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On the Characteristics of Geomagnetic Storms Observed During the Past 415 Years

Published online by Cambridge University Press:  27 November 2018

V. G. Haritha
Affiliation:
Department of Physics, University College, Trivandrum 695034, India email: vgharithamanoj@gmail.com, kggopkumar@yahoo.com, tegirish5@yahoo.co.in
P. E. Eapen
Affiliation:
Department of Physics, S.G. College, Kottarakkara, Kerala, India email: peeapen@yahoo.co.in
G. Gopkumar
Affiliation:
Department of Physics, University College, Trivandrum 695034, India email: vgharithamanoj@gmail.com, kggopkumar@yahoo.com, tegirish5@yahoo.co.in
T. E. Girish
Affiliation:
Department of Physics, University College, Trivandrum 695034, India email: vgharithamanoj@gmail.com, kggopkumar@yahoo.com, tegirish5@yahoo.co.in
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Abstract

In this paper we will present our investigations on the characteristics of geomagnetic storms deduced from direct and proxy observations for the years 1601–2016 AD. We show that we could infer epoch of reversal of solar polar magnetic fields from geomagnetic data. Such an inference is done back to the 18th century using geomagnetic and Aurora observations. We could also infer secular changes in the intensity of geomagnetic storms for the past 415 years.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2018 

References

Angot, A. 1897, The Aurora Borealis, D. Appeleton Co, New YorkGoogle Scholar
Gopkumar, G. & Girish, T. E. 2010, arXiv:1011.4639 [phy-gen.phy]Google Scholar
Vazquez, M., Vaquero, J. M., Gallego, M. C., Cartes, T. R., & Palle, P. L., 2016, Sol. Phys., 291, 616642CrossRefGoogle Scholar
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