INFLUENCING FACTORS AND CHARACTERISTICS OF DIFFERENT FREQUENCY BANDS OF THERMAL SPRING BODY STRAIN OBSERVATION DATA
Deformation observation located on the interface of each circle and layer has not only the information from the stress accumulation inside the earth,but also the influence of various factors out-side the earth,which has rich connotation of mathematics and physics.Based on the characteristics of comprehensiveness and separability of deformation measurement value series,this paper analyzes Wenquan boday strain,air temperature,water level and air pressure in frequency domain,decomposes the time series value,and studies the influencing factors of different frequency bands of wenquan body strain.The results show that(1)influence of air pressure on the body strain of wenquan main-ly has two frequency bands:Monthly wave between 2~4 hours and 1~2 months;(2)The main factor affecting the annual periodic frequency band of wenquan body strain is the water level,and the phase lags behind the water level by about 29 days;(3)The influence factor of daily wave and sem-idiurnal wave band of Wenquan body strain is solid tide.
Body strainAir pressureWater levelCorrelation coefficientScatter diagram