倒春寒气象指标在包头地区的应用与讨论  

Discussion on the Application of the Late Spring Cold Index in Baotou Area

作　　者：赵怡卿[1] 王东 夏雪莲[1] ZHAO Yiqing(Baotou Meteorological Bureau of Inner Mongolia,Baotou,Inner Mongolia 014030)

机构地区：[1]包头市气象局,内蒙古包头014030

出　　处：《农业灾害研究》2022年第12期63-65,共3页Journal of Agricultural Catastrophology

摘　　要：根据倒春寒气象指标的国家标准,选取包头地区4个代表站1991—2020年3—5月逐日气象资料,计算倒春寒程度指标K值并整理个例。结果表明,近30年内,有20.0%~60.0%的年份出现了倒春寒;发生程度总体偏轻,其中,轻度倒春寒占总过程数的66.7%~88.9%,中度倒春寒占11.1%~33.3%,未出现重度倒春寒;各地倒春寒持续时间多在4~8 d,占总过程数的50.0%~72.2%,只有22.2%~33.3%的过程持续时间10 d以上。从倒春寒发生程度和发生频数来看,倒春寒不是包头地区主要的气象灾害。According to the national standard on the late spring cold,this paper used the daily meteorological data during 1991-2020 to calculate the index-value K.The result shows.In the past 30 years,the 20%~60%of the years occurs the late spring cold,the light degree occupy about 66.7%~88.9%,the middle degree occupy about 11.1%~33.3%,never occurs the heavy degree.Most of the late spring cold last during 4~8 days.occupy about 50.0%~72.2%of the total,22.2%~33.3%of the total last for more than 10 days.The late spring cold appeared on low frequency and light level,so it is not the major meteorological disaster in baotou aero.

关 键 词：倒春寒 指标 程度等级 

分 类 号：S277[农业科学—农业水土工程]