Extreme summer weather in northern mid-latitudes linked to a vanishing cryosphere
文献类型：SCI/SSCI论文
| 作者 | Tang Q. H. ; Zhang X. J. ; Francis J. A. |
| 发表日期 | 2014 |
| 关键词 | arctic sea-ice amplification climate intensification variability cover |
| 英文摘要 | The past decade has seen an exceptional number of unprecedented summer extreme weather events(1-4) in northern mid-latitudes, along with record declines in both summer Arctic sea ice(5,6) and snow cover on high-latitude land(7). The underlying mechanisms that link the shrinking cryosphere with summer extreme weather, however, remain unclear(8-12). Here, we combine satellite observations of early summer snow cover and summer sea-ice extent(13) with atmospheric reanalysis data(14) to demonstrate associations between summer weather patterns in mid-latitudes and losses of snow and sea ice. Results suggest that the atmospheric circulation responds differently to changes in the ice and snow extents, with a stronger response to sea-ice loss, even though its reduction is half as large as that for the snow cover. Atmospheric changes associated with the combined snow/ice reductions reveal widespread upper-level height increases, weaker upper-level zonal winds at high latitudes, a more amplified upper-level pattern, and a general northward shift in the jet stream. More frequent extreme summer heat events over mid-latitude continents are linked with reduced sea ice and snow through these circulation changes. |
| 出处 | Nature Climate Change |
| 卷 | 4 |
| 期 | 1 |
| 页 | 45-50 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 1758-678X |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/29591]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Tang Q. H.,Zhang X. J.,Francis J. A.. Extreme summer weather in northern mid-latitudes linked to a vanishing cryosphere. 2014. |
入库方式： OAI收割
来源：地理科学与资源研究所
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