Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019JD030635 |
Identifying Key Driving Processes of Major Recent Heat Waves | |
Wehrli, Kathrin1; Guillod, Benoit P.1,2; Hauser, Mathias1; Leclair, Matthieu1; Seneviratne, Sonia, I1 | |
2019-11-19 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:22页码:11746-11765 |
文章类型 | Article |
语种 | 英语 |
国家 | Switzerland |
英文摘要 | Heat waves lead to major impacts on human health, food production, and ecosystems. To assess their predictability and how they are projected to change under global warming, it is crucial to improve our understanding of the underlying processes affecting their occurrence and intensity under present-day climate conditions. Beside greenhouse gas forcing, processes in the different components of the climate system-in particular the land surface, atmospheric circulation, and the oceans-may play a key role in changing the odds for a particular event. This study aims to identify the role of the individual drivers for five heat waves (and, in some cases, of concurrent droughts) in the recent decade. Simulations are performed with the Community Earth System Model using nudging of horizontal atmospheric circulation and prescription of soil moisture. The fully constrained model accurately reproduces how anomalous an event was. Factorial experiments, which force the model toward observations for one or several key components at a time, allow us to identify how much of the observed temperature anomaly of each event can be attributed to each driver. Considering all analyzed events, atmospheric circulation and soil moisture play similarly important roles, each contributing between 20% and 70% to the events' anomalies. This highlights that the role of thermodynamics can be just as important as that of the dynamics for temperature extremes, a possibly underestimated feature. In addition, recent climate change amplified the events and contributed between 10% and 40% of the events' anomalies. |
英文关键词 | heat waves extreme events global climate models atmospheric nudging soil moisture prescription |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000497179800001 |
WOS关键词 | EARTH SYSTEM MODEL ; SOIL-MOISTURE ; ATMOSPHERE INTERACTIONS ; CLIMATE-CHANGE ; TEMPERATURE ; PRECIPITATION ; SUMMER ; DROUGHT ; IMPACT ; FRAMEWORK |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
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/225790 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Swiss Fed Inst Technol, Dept Environm Syst Sci, Inst Atmospher & Climate Sci, Zurich, Switzerland; 2.Swiss Fed Inst Technol, Inst Environm Decis, Dept Environm Syst Sci, Zurich, Switzerland |
推荐引用方式 GB/T 7714 | Wehrli, Kathrin,Guillod, Benoit P.,Hauser, Mathias,et al. Identifying Key Driving Processes of Major Recent Heat Waves[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(22):11746-11765. |
APA | Wehrli, Kathrin,Guillod, Benoit P.,Hauser, Mathias,Leclair, Matthieu,&Seneviratne, Sonia, I.(2019).Identifying Key Driving Processes of Major Recent Heat Waves.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(22),11746-11765. |
MLA | Wehrli, Kathrin,et al."Identifying Key Driving Processes of Major Recent Heat Waves".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.22(2019):11746-11765. |
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