五华气象站新旧站的观测资料对比分析

随着城市的发展，气象站旧址的气象探测环境已不能满足国家基本气象站的要求。2008年8月在五华站新址安装自动气象站，2009年1月开始开展新旧测站的资料对比工作。本文采用差值的方法，对五华气象观测站新旧站址的1～7月份的气温、风、降水对比观测进行分析，发现旧址的月平均温度在对比观测期间比新址偏高；旧址的风速明显较新址的小；新址与旧址观测所得的降水量差异较大。总体来看，新址与旧址观测数据差异较明显，新址的观测资料克服了旧址因气象探测环境破坏后对气象要素造成的较大影响。

Data comparisons between new and old automatic weather station in Wuhua

With urban development, the meteorological environment of the old station can not satisfy national requirements for basic weather station. The new automatic weather station was built in Aug. 2008, and data comparisons between the old and new station were carried out in Jan. 2009. Based on the difference methods, the observation data of temperature, wind and precipitation from January to July in these two stations were comparative analyzed. Itrs found that mean monthly temperature of the old site was higher than that of new site~ wind speed of the old site was smaller than the new one; precipitations observed by these two stations were quite different. Overall, it exists obvious differences on observation data between the old station and the new one. The data observed by the new one overcomes the effect of destroyed meteorological environment on meteorological elements.