Power spectrum analysis and multifractal detrended fluctuation analysis of Earth's gravity time series

被引：22

作者：

Telesca, Luciano ^{[1
]}

Lovallo, Michele ^{[2
]}

Mammadov, Samir ^{[3
]}

Kadirov, Fakhraddin ^{[3
]}

Babayev, Gulam ^{[3
]}

机构：

[1] Inst Methodol Environm Anal, Natl Res Council, I-85050 Cda S Loja, Tito, Italy

[2] ARPAB, I-85100 Potenza, Italy

[3] ANAS, Inst Geol & Geophys, Baku, Azerbaijan

来源：

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 2015年 / 428卷

关键词：

Gravity time series; Power spectrum; Multifractal detrended fluctuation analysis; EARTHQUAKES; TIDES; CAUCASUS;

D O I：

10.1016/j.physa.2015.02.034

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页码：426 / 434

页数：9

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