| DOI: | 10.1002/2015GL063203
|
| 论文题名: | Impacts of Arctic sea ice and continental snow cover changes on atmospheric winter teleconnections |
| 作者: | Handorf D.; Jaiser R.; Dethloff K.; Rinke A.; Cohen J.
|
| 刊名: | Geophysical Research Letters
|
| ISSN: | 0094-8780
|
| EISSN: | 1944-8511
|
| 出版年: | 2015
|
| 卷: | 42, 期:7 | | 起始页码: | 2367
|
| 结束页码: | 2377
|
| 语种: | 英语
|
| 英文关键词: | cold Eurasian winters
; planetary wave activity
; polar midlatitude linkages
|
| Scopus关键词: | Earth atmosphere
; Sea ice
; Snow
; Upper atmosphere
; Wave propagation
; Arctic ocean sea ices
; Atmospheric general circulation models
; Atmospheric teleconnections
; Cold Eurasian winters
; Midlatitudes
; Northern Hemispheres
; Planetary wave activity
; Troposphere-stratosphere system
; Ice
; general circulation model
; high pressure system
; Northern Hemisphere
; planetary wave
; sea ice
; snow cover
; teleconnection
; wave propagation
; Arctic Ocean
|
| 英文摘要: | Extreme winters in Northern Hemisphere midlatitudes in recent years have been connected to declining Arctic sea ice and continental snow cover changes in autumn following modified planetary waves in the coupled troposphere-stratosphere system. Through analyses of reanalysis data and model simulations with a state-of-the-art atmospheric general circulation model, we investigate the mechanisms between Arctic Ocean sea ice and Northern Hemisphere land snow cover changes in autumn and atmospheric teleconnections in the following winter. The observed negative Arctic Oscillation in response to sea ice cover changes is too weakly reproduced by the model. The planetary wave train structures over the Pacific and North America regions are well simulated. The strengthening and westward shift of the Siberian high-pressure system in response to sea ice and snow cover changes is underestimated compared to ERA-Interim data due to deficits in the simulated changes in planetary wave propagation characteristics. ©2015. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84928704837&doi=10.1002%2f2015GL063203&partnerID=40&md5=4e56233fb6438c1e31c6d2803bc43c85
|
| Citation statistics: |
|
| 资源类型: | 期刊论文
|
| 标识符: | http://119.78.100.158/handle/2HF3EXSE/8396
|
| Appears in Collections: | 科学计划与规划
气候变化与战略
|
|
There are no files associated with this item.
|
|
作者单位: | Alfred Wegener Institute Helmholtz Center for Polar and Marine Research, Research Unit Potsdam, Potsdam, Germany
|
| Recommended Citation: | |
Handorf D.,Jaiser R.,Dethloff K.,et al. Impacts of Arctic sea ice and continental snow cover changes on atmospheric winter teleconnections[J]. Geophysical Research Letters,2015-01-01,42(7).
|
|
|