摘要
基于鲁中山区24个国家级气象观测站1997—2016观测数据,统计分析了冰雹、雷暴大风、短时强降雨3类典型强对流天气的时空分布特征;利用济南新一代多普勒天气雷达历史资料统计分析了鲁中山区强对流特征,结果表明:(1)雷暴大风和短时强降水的空间分布特征较为一致,中心在济南一带;冰雹在泰安市附近出现的频次较多。(2)雷暴大风的年际变化趋势与冰雹较为一致;短时强降水与以上2种有差别。(3)4—6月为冰雹盛行月,以6月最多;雷暴大风的月变化特征与冰雹相对较为一致。(4)强降水发生的时间多在06:00前后和14:00至前半夜,雷暴大风08:00和18:00前后有2个峰值。(5)组合反射率超过35 dBz总次数大值区主要位于黄河以南、鲁中山区西北部一线,中心位于泰山山脉西北部。
Based on the observation data from 1997 to 2016 of 24 national meteorological stations in mountainous area of Mid-Shandong,the spatial and temporal distribution characteristics of three typical severe convective weather,such as hail,thunderstorm gale and short-time heavy rainfall,were statistically analyzed.The results showed that:(1)The spatial distribution characteristics of thunderstorm gale and short-term heavy rainfall were relatively same.Therefore,the center was in Jinan,while the frequency of hail near Tai’an was more.(2)The interannual variation trend of thunderstorm and gale was consistent with hail,while the short-term heavy rainfall was different from the above two.(3)In spring,the hail was prevalent from April to June,with the most in June.(4)The time of heavy precipitation was around 06:00 and 14:00to early midnight,and there were two peak values of thunderstorm gale around 08:00and 18:00.(5)The total times of combined reflectivity exceeding 35 dBz were mainly located in the south of the Yellow River and the northwest of mountainous area of MidShandong,and the center was located in the northwest of Mount Tai.
作者
何鹏程
张可欣
张秀娟
HE Pengcheng(Jinan Meteorological Bureau,Jinan,Shandong 250100)
出处
《农业灾害研究》
2022年第5期58-60,63,共4页
Journal of Agricultural Catastrophology
基金
山东省气象局面上课题资助项目(2017sdqxm18)。
关键词
鲁中山区
强对流天气
分类统计
时空分布特征
mountainous area of Mid-Shandong
Severe convective weather
Classified statistics
Spatial and temporal distribution characteristics
