Abstract:

 By comparing observation data of Weichang national meteorologjcal basic station from July 2008 to June 2009，the differences of meteorological factors such as air temperature，wind speed，wind direction and vapor pressure between the new and the old station were analyzed． The results show that the air temperature at the new station is lower than that at the old station，and the wind speed is obviously bigger，the dominant wind direction changes and the vapor pressure is lower at the new station． All the differences come from urbanization impact．

Key words: meteorological factors, mean value differences, urbanization impact

摘要：

根据2008 年7 月至2009 年6 月围场国家基本气象站新、旧站址对比观测数据，利用均值差异、显著性检验等统计分析方法，系统地分析了新、旧站址的气温、风向风速、水汽压等气象要素的差异及差异产生原因。结果表明，新站址观测记录较旧站址气温偏低、风速显著偏大、主导风向有偏差、水汽压偏小，各气象要素差异产生的原因主要是来源于城镇化影响。

关键词: 气象要素, 均值差异, 城镇化影响