Published March 31, 2011 | Version accepted
Conference proceeding Open

Rescaled range analysis of ELF natural electromagnetic noise from Antarctica

Creators

  • 1. Department of Electromagnetism and Matter Physics, University of Granada, Granada 18071, Spain
  • 2. Department of Applied Physics, University of Granada, Granada 18071, Spain
  • 3. Department of Applied Physics, University of Valencia, Burjassot, Valencia 46100, Spai
  • 4. Department of Computer Architecture and Electronics, University of Almer´ıa La Ca˜nada de San Urbano 04120, Almer´ıa, Spain

Description

We present the results of a statistical rescaled range (R/S) analysis of natural electromagnetic noise in the extremely low frequency (ELF) band. The Hurst exponent was derived from the records of two horizontal magnetic antennas taken in Antarctica with a sample frequency of 512 Hz, to guarantee enough resolution with the small number of samples in the analysis. The study shows that ELF radio noise is a persistent random process, maintaining its value between 0.75 and 0.85 for the different series analyzed. A numerical simulation was performed, in which each discharge was modeled by the radiated field of a wire antenna excited by a Gaussian pulse, demonstrating a way of inferring lightning rates from R/S analysis.

Abstract (English)

We present the results of a statistical rescaled range (R/S) analysis of natural electromagnetic noise in the extremely low frequency (ELF) band. The Hurst exponent was derived from the records of two horizontal magnetic antennas taken in Antarctica with a sample frequency of 512 Hz, to guarantee enough resolution with the small number of samples in the analysis. The study shows that ELF radio noise is a persistent random process, maintaining its value between 0.75 and 0.85 for the different series analyzed. A numerical simulation was performed, in which each discharge was modeled by the radiated field of a wire antenna excited by a Gaussian pulse, demonstrating a way of inferring lightning rates from R/S analysis.

Files

2011-accepted_Rescaled Range Analysis of ELF Natural Electromagnetic Noise.pdf

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Additional details

Related works

Is previous version of
Conference paper: 1559-9450 (ISSN)

References

  • Salinas, A., Toledo-Redondo, S., Morente, J. A., Portı, J. A., Navarro, E. A., Méndez, A., ... & Garcıa-Salvador, R. (2011, March). Rescaled range analysis of ELF natural electromagnetic noise from Antarctica. In Progress In Electromagnetics Research Symposium Proceedings.