Abstract:Based on the round-trip radiosonde data of Anqing, Changsha, Ganzhou, Nanchang, Yichang and Wuhan from June 2, 2018 to November 14, 2019, the turbulent layer thickness, logarithmic turbulent dissipation rate, Thorpe scale and buoyancy frequency are calculated by using Thorpe analysis method, and the probability, horizontal and vertical distribution characteristics are extracted. These radiosonde data have high observation accuracy, and the vertical resolution is about 6-10 meters, extending to about 30 kilometers, which can estimate the turbulence in the whole troposphere and lower stratosphere. Based on the turbulence feature extraction, this study carried out research and analysis, and compared the differences between different stations and the differences between the ascending and descending sections. The number of turbulent stratification in the troposphere is slightly more than that in the stratosphere, and the maximum turbulent layer thickness is also slightly larger. The number of turbulent stratification in the ascending section is slightly more than that in the descending section. The logarithmic turbulent dissipation rate has two modes, which decrease to both sides with the peak centers around - 35 and - 5 respectively. The troposphere is more concentrated in the peak center than the stratosphere, and the value of the peak center of the troposphere is slightly larger than that of the stratosphere, which indicates that the turbulence in the stratosphere is relatively weaker than that in the troposphere. From the horizontal and vertical distribution and configuration of logarithmic turbulence dissipation rate, Thorpe scale and buoyancy frequency, it can be seen that the turbulence intensity is higher at the position with larger Thorpe scale and lower buoyancy frequency.