赤峰地区近60年雪灾时空分布特征分析

Analysis on Temporal and Spatial Distribution Characteristics of Snow Disaster in Chifeng Area in Recent 60 Years

利用赤峰市14个国家气象站观测数据和灾情数据对赤峰市近60年雪灾特征进行了分析,结果表明,赤峰市雪灾主要由暴雪或暴风雪引发,赤峰市初雪多出现在9月—10月,最早的暴雪日在9月上旬;终雪多出现在次年的4月—5月,最晚的暴雪日在5月上旬。赤峰市暴雪日数整体呈现西南向东北递减的特点,暴雪日数大值中心位于赤峰市南部。暴风雪灾害主要集中在赤峰市东南部,白灾多集中在赤峰市西部地区。

Based on the observation data and disaster data of 14 national meteorological stations in Chifeng City,the characteristics of snow disaster in Chifeng City in recent 60 years are analyzed.The results show that the snow disaster in Chifeng City is mainly caused by blizzard or snowstorm.The first snow in Chifeng City mostly occurs from September to October,and the earliest snowstorm day is in the first ten days of September;The final snow mostly occurs from April to May of the next year,and the latest Blizzard day is in early May.The number of blizzard days in Chifeng City shows the characteristics of decreasing from southwest to northeast as a whole.The large value center of blizzard days is located in the south of Chifeng City.The snowstorm disaster is mainly concentrated in the southeast of Chifeng City,and the snowstorm disaster is mostly concentrated in the west of Chifeng City.