2017年内蒙古地区高温天气统计分析  

Statistical Analysis on High Temperature Weather in Inner Mongolia in 2017

作　　者：李一平 张敏 德勒格日玛 Li Yiping(Inner Mongolia Meteorological Observatory,Inner Mongolia Huhhot 010051)

机构地区：[1]内蒙古气象台,内蒙古呼和浩特010051

出　　处：《内蒙古气象》2018年第3期3-9,共7页Meteorology Journal of Inner Mongolia

摘　　要：文章使用常规观测气象资料及内蒙古119个国家站逐小时自动气象观测资料,对2017年内蒙古地区出现的日最高气温≥35℃的高温天气进行了统计分析。分析发现:全年有107个国家气象站出现≥35℃的高温天气754次,全区各盟市均有高温天气出现,站点主要分布在阿拉善盟、乌海市、锡林郭勒盟西北部、赤峰市东北部、通辽市东北部、兴安盟东部等地;高温天气集中发生在6、7月份,7月最多;日最高气温主要出现在15—17时;分析高温站次超过20次的日期,大部分均为全区性的高温天气;极端高温事件比较频发,而且出现时间早、强度大,5月18日东部地区就有20站出现极端高温事件,东部区40℃以上的高温天气主要出现在5月18日;高温发生时高空对应高压(脊),低层处于暖区,地面减压。The statistical analysis of the high temperature weather that the highest temperature is higher than 35℃ has done in this paper using hourly data set of automatic observational data of 119 national weather station of Inner Mongolia .The results shows that number of times of high temperature weather station （≥ 35℃） is 754 times in 107 national weather station over the year ,it distributed over the whole region of Inner Mongolia ,but mainly in the Alxa ,Wu Hai city, northwest of Xilingol League, northeast of Chifeng city ,northeast of Tongliao city, east of Hinggan League and et al; The high temperature weather mainly take place in June and July ,mostly occurring in July; The prime period of emergence is between 15 to 17 in a day; The day that the number of times of high temperature weather station is higher than 20 is always belong to the regional high temperature process .Extreme high temperature events are more frequent ,appears earlier and great intensity ,20 national weather station of eastern part of Inner Mongolia occurs the event in 18 May ,and mainly concentrated in the day and the highest temperature is higher than 40 ℃ ;The circulation situation of high temperature weather is high pressure （ridge） in the upper air ,warm zone, decreasing of surface pressure in the corresponding zone .

关 键 词：时空分布 极端高温事件 环流特点 要素分析 

分 类 号：P445.4[天文地球—大气科学及气象学]