文章基本信息

标题：Evidence for a wavier jet stream in response to rapid Arctic warming
本地全文：下载
作者：Jennifer A Francis ; Stephen J Vavrus
期刊名称：Environmental Research Letters
印刷版ISSN：1748-9326
电子版ISSN：1748-9326
出版年度：2015
卷号：10
期号：1
页码：014005
DOI：10.1088/1748-9326/10/1/014005
语种：English
出版社：IOP Publishing Ltd
摘要：New metrics and evidence are presented that support a linkage between rapid Arctic warming, relative to Northern hemisphere mid-latitudes, and more frequent high-amplitude (wavy) jet-stream configurations that favor persistent weather patterns. We find robust relationships among seasonal and regional patterns of weaker poleward thickness gradients, weaker zonal upper-level winds, and a more meridional flow direction. These results suggest that as the Arctic continues to warm faster than elsewhere in response to rising greenhouse-gas concentrations, the frequency of extreme weather events caused by persistent jet-stream patterns will increase.