August 28, 2022 to September 1, 2022
Serbian Academy of Sciences and Arts – SASA
Europe/Belgrade timezone

Preliminary results on the multifractal nature of the main geomagnetic field

S10-MG-209
Aug 29, 2022, 6:00 PM
1h 30m
Lobby (Faculty of Physics)

Lobby

Faculty of Physics

Board: S10-MG-209
Poster presentation S10 Meteorology and Geophysics Poster session

Speaker

Dr Klaudio Peqini (Physics Department, Faculty of Natural Sciences, University of Tirana)

Description

The external geomagnetic field is known to exhibit multifractal behavior as deduced by analyzing the extensive magnetic field time series. Usually the internal magnetic field is not discussed because its changes occur with a much longer time scale. However, one can make use of the existing palaeomagnetic measurements of the dipolar (internal) field that offer a broad view on the geological past. We have analyzed two series that offer a view of the magnetic dipole for the last 4 million and 2 million years respectively. The multifractal nature is determined by analyzing the Hurst exponent through the Multi Fractal - Detrended Fluctuation Analysis method. Also, we have studied the time evolution of the Hurst exponent for each series. The respective discussions are made for each case.

Primary authors

Prof. Dod Prenga (Physics Department, Faculty of Natural Sciences, University of Tirana) Dr Klaudio Peqini (Physics Department, Faculty of Natural Sciences, University of Tirana) Dr Rudina Osmanaj (Physics Department, Faculty of Natural Sciences, University of Tirana)

Presentation materials