Rescaled range analysis of ELF natural electromagnetic noise from Antarctica ...

• Main Authors: Salinas, Alfonso, Toledo Redondo, Sergio, Morente, J. A., Portí Duran, Jorge Andres, Navarro, E. A., Méndez, A, Fornieles, J. F., Rodríguez-Sola, M, Novas Castellano, Nuria, Gazquez, Jose A., García-Salvador, Rosa
• Format: Journal/Newspaper
• Language: unknown
• Published: Zenodo 2011
• Subjects: Antarc*; Antarctica
• Online Access: https://dx.doi.org/10.5281/zenodo.10619751; https://zenodo.org/doi/10.5281/zenodo.10619751

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. ... : 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. ...