Fluid motions in the Earth's core inferred from time spectral features of the geomagnetic field (Articolo in rivista)

Type
Label
  • Fluid motions in the Earth's core inferred from time spectral features of the geomagnetic field (Articolo in rivista) (literal)
Anno
  • 2002-01-01T00:00:00+01:00 (literal)
Alternative label
  • Consolini G., De Michelis P., Meloni A. (2002)
    Fluid motions in the Earth's core inferred from time spectral features of the geomagnetic field
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Consolini G., De Michelis P., Meloni A. (literal)
Pagina inizio
  • 37303 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 65 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Titolo
  • Fluid motions in the Earth's core inferred from time spectral features of the geomagnetic field (literal)
Abstract
  • The aim of this work is to investigate the time spectral features of the main geomagnetic field fluctuations as measured on the Earth’s surface in connection with a nontraditional turbulent dynamics of the fluid motions in the outer layers of the Earth’s liquid core. The average geomagnetic field spectrum is found to be a power law, characterized by a spectral exponent alpha =11/3, on time scales longer than 5 yr. We discuss the spectral exponent in connection with an intense magnetic field in the Earth’s core and with a vortex coalescence process in a regime of drift-wave turbulence. (literal)

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