热带气旋发展增强过程中龙卷尺度涡旋活动特征
周玥滢, 方娟

Characteristics of tornado⁃scale vortices in an intensifying tropical cyclone
Yueying Zhou, Juan Fang
图3 Earl发展增强过程中TSV数目随时间的变化
The red and blue lines indicate the number of TSVs obtained using identification conditions with vertical velocities greater than 15 and 20 m·s-1,respectively.
Fig.3 Variation of the number of TSVs over time during Earl's developmental enhancement