Abstract: In order to study the impact of the urbanization process on the ground temperature of old meteorological observation station, statistics were conducted to analyze and compare the average ground temperature and difference value over the depth of 0~320 cm in the same period and around five years in 2012 between the old and new meteorological observation stations of Bazhou city. Meanwhile, the t test was conducted with the monthly mean ground temperature. The results showed that the ground temperature（the depth spans from 0 cm to 320 cm） of the new site was lower than the older one in winter and spring, and the temperature was higher than the old site in summer and autumn. At both sites, the daily change curve of annual mean ground temperature was sinusoidal over the depth of 0~20 cm. The curve over the depth of 40~320 cm was relatively flat. For both sites, the differences of monthly mean temperature was small and the continuity was good. However, the fluctuations of the difference between the two sites were large. The difference of deeper ground temperature varied more significantly than the shallow layer temperature, it shouldn't be used until it's revised.

Key words: meteorological station, station moving, ground temperature, comparative analysis, mean test, Bazhou city