AUTOMATIC SEPARATION AND EXTRACTION OF NON-TIDALINFORMATION FROM CONTINUOUS GRAVITY OBSERVATION
Yang Guangliang 1,2,3) ;Zhou Lijuan 2,3) ;Shen Chongyang 2,3) ; and Wei Jin 2,3)
1)Geodynamics Laboratory, College of Earth Sciences, Graduate University of CAS, Beijing 1000392)Institute of Seismology, China Earthquake Administration, Wuhan 4300713)Crustal Movement Laboratory,Wuhan 430071
Abstract：The effect of tidal, peak, step, instrument drift and trend from the continuous tidal gravity data was removed by using the automatic extraction algorithm based on EMD and earthquake triggering algorithm, and achieved successfully the automatic extraction of tidal and nontidal gravitational information. The examples show that the algorithm greatly reduces the manual work and it may be used for batch processing and quickly extracting the information of nontidal changes of a large number of stations.
Yang Guangliang,Zhou Lijuan,Shen Chongyang et al. AUTOMATIC SEPARATION AND EXTRACTION OF NON-TIDALINFORMATION FROM CONTINUOUS GRAVITY OBSERVATION[J]. jgg, 2011, 31(3): 75-78.
