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DOI | 10.1175/JAS-D-19-0017.1 |
Evolution of the Warm-Core Structure during the Eyewall Replacement Cycle in a Numerically Simulated Tropical Cyclone | |
Wang, Hui1; Wang, Yuqing1,2,3; Xu, Jing1; Duan, Yihong1 | |
2019-08-01 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES |
ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2019 |
卷号 | 76期号:8页码:2559-2573 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | This study examines the evolution of the warm-core structure during the secondary eyewall formation (SEF) and the subsequent eyewall replacement cycle (ERC) in a numerically simulated tropical cyclone (TC) under idealized conditions. Results show that prior to the SEF, the TC exhibited a double warm-core structure centered in the middle and upper troposphere in the eye region, and as the storm intensified with a rapid outward expansion of tangential winds, the warm core strengthened and a secondary off-center warm ring developed between 8- and 16-km heights near the outer edge of the eye. During the SEF, both the upper-level warm core and the secondary off-center warm ring rapidly strengthened. As the secondary eyewall intensified and contracted and the primary eyewall weakened and dissipated, the off-center warm ring extended inward and merged with the inner warm core to form a warm core typical of a single-eyewall TC. Results from the azimuthal-mean potential temperature budget indicate that the warming in the eye is due to subsidence and the warming above 14-km height outside the eye is largely contributed by radial warm advection in the outflow. The development of the off-center warm ring is largely due to the subsidence warming near the inner edge of the primary eyewall and in the moat area and the warming by diabatic heating in the upper part of the inner eyewall below 14-km height. Further analysis indicates that the eddy advection also played some role in the warming above 12-km height in the upper troposphere. |
英文关键词 | Dynamics Tropical cyclones Numerical analysis modeling |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000477989200003 |
WOS关键词 | SECONDARY EYEWALL ; INERTIAL STABILITY ; SPIRAL RAINBANDS ; BUDGET ANALYSIS ; HURRICANE RITA ; PART I ; DYNAMICS ; EYE ; ROLES ; INTENSIFICATION |
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/185760 |
专题 | 地球科学 |
作者单位 | 1.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing, Peoples R China; 2.Univ Hawaii Manoa, Int Pacific Res Ctr, Honolulu, HI 96822 USA; 3.Univ Hawaii Manoa, Dept Atmospher Sci, Honolulu, HI 96822 USA |
推荐引用方式 GB/T 7714 | Wang, Hui,Wang, Yuqing,Xu, Jing,et al. Evolution of the Warm-Core Structure during the Eyewall Replacement Cycle in a Numerically Simulated Tropical Cyclone[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2019,76(8):2559-2573. |
APA | Wang, Hui,Wang, Yuqing,Xu, Jing,&Duan, Yihong.(2019).Evolution of the Warm-Core Structure during the Eyewall Replacement Cycle in a Numerically Simulated Tropical Cyclone.JOURNAL OF THE ATMOSPHERIC SCIENCES,76(8),2559-2573. |
MLA | Wang, Hui,et al."Evolution of the Warm-Core Structure during the Eyewall Replacement Cycle in a Numerically Simulated Tropical Cyclone".JOURNAL OF THE ATMOSPHERIC SCIENCES 76.8(2019):2559-2573. |
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