期刊
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
卷 428, 期 -, 页码 426-434出版社
ELSEVIER
DOI: 10.1016/j.physa.2015.02.034
关键词
Gravity time series; Power spectrum; Multifractal detrended fluctuation analysis
资金
- CNR-ANAS
The time dynamics of gravity signal measured in Sheki, a site in Azerbaijan, where mainly crust deformation processes are present, is investigated by using the power spectrum method and the multifractal detrended fluctuation analysis. Our findings point out to the presence of two main periodicities (12 hours and 24 hours) in gravity signal. The analyzed gravity signal shows also a significant multifractality that depends on the long-range correlations of the time series rather than its probability density function. (C) 2015 Elsevier B.V. All rights reserved.
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