Fine-scale characteristics of summer precipitation over Cang Mountain

Abstract Fine-scale characteristics of summer precipitation over Cang Mountain, a long and narrow mountain with quasi-north-south orientation in Southwest China, are studied based on station radar data. Three kinds rainfall processes classified according to the initial stations regional events (RREs) by utilizing minute-scale rain gauge RREs initiating western part Mountain exhibit eastward evolution tend reach their maximum intensity mountaintop. The results indicate differences between short-duration (1–3 h) long-duration (at least 6 events. Short-duration begin farther from mountaintop then propagate eastward, while remain longer around that initiate eastern display westward propagation frequently slope mountain. Among them, west at high speeds, but is mainly confined Mountain. For mountaintop-originated RREs, quickly reaches its after it starts continues for time during period late afternoon early morning. These findings provide references fine-scale prediction small-scale mountainous areas.