Statistical characterization of the Teoloyucan Magnetic Observatory time signal measurements in Mexico.
Abstract
The Earth's magnetic field is constantly monitored due to its relevance in actual communication systems. The disturbances in the ionosphere in cases produce some problems in the transmission of electromagnetic waves used for: radio, distribution of electrical energy, and in maritime navigation systems or aviation and satellites. Consequently, there are magnetic observatories around the world that take measurements with high quality control, they are assembled by the International real time Magnetic Observatory network INTERMAGNET. The Teoloyucan Magnetic Observatory in Mexico is associated to this global network. The present work is focused in the characterization of the series of data measured at the Teoloyucan Observatory from 2015 to 2017 (TMFT) throughout statistical analysis techniques, in particular by using spectral analysis (exponents a and b), of range re-scaling (Hurst exponent) and Detreding fluctuation analysis in order to obtain information on the non-linear behavior of TMFT data. Our analysis point out to the presence of two main periodicities (12 hours and 24 hours due to diurnal variation) in magnetic signal embedded within an antipersistent structure. We also depict a 6-h periodic component. It is clear a concomitance between DST data and TMFT series for the same period of time.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2019
- Bibcode:
- 2019AGUFMNG13C0757F
- Keywords:
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- 3336 Numerical approximations and analyses;
- ATMOSPHERIC PROCESSES;
- 1990 Uncertainty;
- INFORMATICS;
- 4440 Fractals and multifractals;
- NONLINEAR GEOPHYSICS;
- 8010 Fractures and faults;
- STRUCTURAL GEOLOGY