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Title: Background solar wind modeling and its relevance for the propagation of interplanetary coronal mass ejections
Authors: GRESSL, C. (UNIGRAZ); VERONIG, A. (UNIGRAZ); ROTTER, T. (UNIGRAZ); TEMMER, M. (UNIGRAZ); ROLLETT, T. (UNIGRAZ); VRSNAK, B. (HVAR); MöSTL, C. (UNIGRAZ); ODSTRCIL, D. (GMU)
Abstract: The background solar wind (SW) characteristic is a key ingredient for the study of CME propagation in interplanetary (IP) space, in particular for the prediction of interplanetary coronal mass ejection (ICME) arrival time and arrival speed at Earth. Since in-situ measurements of the background solar wind are only available at 1 AU, one has to rely on heliospheric models and/or empirical relationships to derive the SW distribution in IP space. We tested different empirical and MHD models to predict the SW characteristics at 1 AU, including MAS/MAS, MAS/ENLIL, WSA/ENLIL, and an empirical model based on the size and location of coronal holes (CH) on the Sun. The modeled SW parameters were compared with in-situ measurements from ACE and Wind at 1 AU for a year of low ICME activity during the last solar minimum.
Insert date: 2013 Feb 14
Uploader: cgressl (880)
Topics:
solar wind
CME
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File: space_weather_week_2012.pdf (3369 KB)