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ANGEO | Articles | Volume 36, issue 4
Ann. Geophys., 36, 945–952, 2018
https://doi.org/10.5194/angeo-36-945-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Ann. Geophys., 36, 945–952, 2018
https://doi.org/10.5194/angeo-36-945-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

ANGEO Communicates 02 Jul 2018

ANGEO Communicates | 02 Jul 2018

Transfer entropy and cumulant-based cost as measures of nonlinear causal relationships in space plasmas: applications to Dst

Jay R. Johnson et al.
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Cited articles  
Baker, D. N., Zwickl, R. D., Bame, S. J., Hones, E. W., Tsurutani, B. T., Smith, E. J., and Akasofu, S.-I.: An ISEE 3 high time resolution study of interplanetary parameter correlations with magnetospheric activity, J. Geophys. Res., 88, 6230, https://doi.org/10.1029/ja088ia08p06230, 1983. a
Balasis, G., Papadimitriou, C., Daglis, I. A., Anastasiadis, A., Athanasopoulou, L., and Eftaxias, K.: Signatures of discrete scale invariance in Dst time series, Geophys. Res. Lett., 38, L13103, https://doi.org/10.1029/2011GL048019, 2011. a
Balikhin, M. A., Boynton, R. J., Walker, S. N., Borovsky, J. E., Billings, S. A., and Wei, H. L.: Using the NARMAX approach to model the evolution of energetic electrons fluxes at geostationary orbit, Geophys. Res. Lett., 38, L18105, https://doi.org/10.1029/2011GL048980, 2011. a
Bargatze, L. F., Baker, D. N., Hones, E. W., and McPherron, R. L.: Magnetospheric impulse response for many levels of geomagnetic activity, J. Geophys. Res., 90, 6387–6394, 1985. a
Borovsky, J. E., Thomsen, M. F., and Elphic, R. C.: The driving of the plasma sheet by the solar wind, J. Geophys. Res., 103, 17617–17640, https://doi.org/10.1029/97JA02986, 1998. a, b
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Short summary
The magnetospheric response to the solar wind is nonlinear. Information theoretical tools are able to characterize the nonlinearities in the system. We show that nonlinear significance of Dst peaks at lags of 3–12 hours which can be attributed to VBs, which also exhibits similar behavior. However, the nonlinear significance that peaks at lags of 25, 50, and 90 hours can be attributed to internal dynamics, which may be related to the relaxation of the ring current.
The magnetospheric response to the solar wind is nonlinear. Information theoretical tools are...
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