SLOPE ARC-TANGENT QUANTITATIVE ANALYSIS OF CRUSTAL DEFORMATION DATA BASED ON TIME-SERIES PATTERN
Daiqin Liu · Inland Earthquake · 2010
The author mainly introduces the basic principles and algorithms of time-series model.By processing the crustal deformation data to arctangent vector,the hour data of the arctangent is calculated(one data per hour),and then the arctangent data of each month is extrapolated.Through fitting and analyzing the similar error of every month,the author obtain the months falling away from the 1.2 times medium error threshold.The corresponding analysis of Dayao 6.0 double earthquakes shows an abnormal phenomenon in one to five months before the earthquakes,which illuminates that this method can be practical in the crustal deformation data processing.