摘要
该文在海拔高度分类之下,通过大量雨凇样本的气象条件概率分布分析,建立贵州雨凇灾害指标,即同时满足以下条件,则当日定为雨凇日:1日最低气温≤0℃;2日平均气温≤1℃(其中威宁站不受该条件约束);3当日无日照(其中威宁站不受该条件约束);4当日有降水,包含微量降水。通过该标准的筛选,所建立的雨凇灾害指标得到的雨凇日数在全省的分布形态基本与实况雨凇资料的结果一致。该指标的建立对雨凇资料的缺测起到一定的补充作用,同时还有利于进一步了解雨凇灾害发生时的气象条件。
Based on the probability distribution analysis of meteorological factor and altitude classification for alarge number of glaze samples, glaze disaster index in Guizhou was established when satisfied the conditions that 0℃ daily minimum temperature, ≤1 ℃ daily average temperature （ not for Weining station）, non-daily sunshine du-ration（ not for Weining station）and no-less-than-the-minimum precipitation. Results show that the distribution of the averaged glaze days arising from this index was consistent with observational results, improving the completion ofthe missing glaze data to some extent and the understanding of the meteorological conditions when glaze disaster oc- curs.
出处
《贵州气象》
2015年第3期1-5,共5页
Journal of Guizhou Meteorology
基金
贵州省气象局2012年业务项目"气候诊断业务"
贵州省气象局2013年业务项目"贵州省太阳辐射资源的评估"
关键词
贵州
地形
雨凇灾害
指标
Guizhou
Topography
Glaze Disaster
Index
