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Haraldson, Stig (2011)
Publisher: Co-Action Publishing
Journal: Tellus A
Languages: English
Types: Article
Subjects:
The article presents an investigation of VLF-oscillations (0.2–200 c/s) in the earth's magnetic field. The measurements were made in the archipelago of Stockholm (59° N) during the period July 1957—June 1959. The oscillations were recorded by two different instruments: a high-speed Heiland oscillograph and a low-speed Esterline-Angus recorder. In the Esterline-Angus diagrams a morning minimum at about 8 o'clock local time was found. In the Heiland oscillograms three different features were found: 1. Frequent occurrence of sinusoidal fluctuations presenting a few very narrow bands; 2. Oscillations in the H- and Z-component are sometimes simultaneous, sometimes not; 3. The amplitudes in the Z-component are smaller than in the H-component. It has not been possible to find a correlation between the fluctuations investigated here and other geophysical phenomena. A possible mechanism for generation of the sinusoidal oscillations is discussed.DOI: 10.1111/j.2153-3490.1961.tb00105.x
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

    • AARONSJ,., 1951: Low-Frequency Noise Disturbance, Proc. A m . Acad. Arts and Sc., 79, p. 266.
    • AARONSJ., and HENISSARMT,., 1953: Low Frequency Noise in the Range 0.5-20 c/s, Nature, 171, p. 682.
    • - 1956: Low-frequency Electromagnetic 1-00 c/s, J. Geophys. Res. 61, p. 647.
    • AARONSJ,., 1954: Doctoral Thesis, University of Paris.
    • AARONSJ... GUSTAFSSONG,. and ECELANDA, ,, 1960: Correlation of Audio-Frequency Electro-magnetic Radiation with Auroral Zone Micropulsations. Nature, 185,p. 148.
    • - 1960: Audio-Frequency Electromagnetic Radiation in the Auroral Zone, J. Geophys. Res. 65. p. 2749.
    • ECBLANDA,., 1959: Report No. 6. lnst. of Theoret. Astrophysics, Blindern, Oslo.
    • LEHNERTB.., 1956: Magneto-hydrodynamic Waves in the Ionosphere and their Application to Giant Pulsations, Tellus, 8,p. 241.
    • - 1959: Plasma Physics on Cosmical and Laboratory Scale, Nuovo Cimento, Suppl. XIII, Ser. X.
    • MAPLEE,., 1960: Sub-audio-fiequency (I to 50 c/s) Geomagnetic Fluctuutions, presented at the Geophysical Conference, Helsinki, July-August 1960.
    • MENZEL and SALISBURY.1948:Audio Frequency Radio Waves from the Sun, Nature, 161.p. 91.
    • WILLIS.H., 1948:Audio Frequency Magnetic Fluctuations, Nature, 161, p. 887.
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