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DOI | 10.1038/s41561-017-0001-8 |
Enhanced poleward propagation of storms under climate change | |
Tamarin-Brodsky, Talia; Kaspi, Yohai | |
2017-12-01 | |
发表期刊 | NATURE GEOSCIENCE |
ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2017 |
卷号 | 10期号:12 |
文章类型 | Article |
语种 | 英语 |
国家 | Israel |
英文摘要 | Earth's midlatitudes are dominated by regions of large atmospheric weather variability-often referred to as storm tracks-which influence the distribution of temperature, precipitation and wind in the extratropics. Comprehensive climate models forced by increased greenhouse gas emissions suggest that under global warming the storm tracks shift poleward. While the poleward shift is a robust response across most models, there is currently no consensus on what the underlying dynamical mechanism is. Here we present a new perspective on the poleward shift, which is based on a Lagrangian view of the storm tracks. We show that in addition to a poleward shift in the genesis latitude of the storms, associated with the shift in baroclinicity, the latitudinal displacement of cyclonic storms increases under global warming. This is achieved by applying a storm-tracking algorithm to an ensemble of CMIP5 models. The increased latitudinal propagation in a warmer climate is shown to be a result of stronger upper-level winds and increased atmospheric water vapour. These changes in the propagation characteristics of the storms can have a significant impact on midlatitude climate. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000416858000011 |
WOS关键词 | EXTRATROPICAL CYCLONES ; TRACK SHIFTS ; SST |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/35100 |
专题 | 地球科学 气候变化 |
作者单位 | Weizmann Inst Sci, Dept Earth & Planetary Sci, IL-76100 Rehovot, Israel |
推荐引用方式 GB/T 7714 | Tamarin-Brodsky, Talia,Kaspi, Yohai. Enhanced poleward propagation of storms under climate change[J]. NATURE GEOSCIENCE,2017,10(12). |
APA | Tamarin-Brodsky, Talia,&Kaspi, Yohai.(2017).Enhanced poleward propagation of storms under climate change.NATURE GEOSCIENCE,10(12). |
MLA | Tamarin-Brodsky, Talia,et al."Enhanced poleward propagation of storms under climate change".NATURE GEOSCIENCE 10.12(2017). |
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