2012年两次台风造成黑龙江省大范围暴雨的成因对比分析

摘要

Analyze the causes of twice large-scale rainstorm process caused by “Bolaven” and “san ba” in 2012 with the conventional observation data and infrared satellite data. It shows that, different atmospheric circulation causes different path of the two typhoon; after landing northward, they combine with cold air and form different temperature and pressure structure, high value region of straight upward motion and cloud, all that lead to differ-ent precipitation area and intensity.%用常规观测资料和红外卫星云图资料对2012年台风“布拉万”和“三巴”登陆后变性北上给黑龙江省造成大范围暴雨天气过程成因进行了对比分析。结果表明台风“布拉万”、“三巴”受不同大气环流背景影响导致台风北上的路径不同；登陆北上后与冷空气结合形成不同的温压场结构、垂直上升运动大值区及云系导致降水落区和强度的不同。