摘要
应用常规天气图和T10 6数值预报模式标准等压面上的 1°× 1°格点资料 ,对 1998年 5月 2 0日甘肃陇东地区和宁夏的暴雨天气过程进行了分析和研究。结果表明 ,暴雨天气产生在西北干冷空气与低空暖湿气流的辐合区内 ,由于低空急流的作用 ,大量的水汽不断输送至暴雨区 ,入侵冷空气触发了对流不稳定能量的释放 。
By Applying routine synoptic chart and standard isobaric surface grid data of T106 NWP,the rainstorm weather process happened in NingXi and east part of Gansu province.are analyzed and stualyed The results show :Rainstorm happened in the convergence field of dry-cold aii and lower warm-moist air ,because of effecting of lower level jet, a great deal of vapor was transported into rainstorm region ,cold air caused releasing of convection unsteady energy.
出处
《甘肃气象》
2000年第3期24-27,共4页
Gansu Meteorology
