自动气象站地温跳变的分析与处理

Analysis and Treatment of Jumping of Automatic Meteorological Station Earth Temperature

通过多年B文件中逐日浅层地温资料的统计分析,归纳出了浅层地温变化的一般规律;并针对浅层地温发生跳变的现象,通过对B文件维护及RTD文件的分析,发现地温传感器经过长时间运行,铂电阻稳定性及地温传感器密封性变差是导致浅层地温发生跳变的主要原因。

Through analyzing data of shallow earth temperature day by day in B file, the authors concluded general regular of change of shallow earth temperature. Aiming at phenomenon of jumping of shallow earth temperature, through analyzing maintenance of B file and RTD file, the authors found the reasons of leading to jumping of shallow earth temperature are bad stability of platinum resistor and sealing of earth temperature sensor.