赤峰市大到暴雪统计特征分析  

Analysis of Statistical Characteristics of Heavy Snow to Blizzard in Chifeng City

作　　者：赵立清[1] 徐建国[1] ZHAO Liqing;XU Jianguo(Tongliao Meteorological Bureau,Inner Mongolia Autonomous Region,Tongliao 028000,China)

机构地区：[1]内蒙古自治区通辽市气象局,内蒙古通辽028000

出　　处：《内蒙古民族大学学报（自然科学版）》2023年第6期533-536,共4页Journal of Inner Mongolia Minzu University：Natural Sciences

基　　金：内蒙古自治区气象局2022年引导性创新基金项目(nmqxydcx202209)。

摘　　要：根据赤峰市14个国家站1951—2022年的日降水量、积雪深度等数据资料,对大到暴雪进行统计分析。结果表明,发生在10月至次年5月之间的区域大到暴雪过程137次,72年升降趋势不明显,最多出现在2010年;20世纪50年代到20世纪90年代呈波动上升趋势,20世纪90年代达到峰值后,20世纪90年代到21世纪10年代呈震荡下降趋势,21世纪20年代前3年合计出现6次,这种震荡下降趋势或将趋于明显,20世纪70年代到21世纪10年代维持较大波动;空间分布自西南向东北递减,随纬度升高而减小,大到暴雪中心多位于喀喇沁旗站,少位于富河站,这种天气特征与大气环流、气旋移动路径、地形等因素有关。Based on the daily precipitation and snow depth of 14 national weather stations in Chifeng City from 1951 to 2022,a statistical analysis of heavy snow to blizzard was carried out.The results showed that 137 times of heavy snow to blizzard occurred between October and May of the following year,and the trend of fluctuation in 72 years was not obvious,and the most occurred in 2010.From the 1950s to the 1990s,there was an upward trend of fluctuation,and after the peak in the 1990s,there was a downward trend of oscillation from the 1990s to the 2010s,and there were six times in the first three years of the 2020s.From the 1970s to the 2010s,large fluc⁃tuations were maintained.The spatial distribution decreased from southwest to northeast and decreased with the increase of latitude,so that the blizzard center is mostly located at Harqin Banner Station and less at Fuhe Sta⁃tion.This weather feature was related to atmospheric circulation,cyclone movement path,terrain and other factors.

关 键 词：大雪 暴雪 统计特征 赤峰市 

分 类 号：S162[农业科学—农业气象学]