DOI: 10.1029/2018JD028281
Scopus记录号: 2-s2.0-85052919917
论文题名: The Study of Inland Eyewall Reformation of Typhoon Fanapi (2010) Using Numerical Experiments and Vorticity Budget Analysis
作者: Yang M.-J. ; Wu Y.-C. ; Liou Y.-C.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2018
卷: 123, 期: 17 起始页码: 9604
结束页码: 9623
语种: 英语
英文关键词: bottom-up process
; eyewall reconstruction
; numerical experiments
; tropical cyclone
; vortical hot tower
; vorticity budget
英文摘要: Numerical simulations of Typhoon Fanapi (2010) interacting with the terrain of Taiwan are conducted using the Advanced Research Weather Research and Forecasting model (ARW, version 3.3.1) on a triply nested grid (with the finest grid size of 1 km and 55 vertical levels). Fanapi made landfall on eastern Taiwan at 0000 UTC 19 September and left Taiwan at 1200 UTC 19 September 2010, producing heavy rainfall and severe floods. After landfall, the Fanapi eyewall weakened and broke down over the Central Mountain Range. Vortical hot towers (VHTs) occurred along the Fanapi rainband, and the VHTs in land have weaker maximum updrafts (7.0–8.0 m/s), narrower diameter (7.0–11.5 km), and shallower depth (6.5–9.0 km), compared with oceanic VHTs over the Taiwan Strait. The VHTs over the Taiwan Strait remained organized along the rainband and propagated toward the southeast quadrant of the Fanapi circulation over land by the tangential flow. These organized VHTs in the southeast quadrant help transport cyclonic vorticity from lower into middle levels and then cooperate with the rich vorticity within the rainband by horizontal vorticity advection to rebuild the Fanapi eyewall upward from the bottom. The vorticity balance within the entire Fanapi circulation is largely dominated by its southeast quadrant with organized VHTs over Taiwan Island. In the simulation with no latent heat release, the VHTs quickly decay and radiate outward from the eyewall as gravity-wave perturbations. ©2018. The Authors. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113207
Appears in Collections: 气候减缓与适应
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作者单位: Department of Atmospheric Sciences, National Taiwan University, Taipei, Taiwan; Department of Atmospheric Sciences, National Central University, Chung-Li, Taiwan
Recommended Citation:
Yang M.-J.,Wu Y.-C.,Liou Y.-C.. The Study of Inland Eyewall Reformation of Typhoon Fanapi (2010) Using Numerical Experiments and Vorticity Budget Analysis[J]. Journal of Geophysical Research: Atmospheres,2018-01-01,123(17)