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Annales Geophysicae An interactive open-access journal of the European Geosciences Union
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Volume 24, issue 11
Ann. Geophys., 24, 3173–3177, 2006
https://doi.org/10.5194/angeo-24-3173-2006
© Author(s) 2006. This work is distributed under
the Creative Commons Attribution 3.0 License.
Ann. Geophys., 24, 3173–3177, 2006
https://doi.org/10.5194/angeo-24-3173-2006
© Author(s) 2006. This work is distributed under
the Creative Commons Attribution 3.0 License.

  22 Nov 2006

22 Nov 2006

Multiple triangulation analysis: application to determine the velocity of 2-D structures

X.-Z. Zhou1,2, Q.-G. Zong2,3, J. Wang1, Z. Y. Pu1, X. G. Zhang1, Q. Q. Shi2, and J. B. Cao2 X.-Z. Zhou et al.
  • 1Institute of Space Physics and Applied Technology, Peking University, Beijing 100871, China
  • 2Key Laboratory for Space Weather, Chinese Academy of Sciences, Beijing 100080, China
  • 3Center for Atmospheric Research, University of Massachusetts, Lowell, MA 01854, USA

Abstract. In order to avoid the ambiguity of the application of the Triangulation Method (multi-spacecraft timing method) to two-dimensional structures, another version of this method, the Multiple Triangulation Analysis (MTA) is used, to calculate the velocities of these structures based on 4-point measurements. We describe the principle of MTA and apply this approach to a real event observed by the Cluster constellation on 2 October 2003. The resulting velocity of the 2-D structure agrees with the ones obtained by some other methods fairly well. So we believe that MTA is a reliable version of the Triangulation Method for 2-D structures, and thus provides us a new way to describe their motion.

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