张掖气象站新旧站址对比观测资料分析

Comparative analysis on observation data between the new and old weather station in Zhangye

本文通过对张掖国家基本气象站迁移后新、旧址对比观测资料之气温、相对湿度、风向风速等气象要素进行分析,发现日平均、最高、最低气温新站都比旧站偏低。其中,最低气温最为明显;相对湿度新站比旧站略小;降水量新站比旧站偏少;平均风速新站比旧站偏大,且风向差异较大,相符率低。新站平均值与旧站前20 a资料检验分析结果显示:平均风速及1月、3月气温差异显著。

After relocation of national basic analysis on observation data between th humidity, wind speed and direction etc. minimum air temperature as well as relati weather station in Zhangye, this paper takes a comparative e new and old station such as air temperature, relative The results show that the daily mean, maximum and ve humidity and precipitation in the new station are lower than the old one with obvious differences in the minimum air temperature. While the average wind speed of the new station is higher than the old one with obvious differences in the wind direction. According to eomparison between average value of new station and observation data of old station at 20 years ago, the average wind speed and air temperature in January and March are dramatical different at the two stations.