气象上寒潮天气两种不同统计方法的探讨

文章使用多伦县2001—2010年寒潮天气统计资料,分析了当地寒潮变化特征,通过对寒潮统计两种不同方法从降温特征、大气环流特征及地表覆盖几个方面进行分析,得出如下结论:按日最低气温降温幅度统计寒潮天气出现次数明显多于按日平均气温降温幅度统计寒潮天气出现的次数,尤其在初冬和冬末季节日最低气温变化比日平均气温变化幅度更加剧烈。

Discussion on the Two Different Statistical Methods of Cold Wave Weather in Meteorology

Using the statistical data of cold wave weather in Duolun from 2001 to 2010, this article analyzed the algorithm, cool features and atmospheric circulation characteristics of cold wave weather, the results showed that the occurrence number of cold wave was obviously more according to the statistical standard of cooling range of daily minimum temperature than according to the statistical standard of cooling range of daily average temperature, especially in early and late winter, the rangeability of daily minimum temperature was more great than daily average temperature.