摘要
本文利用NCEP/NCAR 2.5°×2.5°资料、常规观测资料以及自动站资料,对2016年7月31日至8月1日的降水天气过程进行分析。结果表明,一方面由于冷空气较弱,主要是暖性系统带来降水,故没有强对流天气发生;另一方面由于温压场配置中,温度场紧随高度场,暖平流、正涡度明显,导致系统东移较快,低值系统填塞。因此,降水实况偏小,仅局部地区出现暴雨。
Based on NCEP/NCAR 2.5°×2.5° data,conventional observation data and automatic station data,the precipitation process lrom July 31 st to August 1,2016 was analyzed. The results showed that, on the one hand, the cold air was weak, mainly the warm system to bring precipitation, so there was no strong convective weather.On the other hand, due to temperature and pressure field configuration, the temperature field followed by height field,warm advection, positive vorticity,resulting in faster eastward movement,low value system packing, so the precipitation was too small, only local areas of heavy rain.
出处
《现代农业科技》
2017年第23期209-210,共2页
Modern Agricultural Science and Technology
基金
抚顺市气象局重点科研课题"气象台站灾害性天气警报及报告系统"
抚顺市气象局重点科研课题"ECMWF细网格模式降水产品在抚顺弱降水中的应用检验"
