Nonlinear Processes in Geophysics
Nonlinear Processes in Geophysics
NPG
Articles | Volume 27, issue 2
Articles | Volume 27, issue 2
https://doi.org/10.5194/npg-27-175-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/npg-27-175-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 27, issue 2
Research article
 | 
08 Apr 2020
Research article |  | 08 Apr 2020

Study of the fractality in a magnetohydrodynamic shell model forced by solar wind fluctuations

Macarena Domínguez, Giuseppina Nigro, Víctor Muñoz, Vincenzo Carbone, and Mario Riquelme

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Cited articles

Aschwanden, M. J. and Aschwanden, P. D.: Solar Flare Geometries. I. The Area Fractal Dimension, Astrophys. J., 674, 530–543, https://doi.org/10.1086/524371, 2008a. a, b
Aschwanden, M. J. and Aschwanden, P. D.: Solar Flare Geometries. II. The Volume Fractal Dimension, Astrophys. J., 674, 544–553, https://doi.org/10.1086/524370, 2008b. a
Balasis, G., Daglis, I. A., Kapiris, P., Mandea, M., Vassiliadis, D., and Eftaxias, K.: From pre-storm activity to magnetic storms: a transition described in terms of fractal dynamics, Ann. Geophys., 24, 3557–3567, https://doi.org/10.5194/angeo-24-3557-2006, 2006. a, b, c, d
Boffetta, G., Carbone, V., Giuliani, P., Veltri, P., and Vulpiani, A.: Power Laws in Solar Flares: Self-Organized Criticality or Turbulence?, Phys. Rev. Lett., 83, 4662–4665, https://doi.org/10.1103/PhysRevLett.83.4662, 1999. a, b
Burton, R. K., McPherron, R. L., and Russel, C. T.: An Empirical Relationship between Interplanetary Conditions and Dst, J. Geophys. Res., 80, 4204–4217, https://doi.org/10.1029/JA080i031p04204, 1975. a, b
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We study a model for the relationship between space plasma and geomagnetic activity, by using an MHD shell model, where its forcing has been replaced by solar wind fluctuation data. We study the fractality of the forcing, its output, and the activity of the model, which may represent the existence of geomagnetic storms. We find correlations between some of these metrics and the solar cycle, suggesting that the complexity of the solar wind may have influence on the level of geomagnetic activity.
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