Open AccessDiurnal variations of Schumann resonance frequency in NS and EW magnetic components
Author(s) -
Roldugin V. C.,
Maltsev Y. P.,
Vasiljev A. N.,
Schokotov A. Y.,
Belyajev G. G.
Publication year - 2004
Publication title -
journal of geophysical research: space physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.67
H-Index - 298
eISSN - 2156-2202
pISSN - 0148-0227
DOI - 10.1029/2004ja010487
Subject(s) - schumann resonances , diurnal temperature variation , variation (astronomy) , resonance (particle physics) , harmonics , magnetometer , maxima , physics , geology , nuclear magnetic resonance , atmospheric sciences , geophysics , ionosphere , astrophysics , magnetic field , atomic physics , voltage , quantum mechanics , art , performance art , art history
The diurnal variation of the frequency of the first Schumann resonance mode has been studied from three ELF observation sites located at Spitsbergen, the Kola Peninsula, and the Kamchatka Peninsula. The induction magnetometer measured ELF separately in two components: NS (north‐south) and EW (east‐west). The frequency variation is 0.2–0.3 Hz at all the observatories. The semidiurnal harmonics dominate in the frequency variation. The variation seems to be controlled by the local time (LT) rather than by the universal time (UT). The frequency of the NS component has maxima approximately at 0700 and 1900 LT. The diurnal variation of the frequency of the EW component reveals the antiphase behavior so that the maximum in the EW component frequency occurs at ∼0100 and 1300 LT.