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| Titel |
Validation of solar wind high-speed stream predictions |
| VerfasserIn |
Martin Reiss, Manuela Temmer, Astrid Veronig, Ljubomir Nikolic, Florian Schöngassner, Susanne Vennerstrøm |
| Konferenz |
EGU General Assembly 2016
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 18 (2016) |
| Datensatznummer |
250125085
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| Publikation (Nr.) |
 EGU/EGU2016-4615.pdf |
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| Zusammenfassung |
| Solar wind high-speed streams emanating from coronal holes are frequently impinging on the Earth's magnetosphere causing recurrent, medium-level geomagnetic storm activity. As major contributors to space weather disturbances at times of low solar activity, prediction models of solar wind high-speed streams are becoming highly desirable. We present a verification analysis of two operational solar wind prediction models (empirical model, Wang-Sheeley-Arge like model) by comparing the model runs for the period 2011 to 2014 with in-situ plasma measurements from the ACE spacecraft located at 1 AU. We find that both prediction models achieve a similar accuracy but demonstrate the tendency to under-predict and over-predict events of solar wind high-speed streams, respectively. General advantages and disadvantages of both models are diagnosed and outlined. |
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