| 摘要 |
Based on high-altitude and ground observation data and physical quantity field data, the diagnostic analysis of a heavy rainfall weather process in Hulunbuir City from July 18 to 20, 2025 was conducted from the aspects of circulation patterns, influencing systems, dynamic conditions, moisture conditions and convective conditions, and the causes of the occurrence and development of this process were revealed. The study shows that the superposition of the upper-level trough, the ground cyclone, and the low-level jet stream formed strong water vapor transport, strong warm advection, and strong dynamic uplift in Hulunbuir, thereby leading to this heavy rainfall event. The forecasting ideas for short-term heavy rainfall were pointed out to provide certain scientific references for future forecasting and prediction work. |
