Skip to main content
×
×
Home

Regularities of the IMF Sector Structure in the Last 170 Years

  • Mikhail V. Vokhmyanin (a1), Nadezhda V. Zolotova (a1) and Dmitry I. Ponyavin (a1)
Abstract

The interplanetary magnetic field (IMF) controls magnetospheric currents which cause variations of the ground-based magnetic field. Regular magnetic observations made in the 19th century allow us to infer daily IMF polarities back to 1844. The results coincide with satellite data in about 79% days. Moreover, for the most part of the 19th and 20th centuries, proxies obtained from various geomagnetic data (Helsinki, Saint-Petersburg, Potsdam, and Ekaterinburg) show the same patterns. This suggests that the reliability of the proxies is sufficient to study the IMF in the past. The large-scale organization of the IMF polarities, the so-called sector structure, reveals semi-centennial north-south displacements of the heliospheric current sheet (HCS).

Copyright
References
Hide All
Rosenberg, R. L. & Coleman, P. J. 1969, J. Geophys. Res., 74, 5611
Crooker, N. U., Lazarus, A. J., Phillips, J. L., Steinberg, J. T., Szabo, A., Lepping, R. P. & Smith, E. J. 1997, J. Geophys. Res., 102, 4673
Smith, E. J., Jokipii, J. R., Kota, J., Lepping, R. P. & Szabo, A. 2000, ApJ, 533, 1084
Echer, E. & Svalgaard, L. 2004, Geoph. Res. Lett., 31, L12808
Hiltula, T. & Mursula, K. 2006, Geophys. Res. Lett., 33, L03105
Hiltula, T. & Mursula, K. 2007, Adv. Sp. Res., 40, 1054
Svalgaard, L. 1972, J. Geophys. Res., 77, 4027
Mansurov, S. M. 1969, Geomagn. Aeron., 9, 622
Vennerstroem, S., Zieger, B. & Friis-Christensen, E. 2001, J. Geophys. Res., 106, 16011
Vokhmyanin, M. V. & Ponyavin, D. I. 2016, J. Geophys. Res., 121, 11943
Vennerstrom, S., Friis-Christensen, E., Olsen, N. & Moretto, T. 2007, Geophys. Res. Lett., 34, L16101
Vokhmyanin, M. V. & Ponyavin, D. I. 2013, Geophys. Res. Lett., 40, 3512
Verma, V. K. 1993, ApJ, 403, 797
Zhang, L., Mursula, K. & Usoskin, I. 2013, A&A, 552, A84
Pulkkinen, P. & Tuominen, I. 1998, A&A, 760, 755
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Proceedings of the International Astronomical Union
  • ISSN: 1743-9213
  • EISSN: 1743-9221
  • URL: /core/journals/proceedings-of-the-international-astronomical-union
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Keywords

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed