Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL091603 |
Future changes in Northern Hemisphere summer weather persistence linked to projected Arctic warming. | |
Kai Kornhuber; Talia Tamarin‐; Brodsky | |
2021-01-14 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | Understanding the response of the large‐scale atmospheric circulation to climatic change remains a key challenge. Specifically, changes in the equator‐to‐pole temperature difference have been suggested to affect the mid‐latitudes, potentially leading to more persistent extreme weather, but a scientific consensus has not been established so far. Here we quantify summer weather persistence by applying a tracking algorithm to lower tropospheric vorticity and temperature fields to analyze changes in their propagation speeds. We find significant links between slower propagating weather systems and a weaker equator‐to‐pole temperature difference in observations and models. By end of the century, the propagation of temperature anomalies over mid‐latitude land is projected to decrease by ‐3%, regionally strongest in southern North America (‐45%) under a high emission scenario (CMIP5 RCP8.5). Even higher decreases are found (‐10%, ‐58%) in models which project a decreasing equator‐to‐pole temperature difference. Our findings provide evidence that hot summer weather might become longer‐lasting, bearing the risk of more persistent heat extremes. |
领域 | 气候变化 |
URL | 查看原文 |
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/311305 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Kai Kornhuber,Talia Tamarin‐,Brodsky. Future changes in Northern Hemisphere summer weather persistence linked to projected Arctic warming.[J]. Geophysical Research Letters,2021. |
APA | Kai Kornhuber,Talia Tamarin‐,&Brodsky.(2021).Future changes in Northern Hemisphere summer weather persistence linked to projected Arctic warming..Geophysical Research Letters. |
MLA | Kai Kornhuber,et al."Future changes in Northern Hemisphere summer weather persistence linked to projected Arctic warming.".Geophysical Research Letters (2021). |
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