The Study on Mesoscale Characteristics of Typhoon Inner Core—a Survey

Since 1950’s instrumented aircraft has been used to investigate hurricanes, resulting in many studies of the inner core (eyewall) region. Most of the studies dealt with the structure and dynamics of the eyewall. Recent advances in aircraft instrumentation technology have allowed to study the cloud and mesoscale structure of the mature hurricane in detail. Especially, the evolution of concentric double–eye typhoons has been greatly analyzed and discussed. Numerical simulation on the hurricane eyewall has also made encouraging progress.The paper is to introduce and compare some main observation and research results above mentioned. Meanwhile, the features of hurricane inner core are physically discussed