Graphical Schemes Designed to Display and Study the Long-term Variations of Schumann Resonance

Graphical Schemes Designed to Display and Study the Long-term Variations of Schumann Resonance. Rodríguez-Camacho, J., Lopera, J. F. G., Salinas, A., Fornieles-Callejón, J., PortÍ, J., Blanco-Navarro, D., Carrión, M. C., & Camba, E. N. In 2019 27th European Signal Processing Conference (EUSIPCO), pages 1-5, Sep., 2019.

Paper doi abstract bibtex

This work proposes and illustrates a graphical approach aimed at studying a wide range of features of the ELF horizontal magnetic field signal recorded at the Sierra Nevada station (Spain). In addition to the traditional long-term variations in the parameters of the first three Schumann resonances (their amplitudes, central frequencies and widths), many other properties such as the saturations of the magnetometers, anomalous values for the parameters or spectra with any kind of particularities are taken into consideration in this work. These features can provide us with complementary information about the long-term variation of Schumann resonances, give an estimation of the extent up to which the results obtained are reliable and be correlated with the occurrence of lightning events or with changes in the electrical properties of the ionosphere. The scheme proposed in this work allows to instantaneously display the variations of all these features within a desired period of time.

@InProceedings{8903030,
  author = {J. Rodríguez-Camacho and J. F. G. Lopera and A. Salinas and J. Fornieles-Callejón and J. PortÍ and D. Blanco-Navarro and M. C. Carrión and E. N. Camba},
  booktitle = {2019 27th European Signal Processing Conference (EUSIPCO)},
  title = {Graphical Schemes Designed to Display and Study the Long-term Variations of Schumann Resonance},
  year = {2019},
  pages = {1-5},
  abstract = {This work proposes and illustrates a graphical approach aimed at studying a wide range of features of the ELF horizontal magnetic field signal recorded at the Sierra Nevada station (Spain). In addition to the traditional long-term variations in the parameters of the first three Schumann resonances (their amplitudes, central frequencies and widths), many other properties such as the saturations of the magnetometers, anomalous values for the parameters or spectra with any kind of particularities are taken into consideration in this work. These features can provide us with complementary information about the long-term variation of Schumann resonances, give an estimation of the extent up to which the results obtained are reliable and be correlated with the occurrence of lightning events or with changes in the electrical properties of the ionosphere. The scheme proposed in this work allows to instantaneously display the variations of all these features within a desired period of time.},
  keywords = {graph theory;ionospheric electromagnetic wave propagation;magnetic fields;radiowave propagation;signal processing;long-term variation;Schumann resonance;central frequencies;graphical schemes;graphical approach;ELF horizontal magnetic field signal;Sierra Nevada station;lightning events;electrical properties;magnetometer saturation;ionosphere;Resonant frequency;Magnetometers;Lightning;Ground penetrating radar;Geophysical measurement techniques;Signal processing;Time-frequency analysis;Schumann resonance;signal processing;ELF transient events},
  doi = {10.23919/EUSIPCO.2019.8903030},
  issn = {2076-1465},
  month = {Sep.},
  url = {https://www.eurasip.org/proceedings/eusipco/eusipco2019/proceedings/papers/1570533504.pdf},
}

Downloads: 0