摘要
以2020—2021年黄南雷暴大风天气为研究对象,分析其时空分布规律和天气分型,并用配料法和百分位数法对探空对流参数进行指标筛选和阈值划分,得出:黄南北部雷暴大风次数明显高于南部高海拔地区;雷暴大风只发生在春夏季,主要在白天,集中在午后;雷暴大风天气型可归纳为高压脊型、低槽型、西北气流型、副高边缘型、冷涡型;黄南地区雷暴大风发生前春季以动力作用为主,夏季以热力作用为主,水汽条件无明显月季变化。
Taking the thunderstorm and gale weather in Huangnan from 2020 to 2021 as the research object,the temporal and spatial distribution law and weather types of thunderstorm and gale weather in Huangnan were analyzed,and the index screening and threshold division of radiosonde convection parameters were carried out by using the ingredient method and Percentile method;Thunderstorms and strong winds only occur in spring and summer,mainly during the day and concentrated in the afternoon;The thunderstorm and strong wind weather patterns can be classified into high-pressure ridge type,low trough type,northwest airflow type,subtropical high edge type,and cold vortex type;Before the occurrence of thunderstorms and strong winds in the Huangnan region,the main effect was dynamic in spring and thermal in summer,with no significant seasonal changes in water vapor conditions.
作者
郭安欣
邢子毅
王敏
Guo An-xin(Huangnan Prefecture Meteorological Station,Huangnan,Qinghai 811300)
出处
《农业灾害研究》
2023年第10期241-243,278,共4页
Journal of Agricultural Catastrophology
关键词
雷暴大风
黄南地区
对流参数
箱线图
Thunderstorms and strong winds
Huangnan region
Convection parameters
Box diagram
