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

Journal metrics

Journal metrics

  • IF value: 1.621 IF 1.621
  • IF 5-year value: 1.614 IF 5-year
    1.614
  • CiteScore value: 1.61 CiteScore
    1.61
  • SNIP value: 0.900 SNIP 0.900
  • IPP value: 1.58 IPP 1.58
  • SJR value: 0.910 SJR 0.910
  • Scimago H <br class='hide-on-tablet hide-on-mobile'>index value: 80 Scimago H
    index 80
  • h5-index value: 24 h5-index 24
Volume 27, issue 3
Ann. Geophys., 27, 913-921, 2009
https://doi.org/10.5194/angeo-27-913-2009
© Author(s) 2009. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: STAMMS: Spatio-Temporal Analysis and Multipoint Measurements...

Ann. Geophys., 27, 913-921, 2009
https://doi.org/10.5194/angeo-27-913-2009
© Author(s) 2009. This work is distributed under
the Creative Commons Attribution 3.0 License.

  02 Mar 2009

02 Mar 2009

Remote sensing of local structure of the quasi-perpendicular Earth's bow shock by using field-aligned beams

B. Miao1, H. Kucharek1, E. Möbius1, C. Mouikis1, H. Matsui1, Y. C.-M. Liu1, and E. A. Lucek2 B. Miao et al.
  • 1Dept. of Physics and Institute for the Study of Earth, Oceans and Space, University of New Hampshire, Durham, NH, USA
  • 2Space and Atmospheric Physics, Imperial College, London, SW7 2BZ, UK

Abstract. Field-aligned ion beams (FABs) originate at the quasi-perpendicular Earth's bow shock and constitute an important ion population in the foreshock region. The bulk velocity of these FABs depends significantly on the shock normal angle, which is the angle between shock normal and upstream interplanetary magnetic field (IMF). This dependency may therefore be taken as an indicator of the local structure of the shock. Applying the direct reflection model to Cluster measurements, we have developed a method that uses proton FABs in the foreshock region for remote sensing of the local shock structure. The comparison of the model results with the multi-spacecraft observations of FAB events shows very good agreement in terms of wave amplitude and frequency of surface waves at the shock front.

Publications Copernicus
Special issue
Download
Citation
Share