A Horizontal Turbulent Diffusion-Controlled Lower Bound of Tropical Cyclone Radius of Maximum Wind
编号：933
稿件编号：303 访问权限：仅限参会人
更新：2026-04-09 10:42:16 浏览：93次
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报告开始：2026年04月26日 14:35 （Asia/Shanghai）
报告时间：15min
所在会议：[S1-26] 专题1.26 台风观测、机理与预报 » [F6] 专题1.26 台风观测、机理与预报
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摘要
The radius of maximum wind (RMW) of a tropical cyclone (TC) plays a critical role in shaping the wind field and associated hazards. Observations report RMW values as small as 5 km,
yet the existence and magnitude of a physical lower bound remain unclear. Using an axisymmetric boundary-layer diagnostic model, we examine how small the RMW can become before the inner core becomes unstable and undergoes rapid expansion. A nondimensional parameter defined as the horizontal mixing length normalized by the RMW,
yet the existence and magnitude of a physical lower bound remain unclear. Using an axisymmetric boundary-layer diagnostic model, we examine how small the RMW can become before the inner core becomes unstable and undergoes rapid expansion. A nondimensional parameter defined as the horizontal mixing length normalized by the RMW,
关键字
Tropical Cyclone,Horizontal Turbulent Diffusion,Radius of Maximum Wind
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