1953-2009年林西站气象要素变化分析

Variation Analysis of The Meteorological Elements of Linxi During 1953-2009

对林西气象站1953-2009年气温、风速、降水量月、季、年观测资料进行了统计,分析了近57年三个要素的年际变化和突变特征,为气象站的迁站资料评估提供参考依据。结果显示,该站近57年平均气温显著升高,平均风速明显减小,两个要素都有明显的突变特征。分析认为,这种变化特征除与区域气候变化的响应有关外,主要与该地城镇的发展及测站周边逐步出现较高建筑物的影响有关。

The annual changes and mutation features of air temperature,wind speed,precipitation in the last 57 years were analyzed via analyzing the observation data of the three meteorological elements of Linxi in 1953-2009.The results showed that the average air temperature and increased significantly and the average wind speed decreased notably.These elements had outstanding mutation features.Analysis showed that in addition to regional climate change,these mutation features were related to the development of Linxi and the emergence of high building around the station.