Journal cover Journal topic
Annales Geophysicae An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

Journal metrics

  • IF value: 1.490 IF 1.490
  • IF 5-year value: 1.445 IF 5-year
    1.445
  • CiteScore value: 2.9 CiteScore
    2.9
  • SNIP value: 0.789 SNIP 0.789
  • IPP value: 1.48 IPP 1.48
  • SJR value: 0.74 SJR 0.74
  • Scimago H <br class='hide-on-tablet hide-on-mobile'>index value: 88 Scimago H
    index 88
  • h5-index value: 21 h5-index 21
Volume 29, issue 11
Ann. Geophys., 29, 1977–1984, 2011
https://doi.org/10.5194/angeo-29-1977-2011
© Author(s) 2011. This work is distributed under
the Creative Commons Attribution 3.0 License.
Ann. Geophys., 29, 1977–1984, 2011
https://doi.org/10.5194/angeo-29-1977-2011
© Author(s) 2011. This work is distributed under
the Creative Commons Attribution 3.0 License.

Regular paper 02 Nov 2011

Regular paper | 02 Nov 2011

Global observation of 24 November 2006 Pc5 pulsations by single mid-latitude underground [SQUID]2 system

J. Marfaing1, E. Pozzo di Borgo2, G. Waysand3, A. Cavaillou3, and M. Parrot4 J. Marfaing et al.
  • 1Université d'Aix-Marseille, IM2NP-UMR 6242 CNRS, case 142, Faculté des Sciences de Saint Jérôme, 13397 Marseille cedex 20, France
  • 2Université d'Avignon et des Pays de Vaucluse, UMR 1114 INRA-UAPV EMMAH, rue Louis Pasteur 84000 Avignon, France
  • 3Université de Nice Sophia-Antipolis, Observatoire de la Côte d'Azur, Laboratoire Souterrain Bas Bruit de Rustrel-Pays d'Apt (LSBB), La Grande Combe 84400 Rustrel, France
  • 4CNRS and Université d'Orléans, LPC2E, 3A, Avenue de la Recherche Scientifique, 45071 Orléans cedex 2, France

Abstract. On 24 November 2006, simultaneous observations of Pc5 pulsations, electron precipitation and whistler-mode chorus, as well as solar wind and IMF parameters have been analyzed based on data from IMAGE magnetometers, riometer array and temporal VLF station. This paper focuses on the Pc5 pulsations detected at the same time, in the 1–25 millihertz range, by the [SQUID]2 system (SQUID magnetometer within a Shielding QUalified for Ionosphere Detection) installed 518 m underground at 43.92° N, 5.48° E. As expected, the 3-D-frequency spectrum of these mid-latitude [SQUID]2 signals exhibits frequency peaks quasi identical to those observed by polar stations of close geomagnetic longitude. The signal/noise ratio allows the observation of the wave polarization and the beatings of the frequencies. As a result, the possibility of studying, at mid-latitude, magnetic Pc5 pulsations linked with an event in the magnetosphere can improve the description of both behaviour and propagation of these waves.

Publications Copernicus
Download
Citation