Annales Geophysicae
Annales Geophysicae
ANGEO
Articles | Volume 35, issue 4
Articles | Volume 35, issue 4
https://doi.org/10.5194/angeo-35-907-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/angeo-35-907-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 35, issue 4
Regular paper
 | 
01 Aug 2017
Regular paper |  | 01 Aug 2017

The impact on global magnetohydrodynamic simulations from varying initialisation methods: results from GUMICS-4

Antti Lakka, Tuija I. Pulkkinen, Andrew P. Dimmock, Adnane Osmane, Ilja Honkonen, Minna Palmroth, and Pekka Janhunen

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Short summary
We studied the impact on global MHD simulations from different simulation initialisation methods. While the global MHD code used is GUMICS-4 we conclude that the results might be generalisable to other codes as well. It is found that different initialisation methods affect the dynamics of the Earth's space environment by creating differences in momentum transport several hours afterwards. These differences may even grow as a response to rapid solar wind condition changes.
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