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| DOI | 10.1029/2020GL091025 |
| Does Lower-Stratospheric Shear Influence the Mesoscale Organization of Convection? | |
| Lane T.P. | |
| 发表日期 | 2021 |
| ISSN | 0094-8276 |
| 卷号 | 48期号:3 |
| 英文摘要 | Organized mesoscale convection is important for many atmospheric phenomena and hazards, however the understanding of its governing mechanisms is incomplete. Theories explaining mesoscale organization rely on the interaction between convection outflows and lower-tropospheric wind shear. Here a new mechanism is presented, where lower-stratospheric wind shear is shown to influence mesoscale organization. The mechanism is linked to coupling between convection and gravity waves, with the stratosphere playing a role in shaping the tropospheric wave spectrum. The key result is that lower-stratospheric shear creates a preference for organized systems propagating in the same direction as the shear vector by weakening the systems propagating in the opposite direction to the shear. This result has important implications for stratosphere-troposphere interactions, numerical modeling, and understanding of convective organization in general. © 2021. American Geophysical Union. All Rights Reserved. |
| 英文关键词 | Earth sciences; Geophysics; Atmospheric phenomena; Mesoscale; New mechanisms; Stratospheric winds; Tropospheric waves; Tropospheric winds; Troposphere |
| 语种 | 英语 |
| 来源期刊 | Geophysical Research Letters
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/169152 |
| 作者单位 | School of Earth Sciences and ARC Centre of Excellence for Climate Extremes, The University of Melbourne, Melbourne, VIC, Australia |
| 推荐引用方式 GB/T 7714 | Lane T.P.. Does Lower-Stratospheric Shear Influence the Mesoscale Organization of Convection?[J],2021,48(3). |
| APA | Lane T.P..(2021).Does Lower-Stratospheric Shear Influence the Mesoscale Organization of Convection?.Geophysical Research Letters,48(3). |
| MLA | Lane T.P.."Does Lower-Stratospheric Shear Influence the Mesoscale Organization of Convection?".Geophysical Research Letters 48.3(2021). |
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