Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JAS-D-16-0322.1 |
Secondary Eyewall Formation in Tropical Cyclones by Outflow-Jet Interaction | |
Dai, Yi; Majumdar, Sharanya J.; Nolan, David S. | |
2017-06-01 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES
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ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2017 |
卷号 | 74期号:6 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | This study uses idealized numerical simulations to show that the interaction between tropical cyclones and a midlatitude jet can result in secondary eyewall formation. It is argued that the eddy activity by the outflow-jet interaction can enhance the upper-level outflow, thereby creating an asymmetric stratiform region outside of the primary eyewall. Numerous long-lasting deep convective cells are able to form in the stratiform cloud, creating forcing necessary for the secondary eyewall. The low-level inflow and the TC's primary circulation advect the deep convective cells inward and cyclonically. The secondary eyewall forms after the deep convection has surrounded the TC. In contrast, numerical simulations without the jet do not show secondary eyewall formation. For moderately strong jets of wind speed 15-30 m s(-1), there is little sensitivity to the jet strength. There is sensitivity to the distance between the jet and the TC, with secondary eyewall formation evident when their separation is 15 degrees latitude but not when the separation exceeds 20 degrees. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000403101200015 |
WOS关键词 | ANGULAR-MOMENTUM FLUXES ; VORTEX ROSSBY-WAVES ; HURRICANE INTENSITY ; EXTERNAL INFLUENCES ; SPIRAL RAINBANDS ; WIND-FIELD ; ROLES ; REPLACEMENT ; SIMULATION ; DYNAMICS |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
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/29593 |
专题 | 地球科学 |
作者单位 | Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, 4600 Rickenbacker Causeway, Miami, FL 33149 USA |
推荐引用方式 GB/T 7714 | Dai, Yi,Majumdar, Sharanya J.,Nolan, David S.. Secondary Eyewall Formation in Tropical Cyclones by Outflow-Jet Interaction[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2017,74(6). |
APA | Dai, Yi,Majumdar, Sharanya J.,&Nolan, David S..(2017).Secondary Eyewall Formation in Tropical Cyclones by Outflow-Jet Interaction.JOURNAL OF THE ATMOSPHERIC SCIENCES,74(6). |
MLA | Dai, Yi,et al."Secondary Eyewall Formation in Tropical Cyclones by Outflow-Jet Interaction".JOURNAL OF THE ATMOSPHERIC SCIENCES 74.6(2017). |
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