2020年04号台风特征分析
Analysis of a Case of No. 04 Typhoon Hagupit in 2020

利用2020年7月28日至8月8日的中国测站资料、日本气象厅的台风资料以及NCEP/NCAR (National Centers for Environmental Prediction/National Center for Atmospheric Research)提供的1？ × 1？的再析资料，对台风路径、台风导致的降水过程的降水时空分布、台风登陆前后的环流形势、强降水相关的物理量进行分析。结果表面：1) “黑格比”自生成以来路径较为稳定、台风强度的发展变化较快；2) 台风导致的降水具有明显的区域性，降水中心随着台风中心的移动而移动，并且在台风生成期间有良好的热力条件；3) 台风的强降水过程形成的原因主要是由于登陆时台风的本体云系影响所产生；4) 强降水中心的降水量与垂直上升运动速度的最大值有一定关联性，位置也相匹配。总体而言，对台风进行特征分析有利于更好地应对台风天气所带来的灾害，更准确地对台风信息进行预报。
Based on the typhoon data of China from July 28 to August 8, 2020, the typhoon data of Japan Meteorological Agency and the 1？ × 1？ reanalysis data provided by NCEP/NCAR, the typhoon path, the spatial and temporal distribution of the precipitation process caused by the typhoon, the circulation situation before and after the typhoon landfall, and the physical quantities related to heavy rainfall are analyzed. The results are as follows: 1) Hagupit’s path is relatively stable and typhoon intensity develops and changes rapidly since its formation; 2) The precipitation caused by typhoon has obviously regional characteristics. The precipitation center moves with the movement of the typhoon center, and there are good thermal conditions during the generation of typhoon; 3) The formation of the heavy precipitation process of typhoon is mainly caused by the influence of the main cloud system of typhoon when it lands; 4) There is a certain correlation between the precipitation of heavy precipitation center and the maximum value of vertical ascending motion velocity, and the location is also matched. In general, the characteristic analysis of typhoon is beneficial to better deal with the disasters brought by typhoon weather and forecast the typhoon information more accurately.