现代农业科技Issue(14)：119-123,5.DOI:10.3969/j.issn.1007-5739.2024.14.029
陇东地区极端高温天气气候特征及影响系统分析
Analysis on Climatic Characteristics and Influence Systems of Extreme High Temperature Weather in Eastern Gansu Province
摘要
Abstract
Based on the surface,high and low levels observation data and actual observation data of the extreme high temperature weather (above 35 ℃) in Qingyang City from 1991 to 2022,the spatial and temporal distribution characteristics and influence system of the extreme high temperature weather in eastern Gansu Province were analyzed by using statistical method and wavelet analysis method. The results showed that the appearance of extreme high temperature weather in Qingyang City was greatly influenced by topography,among which there were more in mountains and gullies and less in tablelands. In terms of time distribution,most of the extreme high temperature occured from 14:00 to 15:00 and 15:00 to 16:00 in a day,and more extreme high temperature weather occured in June and July in a year,and the interannual variation took 10 years as the cycle. The main influence systems of the extreme high temperature weather included plateau warm zone,Qinghai-Tibet high and subtropical high,etc.,and the extreme high temperature weather could be divided into Tibetan high control type,subtropical high circulation type and other types.关键词
极端高温天气/气候特征/时空分布/影响系统Key words
extreme high temperature weather/climatic characteristic/spatial and temporal distribution/influence system分类
天文与地球科学引用本文复制引用
李祥科,张洪芬,刘翔,翟少婧..陇东地区极端高温天气气候特征及影响系统分析[J].现代农业科技,2024,(14):119-123,5.基金项目
庆阳市气象局局列项目(QY2022-6) （QY2022-6）
甘肃省青年科技基金(23JRRM0750) （23JRRM0750）
甘肃省气象局科研项目(Ms2023-08). （Ms2023-08）
