片语
inner eyewall球内壁
outer eyewall球外壁
Double Eyewall重眼壁
Eyewall replacement眼墻替换
eyewall replacement cycleEyewall replacement cycles, also called concentric eyewall cycles, naturally occur in intense tropical cyclones, generally with winds greater than 185?km/h (115?mph), or major hurricanes (Category 3 or above). When tropical cyclones reach this intensity, and the eyewall contracts or is already sufficiently small, some of the outer rainbands may strengthen and organize into a ring of thunderstorms—an outer eyewall—that slowly moves inward and robs the inner eyewall of its needed moisture and angular momentum.
concentric eyewall structure同心双眼壁结构
eyewall cycles眼墻取代过程
Sky Inside the Eyewall蓝天白云