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ULF wave magnetic measurements by CHAMP satellite and SEGMA ground magnetometer array: Case study of July 6, 2002

  • Massimo Vellante
  • , Hermann Lühr
  • , Tie Long Zhang
  • , Viktor Wesztergom
  • , Umberto Villante
  • , Marcello De Lauretis
  • , Andrea Piancatelli
  • , Martin Rother
  • , Konrad Schwingenschuh
  • , Wolfgang Koren
  • , Werner Magnes
  • University of L'Aquila
  • Helmholtz Centre Potsdam - German Research Centre for Geosciences
  • Austrian Academy of Sciences
  • Research Centre For Astronomy and Earth Sciences

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

We present the analysis of a Pc 3 geomagnetic pulsation event observed simultaneously by CHAMP and by the South European GeoMagnetic Array SEGMA (1.56 < L < 1.88) during the conjunction of July 6, 2002. Both compressional and transverse oscillations were identified in CHAMP magnetic measurements. A close correspondence between the compressional component and the ground signals is observed. At the same time the joint analysis of space and ground observations clearly indicates the occurrence of a field line resonance at L 1.6. A direct confirmation of the well known 90° rotation of the ULF wave polarization ellipse through the ionosphere is also provided.

Original languageEnglish
Title of host publicationEarth Observation with CHAMP
Subtitle of host publicationResults from Three Years in Orbit
PublisherSpringer Berlin Heidelberg
Pages395-400
Number of pages6
ISBN (Print)9783540228042
DOIs
StatePublished - 2005
Externally publishedYes

Keywords

  • Magnetosphere/ionosphere interaction
  • ULF waves
  • field line resonance

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