【摘要】 基于Python利用GPM卫星资料对四川地区2018年5月21日降水事件结合坡度、海拔进行了一次分析。结果表明：此次降水属于暴雨—大暴雨等级，主要降水区域集中在104°E、29°N附近；坡度和冻结层高度、雷暴云顶高都呈线性变化，对流云降水呈正相关趋势，层状云降水呈负相关趋势，对流云的相关系数大于层状云的相关系数，坡度对对流云的云高影响较大；海拔和冻结层高度、雷暴云顶高变化趋势与坡度和冻结层高度、雷暴云顶高变化趋势一致，但层状云的相关系数大于对流云的相关系数，海拔对层状云的云高影响较大。更多还原

【Abstract】 An analysis of the precipitation event of May 21, 2018 in Sichuan region combined with slope and elevation was conducted once based on python using GPM satellite data. The results show that the precipitation belongs to heavy rainfall-heavy rainfall level, and the main precipitation area is concentrated near 104°E and 29°N; the slope and freezing height, storm top altitude all show linear changes, convective cloud precipitation shows a positive correlation trend, stratiform cloud precipitation shows a negative correlation trend, the correlation coefficient of convective cloud is larger than that of stratiform cloud, the slope has a greater influence on the cloud height of convective cloud; the change trend of freezing height and storm top altitude is consistent with the change trend of slope and freezing height and storm top altitude, but the correlation coefficient of stratiform cloud is greater than that of convective cloud, and the influence of altitude on cloud height of stratiform cloud is greater.更多还原