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Tatsis G, Sakkas A, Christofilakis V, Baldoumas G, Chronopoulos SK, Paschalidou AK, Kassomenos P, Petrou I, Kostarakis P, Repapis C, Tritakis V. Correlation of local lightning activity with extra low frequency detector for Schumann Resonance measurements. Sci Total Environ 2021; 787:147671. [PMID: 34004542 DOI: 10.1016/j.scitotenv.2021.147671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 05/05/2021] [Accepted: 05/06/2021] [Indexed: 06/12/2023]
Abstract
A dedicated extremely low frequency (ELF) detector has been constructed and used successfully for Schumann Resonance (SRs) measurements in N.W. Greece. The main objective of this work was to investigate the effect of local lightning activity on the signal of our ELF detector and consequently on the estimated SRs parameters, namely the power, the frequency and the quality factor of each mode. Therefore, several measurements were taken into account for the ELF signal continuously recorded and the lightning intensity in a specific range around the ELF detector. Additionally, a simple filtering technique was used, in order to reject the distorted SRs spectra. The statistical analysis performed showed a positive and statistically significant correlation between the lightning events and the recorded magnetic component of the ELF signal. It was found that local lightnings have a significant impact on the SRs measurements, and it is necessary to be removed from the background signal.
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Affiliation(s)
- G Tatsis
- Electronics-Telecommunications and Applications Laboratory, Physics Department, University of Ioannina, Ioannina, Greece
| | - A Sakkas
- Electronics-Telecommunications and Applications Laboratory, Physics Department, University of Ioannina, Ioannina, Greece
| | - V Christofilakis
- Electronics-Telecommunications and Applications Laboratory, Physics Department, University of Ioannina, Ioannina, Greece
| | - G Baldoumas
- Electronics-Telecommunications and Applications Laboratory, Physics Department, University of Ioannina, Ioannina, Greece
| | - S K Chronopoulos
- Electronics-Telecommunications and Applications Laboratory, Physics Department, University of Ioannina, Ioannina, Greece
| | - A K Paschalidou
- Department of Forestry and Management of the Environmental and Natural Resources, Democritus University of Thrace, Orestiada, Greece
| | - P Kassomenos
- Laboratory of Meteorology, Physics Department, University of Ioannina, Ioannina, Greece.
| | - I Petrou
- Laboratory of Meteorology, Physics Department, University of Ioannina, Ioannina, Greece
| | - P Kostarakis
- Electronics-Telecommunications and Applications Laboratory, Physics Department, University of Ioannina, Ioannina, Greece
| | - C Repapis
- Mariolopoulos-Kanaginis Foundation for the Environmental Research, Athens, Greece
| | - V Tritakis
- Mariolopoulos-Kanaginis Foundation for the Environmental Research, Athens, Greece; Research Center for Astronomy and Applied Mathematics, Academy of Athens, Greece
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