Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1073/pnas.1719967115 |
Acceleration of tropical cyclogenesis by self-aggregation feedbacks | |
Muller, Caroline J.1; Romps, David M.2,3 | |
2018-03-20 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
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ISSN | 0027-8424 |
出版年 | 2018 |
卷号 | 115期号:12页码:2930-2935 |
文章类型 | Article |
语种 | 英语 |
国家 | France; USA |
英文摘要 | Idealized simulations of tropical moist convection have revealed that clouds can spontaneously clump together in a process called self-aggregation. This results in a state where a moist cloudy region with intense deep convection is surrounded by extremely dry subsiding air devoid of deep convection. Because of the idealized settings of the simulations where it was discovered, the relevance of self-aggregation to the real world is still debated. Here, we show that self-aggregation feedbacks play a leading-order role in the spontaneous genesis of tropical cyclones in cloud-resolving simulations. Those feedbacks accelerate the cyclogenesis process by a factor of 2, and the feedbacks contributing to the cyclone formation show qualitative and quantitative agreement with the self-aggregation process. Once the cyclone is formed, wind-induced surface heat exchange (WISHE) effects dominate, although we find that self-aggregation feedbacks have a small but nonnegligible contribution to the maintenance of the mature cyclone. Our results suggest that self-aggregation, and the framework developed for its study, can help shed more light into the physical processes leading to cyclogenesis and cyclone intensification. In particular, our results point out the importance of the longwave radiative cooling outside the cyclone. |
英文关键词 | tropical cyclones convective aggregation deep convection tropical cyclogenesis tropical cyclone intensification |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000427829500049 |
WOS关键词 | RADIATIVE-CONVECTIVE EQUILIBRIUM ; SIMULATIONS ; CYCLONES ; MODEL |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
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/204885 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Sorbonne Univ, Paris Sci & Lettres PSL Res Univ, Ecole Normale Super, CNRS,LMD,ISPL,Ecole Polytech, F-75005 Paris, France; 2.Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA; 3.Lawrence Berkeley Natl Lab, Climate & Ecosyst Sci Div, Berkeley, CA 94720 USA |
推荐引用方式 GB/T 7714 | Muller, Caroline J.,Romps, David M.. Acceleration of tropical cyclogenesis by self-aggregation feedbacks[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2018,115(12):2930-2935. |
APA | Muller, Caroline J.,&Romps, David M..(2018).Acceleration of tropical cyclogenesis by self-aggregation feedbacks.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,115(12),2930-2935. |
MLA | Muller, Caroline J.,et al."Acceleration of tropical cyclogenesis by self-aggregation feedbacks".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 115.12(2018):2930-2935. |
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