Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL082092 |
Circling in on Convective Organization | |
Haerter, Jan O.1; Boing, Steven J.2; Henneberg, Olga1; Nissen, Silas Boye1 | |
2019-06-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:12页码:7024-7034 |
文章类型 | Article |
语种 | 英语 |
国家 | Denmark; England |
英文摘要 | Cold pools (CPs) contribute to convective organization. However, it is unclear by which mechanisms organization occurs. By using a particle method to track CP gust fronts in large eddy simulations, we characterize the basic collision modes between CPs. Our results show that CP interactions, where three expanding gust fronts force an updraft, are key at triggering new convection. Using this, we conceptualize CP dynamics into a parameter-free mathematical model: circles expand from initially random points in space. Where two expanding circles collide, a stationary front is formed. However, where three expanding circles enclose a single point, a new expanding circle is seeded. This simple model supports three fundamental features of CP dynamics: precipitation cells constitute a spatially interacting system, CPs come in generations, and scales steadily increase throughout the diurnal cycle. Finally, this model provides a framework for how CPs act to cause convective self-organization, clustering, and extremes. |
英文关键词 | self-organization cold pools convection extreme precipitation diurnal cycle |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000477616300096 |
WOS关键词 | COLD POOLS ; PRECIPITATION ; PARAMETERIZATION ; SIMULATION ; INTENSIFICATION ; AGGREGATION ; EXTREMES ; RAINFALL ; INCREASE ; MODEL |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/184295 |
专题 | 气候变化 |
作者单位 | 1.Univ Copenhagen, Niels Bohr Inst, Copenhagen, Denmark; 2.Univ Leeds, Sch Earth & Environm, Leeds, W Yorkshire, England |
推荐引用方式 GB/T 7714 | Haerter, Jan O.,Boing, Steven J.,Henneberg, Olga,et al. Circling in on Convective Organization[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(12):7024-7034. |
APA | Haerter, Jan O.,Boing, Steven J.,Henneberg, Olga,&Nissen, Silas Boye.(2019).Circling in on Convective Organization.GEOPHYSICAL RESEARCH LETTERS,46(12),7024-7034. |
MLA | Haerter, Jan O.,et al."Circling in on Convective Organization".GEOPHYSICAL RESEARCH LETTERS 46.12(2019):7024-7034. |
条目包含的文件 | 条目无相关文件。 |
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