplacha.2014.03.003&partnerID=40&md5=f1bb2a6d88b5a14fcb074f1ea6dbd407
|
| Citation statistics: |
|
| 资源类型: | 期刊论文
|
| 标识符: | http://119.78.100.158/handle/2HF3EXSE/11387
|
| Appears in Collections: | 全球变化的国际研究计划
|
|
There are no files associated with this item.
|
|
作者单位: | International Arctic Research Center, University of Alaska, Fairbanks, AK, United States
|
| Recommended Citation: | |
Walsh J.E.. Intensified warming of the Arctic: Causes and impacts on middle latitudes[J],2014-01-01,117.
|
|
|