R/S Analysis of the Dst Index

被引：2

作者：

Kiselev, B. V. ^{[1
]}

机构：

[1] Russian Acad Sci, Pushkov Inst Terr Magnetism Ionosphere & Radio Wa, St Petersburg Branch, St Petersburg 191023, Russia

来源：

GEOMAGNETISM AND AERONOMY | 2017年 / 57卷 / 03期

关键词：

SOLAR;

D O I：

10.1134/S0016793217030069

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

The paper addresses estimation of the Hurst exponent for time series of the hourly values of the Dst index for the period from 1957 to 2011. It is found that the Hurst exponent is 0.79-0.94 for yearly intervals and 0.8-1.0 for monthly intervals. Based on R/S graphs, the Dst cycles are identified; they range from 3-4 months to 2.2 years and from 8.5 to 22 years in length. It is shown that a Dst time series can be quite satisfactorily described by an alpha-stable Levy process.

引用

页码：326 / 334

页数：9

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