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| DOI | 10.1038/s41467-021-27111-z |
| The role of cyclonic activity in tropical temperature-rainfall scaling | |
| Traxl D.; Boers N.; Rheinwalt A.; Bookhagen B. | |
| 发表日期 | 2021 |
| ISSN | 2041-1723 |
| 卷号 | 12期号:1 |
| 英文摘要 | The attribution of changing intensity of rainfall extremes to global warming is a key challenge of climate research. From a thermodynamic perspective, via the Clausius-Clapeyron relationship, rainfall events are expected to become stronger due to the increased water-holding capacity of a warmer atmosphere. Here, we employ global, 1-hourly temperature and 3-hourly rainfall data to investigate the scaling between temperature and extreme rainfall. Although the Clausius-Clapeyron scaling of +7% rainfall intensity increase per degree warming roughly holds on a global average, we find very heterogeneous spatial patterns. Over tropical oceans, we reveal areas with consistently strong negative scaling (below −40%∘C−1). We show that the negative scaling is due to a robust linear correlation between pre-rainfall cooling of near-surface air temperature and extreme rainfall intensity. We explain this correlation by atmospheric and oceanic dynamics associated with cyclonic activity. Our results emphasize that thermodynamic arguments alone are not enough to attribute changing rainfall extremes to global warming. Circulation dynamics must also be thoroughly considered. © 2021, The Author(s). |
| 语种 | 英语 |
| scopus关键词 | air temperature; drought; global warming; precipitation intensity; rainfall; tropical environment |
| 来源期刊 | Nature Communications
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/250573 |
| 作者单位 | Institute of Earth and Environmental Science, University of Potsdam, Potsdam, Germany; Potsdam Institute for Climate Impact Research, Potsdam, Germany; Technical University of Munich, School of Engineering & Design, Earth System Modelling, Munich, Germany; Global Systems Institute and Department of Mathematics, University of Exeter, Exeter, United Kingdom |
| 推荐引用方式 GB/T 7714 | Traxl D.,Boers N.,Rheinwalt A.,et al. The role of cyclonic activity in tropical temperature-rainfall scaling[J],2021,12(1). |
| APA | Traxl D.,Boers N.,Rheinwalt A.,&Bookhagen B..(2021).The role of cyclonic activity in tropical temperature-rainfall scaling.Nature Communications,12(1). |
| MLA | Traxl D.,et al."The role of cyclonic activity in tropical temperature-rainfall scaling".Nature Communications 12.1(2021). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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