摘要
基于常规观测资料、ERA5再分析资料及探空资料,分析了金坛地区2017—2021年不同天气型短时强降水的分布特征和相应的关键环境参数特征。结果显示:(1)短时强降水天气型主要分为槽前型、冷涡(槽)后型、副高边缘型、副高控制型和台风型。4—5月以槽前型为主;冷涡(槽)后型主要出现在6—7月;副高边缘型在8月高发;副高控制型主要出现在7—8月;台风型主要出现在8月。(2)短时强降水的时空特征和5种天气型对应的关键环境参数都存在明显差异。
Based on conventional observation data,ERA5 reanalysis data and the sounding data,conducted the spatial-temporal distribution and key environmental parameter characteristics of short-time severe rainfall over different weather flow patterns in Jintan District from 2017 to 2021.The results show that:(1)The weather flow patterns of short-time severe rainfall are mainly divided into before trough type(BTT),after cold eddy type(ACET),subtropical high borderline type(SHBT),subtropical high control type(SHCT)and typhoon type(TT).from April to May,BTT is dominant.ACET mainly appears in June and July.The frequency of SHBT is highest in August.SHCT mainly appears from July to August.TT mainly appears in August.(2)The temporal and spatial characteristics of shortterm heavy rainfall and the key environmental parameters corresponding to the five weather patterns were obviously different.
作者
周舒佳
顾杰
温静
钟亚含
ZHOU Shujia(Jintan District Meteorological Bureau,Changzhou,Jiangsu 213200)
出处
《农业灾害研究》
2022年第11期23-26,共4页
Journal of Agricultural Catastrophology
基金
常州市气象局科研项目“金坛地区短时强降水特征与类型分析”(2207)。
关键词
短时强降水
天气型
分布特征
环境参数
Short-time severe rainfall
Weather flow patterns
Distribution characteristics
Environmental parameter
