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分析蒙古低压造成的黑龙江省大雪过程的大尺度环流背景与云型模式，找出云系与高、低空急流及物理量场的配置关系。分析云图演变来预报蒙古低压大雪的落区、时段及强度。
The large-scale circulation background and cloud pattern of heavy snowfall in Heilongjiang province caused by low pressure in Mongolia are analyzed to find out the relationship between the cloud system and the distribution of high and low level jet streams and physical fields. Analyze the evolution of cloud images to predict the area, time and intensity of heavy snowfall in Mongolia.