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| Titel |
Calculation of CME kinematics and propagation directions by constraining STEREO HI-images with in situ signatures at 1 AU |
| VerfasserIn |
T. Rollett, C. Möstl, M. Temmer, A. M. Veronig, C. J. Farrugia, H. K. Biernat |
| Konferenz |
EGU General Assembly 2012
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 14 (2012) |
| Datensatznummer |
250062693
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| Zusammenfassung |
| We present a new approach to combine remote observations and in situ measurements by
STEREO/HI and Wind, respectively, to derive the kinematics and propagation directions of
interplanetary coronal mass ejections (ICMEs). We use two methods, Fixed-Phi and
Harmonic Mean, to convert ICME elongations into distance. The ICME direction is
constrained such that the ICME distance-time and speed-time profiles are most consistent
with in situ measurements of the arrival time and speed at 1 AU. These methods
are applied to two ICME events of 02 – 06 June 2008 and 13 – 18 February 2009.
Due to the geometrical assumptions HM delivers the propagation direction further
away from the observing spacecraft with a mean difference of 25°. This work has
received funding from the European Commission FP7 Project COMESEP (263252). |
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