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投稿时间:2009-03-05 修订日期:2009-08-18
投稿时间:2009-03-05 修订日期:2009-08-18
中文摘要: 利用2003—2007年中尺度数值模式MM5及探空资料计算的物理量,选取与强对流天气相关性好的热力、动力、能量参数作为预报因子,通过对各参数的空间分布特征和数值与强对流天气落区进行诊断统计分析,及通过参数的搭配,并在考虑因子季节变化特征的基础上,建立强对流诊断预报方程,从而制作福建省未来0~12小时、0~6小时有否出现强对流天气及落区的潜势预报。并用此法回报了2003—2007年3—9月和检验了2008年3—9月的强对流天气。结果表明3—6月潜势预报技巧比7—9月的更高,区域性预报技巧比非区域性的更高,2008年检验结果是0~6小时的预报技巧比0~12小时的低。此法对冰雹、雷雨大风等强对流天气的临近监测预警有较好的指示意义。
中文关键词: 对流参数, 阈值, 统计分析, 潜势预报
Abstract:The forecasting equations of severe convective weather were built using the physical variables obtained from Model MM5 and radiosonde data during 2003 to 2007, by the ways of making the statistic space distribution with location of severe convection and collocating parameters.By considering the seasonal variation characteristics of the factors, potential forecasts of severe convection and location are made in the future 0-6 h and 0-12 h.The results show that the skill of potential forecast is higher during March to June than July to September, and regional than non regional. The method is of good instructive sense to forecast severe convective weather of hail, disastrous gust and so on, although some False Alarm Rate events are produced.
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基金项目:福建省科技厅重点项目:强对流天气短时临近预报预警系统研制(项目编号:2008Y0027)资助
作者 | 单位 |
陈秋萍 | 福建省气象台,福州 350001 |
冯晋勤 | 福建省龙岩市气象局, 龙岩 364000 |
李白良 | 福建省气象台,福州 350001 |
刘锦绣 | 福建省气象台,福州 350001 |
苏万康 | 福建省气象局, 福州 350001 |
陈齐川 | 福建省气象台,福州 350001 |
引用文本:
陈秋萍,冯晋勤,李白良,刘锦绣,苏万康,陈齐川,2010.福建强天气短时潜势预报方法研究[J].气象,36(2):28-32.
CHEN Qiuping,FENG Jinqin,LI Bailiang,LIU Jinxiu,SU Wankang,CHEN Qichuan,2010.owcasting Study of Severe Convective Weather[J].Meteor Mon,36(2):28-32.
陈秋萍,冯晋勤,李白良,刘锦绣,苏万康,陈齐川,2010.福建强天气短时潜势预报方法研究[J].气象,36(2):28-32.
CHEN Qiuping,FENG Jinqin,LI Bailiang,LIU Jinxiu,SU Wankang,CHEN Qichuan,2010.owcasting Study of Severe Convective Weather[J].Meteor Mon,36(2):28-32.