近18年通辽市高温天气时空分布及环流特征  

Temporal and Spatial Distribution and Circulation Characteristics of High Temperature Weather in Tongliao City in Recent 18 Years

作　　者：万宇[1] WAN Yu(Tongliao Meteorological Bureau,Tongliao,Inner Mongolia 028000)

机构地区：[1]通辽市气象局,内蒙古通辽028000

出　　处：《农业灾害研究》2022年第12期69-71,共3页Journal of Agricultural Catastrophology

基　　金：2018年通辽市气象局科技项目(201804)。

摘　　要：基于2001—2018年的逐日极端最高气温资料和MICAPS实况观测资料,采用线性倾向估计方法,对通辽近18年的高温天气气候特征进行统计分析,并对所有高温天气样本进行天气形势分型统计,得出如下结论:(1)通辽每年都有高温天气出现,始于4月下旬,于9月中旬结束,平均年高温日数为6.1 d,近18年通辽的年高温日数总体呈线性增加趋势;(2)通辽的高温天气形势主要有暖脊型43个(占38.4%)、副高型15个(13.4%)、纬向环流型25个(22.3%)、低槽型20个(17.9%)、阻塞高压型9个(8%)。Based on the daily extreme maximum temperature data and MICAPS live observation data from 2001 to 2018,the linear trend estimation method is used to statistically analyze the climatic characteristics of Tongliao’s high-temperature weather in the past 18 years,and the weather situation classification statistics is carried out for all high-temperature weather samples.The following conclusions were drawn:(1)Tongliao has high-temperature weather every year,starting in late April at the earliest and ending in mid September,with an average annual number of high-temperature days of 6.1 days,In recent 18 years,the annual high temperature days in Tongliao showed a linear increasing trend;(2)The high-temperature weather situation in Tongliao mainly includes 43 warm ridge type(38.4%),15 subtropical high type(13.4%),25 zonal circulation type(22.3%),20 low trough type(17.9%),and 9 blocking high type(8%).

关 键 词：高温 线性倾向估计 环流特征 

分 类 号：P468.02[天文地球—大气科学及气象学]