Automatic observation methods for frozen soil in Liaoning Shenyang region
Sha Li1, Zhang Yimeng1, Ma Chengzhi2, Li Peng3
1.Liaoning Meteorological Equipment Support Center,Shenyang 110166; 2.Kazuo Meteorological Administration,Chaoyang 122399; 3.No.27 Institute of China Electronic Technology Group,Zhengzhou 450045
Abstract：By using the observational data of frozen soil and depth soil temperature in Shenyang observation station from the year of 2007 to 2017,and by means of comparing observed data between automatic and manual observation methods, this paper studies and analyzes the dynamic response characteristics of automatic observing frozen soil equipment based on temperature change factors.The results show that there is a certain correlation between the maximum seasonal frozen depth and temperature change factors.When analyzing response characteristics and sensor's static test of automatic observation instrument,it should be considered the influence of the environmental change between the thermal factors,especially between the temperature and the direct contact sensor on the freezing depth and the linearity and sensitivity of the sensor response.
2019, Vol. 36 
