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| DOI | 10.1038/s41558-022-01400-x |
| Precipitation efficiency constraint on climate change | |
| Li R.L.; Studholme J.H.P.; Fedorov A.V.; Storelvmo T. | |
| 发表日期 | 2022 |
| ISSN | 1758-678X |
| 起始页码 | 642 |
| 结束页码 | 648 |
| 卷号 | 12期号:7 |
| 英文摘要 | Precipitation efficiency (PE) relates cloud condensation to precipitation and intrinsically binds atmospheric circulation to the hydrological cycle. Due to PE’s inherent microphysical dependencies, definitions and estimates vary immensely. Consequently, PE’s sensitivity to greenhouse warming and implications for climate change are poorly understood. Here, we quantify PE’s role in climate change by defining a simple index ϵ as the ratio of surface precipitation to condensed water path. This macroscopic metric is reconcilable with microphysical PE measures and higher ϵ is associated with stronger mean Walker circulation. We further find that state-of-the-art climate models disagree on the sign and magnitude of future ϵ changes. This sign disagreement originates from models’ convective parameterizations. Critically, models with increasing ϵ under greenhouse warming, in line with cloud-resolving simulations, show greater slowdown of the large-scale Hadley and Walker circulations and a two-fold greater increase in extreme rainfall than models with decreasing ϵ. © 2022, The Author(s), under exclusive licence to Springer Nature Limited. |
| 语种 | 英语 |
| scopus关键词 | atmospheric circulation; climate change; condensation; precipitation (climatology) |
| 来源期刊 | Nature Climate Change
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/262115 |
| 作者单位 | Department of Earth and Planetary Sciences, Yale University, New Haven, CT, United States |
| 推荐引用方式 GB/T 7714 | Li R.L.； Studholme J.H.P.； Fedorov A.V.； Storelvmo T.. Precipitation efficiency constraint on climate change[J],2022,12(7). |
| APA | Li R.L.； Studholme J.H.P.； Fedorov A.V.； Storelvmo T..(2022).Precipitation efficiency constraint on climate change.Nature Climate Change,12(7). |
| MLA | Li R.L.； Studholme J.H.P.； Fedorov A.V.； Storelvmo T.."Precipitation efficiency constraint on climate change".Nature Climate Change 12.7(2022). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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