章丘国家基本气象站历史观测资料分析

Analysis on the historical observation data from Zhangqiu national ordinary meteorological station

为探讨城市化进程对章丘国家基本气象站气象要素的影响,采用数理统计方法对章丘站进行观测资料序列完整性、区域一致性和均一性分析。结果表明,(1)章丘站观测资料序列完整。(2)章丘站观测资料区域一致性较差。降水区域一致性较好,气温、相对湿度和风速区域一致性均较差。2004年后气温区域一致性较差,1989年后相对湿度区域一致性较差,2000年后风速区域一致性较差。(3)章丘站观测资料序列均一性较好。年平均气温与年平均风速观测资料序列连续性较好,年降水量与年平均相对湿度观测资料序列连续。其中年平均气温存在1个断点,出现在站址迁移的1995年;年平均风速存在2个断点,出现在站址迁移的1984年和1995年。提示受城市化进程影响,章丘站部分气象观测要素的代表性和准确性受到影响,此结果可为站点迁移提供参考依据。

In order to study the impact of urbanization on the meteorological elements of Zhangqiu national ordinary meteorological observation station,statistics were conducted to analyze the integrity,consistency and uniformity of meteorological observed data at Zhangqiu station.The results showed that:(1)the integrity of observational data of Zhangqiu station was well.(2)the regional consistency of the observation data of Zhangqiu station was poor.The regional consistency of precipitation was better,while the consistency of temperature,relative humidity and wind speed were poor in present site.The regional consistency of temperature was poor after 2004,the regional consistency of relative humidity was poor after 1989,and the regional consistency of wind speed was poor after 2000.(3)the uniformity of observation data of Zhangqiu station was more equal.The annual average temperature and the annual average wind speed observation data sequence were more continuous,and the annual precipitation and the annual average relative humidity observation data sequence were continuous.There was one breakpoint in the annual average temperature in 1995,and two breakpoints in the annual average wind speed in 1984 and 1995.It was suggested that the representativeness and accuracy of some meteorological observation data of Zhangqiu station were affected by the urbanization process,and the results can provide reference for site migration.