Articles | Volume 35, issue 6
Ann. Geophys., 35, 1269–1274, 2017
https://doi.org/10.5194/angeo-35-1269-2017
Ann. Geophys., 35, 1269–1274, 2017
https://doi.org/10.5194/angeo-35-1269-2017

ANGEO Communicates 28 Nov 2017

ANGEO Communicates | 28 Nov 2017

Tail reconnection in the global magnetospheric context: Vlasiator first results

Minna Palmroth et al.

Data sets

Preliminary testing of global hybrid- Vlasov simulation M. Palmroth, I. Honkonen, A. Sandroos, Y. Kempf, S. von Alfthan, and D. Pokhotelov: https://doi.org/10.1016/j.jastp.2012.09.013

ULF foreshock under radial IMF M. Palmroth, M. Archer, R. Vainio, H. Hietala, Y. Pfau-Kempf, S. Hoilijoki, O. Hannuksela, U. Ganse, A. Sandroos, S. von Alfthan, and J. Eastwood: https://doi.org/10.1002/2015JA021526

Vlasiator: First kinetic global hybrid-Vlasov simulation code for modelling space plasma S. von Alfthan, D. Pokhotelov, Y. Kempf, S. Hoilijoki, I. Honkonen, A. Sandroos, and M. Palmroth: https://doi.org/10.1016/jjastp.2014.08.012

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Short summary
Much like solar flares, substorms occurring within the Earth's magnetic domain are explosive events that cause vivid auroral displays. A decades-long debate exists to explain the substorm onset. We devise a simulation encompassing the entire near-Earth space and demonstrate that detailed modelling of magnetic reconnection explains the central substorm observations. Our results help to understand the unpredictable substorm process, which will significantly improve space weather forecasts.