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DOI | 10.1175/JAS-D-19-0076.1 |
Revisiting the Dynamics of Eyewall Contraction of Tropical Cyclones | |
Li, Yuanlong1,2,3,4; Wang, Yuqing3,4,5; Lin, Yanluan1,2 | |
2019-10-01 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES
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ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2019 |
卷号 | 76期号:10页码:3229-3245 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | The dynamics of eyewall contraction of tropical cyclones (TCs) has been revisited in this study based on both three-dimensional and axisymmetric simulations and dynamical diagnostics. Because eyewall contraction is closely related to the contraction of the radius of maximum wind (RMW), its dynamics is thus often studied by examining the RMW tendency in previous studies. Recently, Kieu and Stern et al. proposed two different frameworks to diagnose the RMW tendency but had different conclusions. In this study, the two frameworks are evaluated first based on theoretical analysis and idealized numerical simulations. It is shown that the framework of Kieu is a special case of the earlier framework of Willoughby et al. if the directional derivative is applied. An extension of Stern et al.'s approach not only can reproduce but also can predict the RMW tendency. A budget of the azimuthal-mean tangential wind tendency indicates that the contributions by radial and vertical advections to the RMW tendency vary with height. Namely, radial advection dominates the RMW contraction in the lower boundary layer, and vertical advection favors the RMW contraction in the upper boundary layer and lower troposphere. In addition to the curvature, the increase of the radial gradient of horizontal mixing (including the resolved eddy mixing in three dimensions) near the eyewall prohibits eyewall contraction in the lower boundary layer. Besides, the vertical mixing including surface friction also plays an important role in the cessation of eyewall contraction in the lower boundary layer. |
英文关键词 | Dynamics Tropical cyclones |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000488764600001 |
WOS关键词 | INNER-CORE SIZE ; MAXIMUM INTENSITY ; MODEL ; INTENSIFICATION ; PRECIPITATION ; MICROPHYSICS ; SENSITIVITY ; SIMULATION ; IMPACT ; RADIUS |
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/187472 |
专题 | 地球科学 |
作者单位 | 1.Tsinghua Univ, Minist Educ, Key Lab Earth Syst Modeling, Dept Earth Syst Sci, Beijing, Peoples R China; 2.Tsinghua Univ, Joint Ctr Global Change Studies, Beijing, Peoples R China; 3.Univ Hawaii Manoa, Int Pacific Res Ctr, Honolulu, HI 96822 USA; 4.Univ Hawaii Manoa, Sch Ocean & Earth Sci & Technol, Dept Atmospher Sci, Honolulu, HI 96822 USA; 5.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, China Meteorol Adm, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Li, Yuanlong,Wang, Yuqing,Lin, Yanluan. Revisiting the Dynamics of Eyewall Contraction of Tropical Cyclones[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2019,76(10):3229-3245. |
APA | Li, Yuanlong,Wang, Yuqing,&Lin, Yanluan.(2019).Revisiting the Dynamics of Eyewall Contraction of Tropical Cyclones.JOURNAL OF THE ATMOSPHERIC SCIENCES,76(10),3229-3245. |
MLA | Li, Yuanlong,et al."Revisiting the Dynamics of Eyewall Contraction of Tropical Cyclones".JOURNAL OF THE ATMOSPHERIC SCIENCES 76.10(2019):3229-3245. |
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