Abstract：The paper studies the correlation coefficient, short-period (less than 128 min) atmospheric pressure coefficient, and time-frequency spectrum of volumetric strain of Qingdao station by correlation analysis, regression analysis and cross wavelet transform. The results show that short-period atmospheric pressure can influence volumetric strain of Qingdao station (between 16 and 128 min). High-frequency correlation coefficients, whose periods are less than 16 min, are small and increase with period. Low-frequency(more than 16 min) correlation coefficients are large and variations are small. Low-frequency (between 16 and 128 min) atmospheric pressure coefficient is (3.5~3.6) × 10-9/hPa. When the periods are 16~64 min, the variations with time of atmospheric pressure coefficients are smallest. Cross wavelet transform can reveal the time-frequency spectrum correlation coefficients, which can meticulously study the correlation of atmospheric pressure wave and volumetric strain of different periods.
YUE Long,XU Qingfeng,LIU Yun et al. Analysis on the Influence of Short-Period Atmospheric Pressure Wave on Volumetric Strain of Qingdao Station[J]. jgg, 2019, 39(9): 977-981.
