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Volume 9, issue 2
Solid Earth, 9, 491–503, 2018
https://doi.org/10.5194/se-9-491-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Solid Earth, 9, 491–503, 2018
https://doi.org/10.5194/se-9-491-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 25 Apr 2018

Research article | 25 Apr 2018

Geomagnetic field declination: from decadal to centennial scales

Venera Dobrica et al.

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Cited articles

Abarco del Rio, R., Gambis, D., and Salstein, D. A.: Interannual signals in length of day and atmospheric angular momentum, Ann. Geophys., 18, 347–364, https://doi.org/10.1007/s00585-000-0347-9, 2000.
Alexandrescu, M., Courtillot, V., and Le Mouël, J. -L.: Geomagnetic field direction in Paris since the mid-sixteenth century, Phys. Earth Planet. Inter., 98, 321–360, 1996.
Alexandrescu, M., Courtillot, V., and Le Mouël, J. -L.: High resolution secular variation of geomagnetic field in Western Europe over the last 4 centuries: comparison and integration of historical data from Paris and London, J. Geophys. Res., 102, 20245–20258, 1997.
Alldredge, L. R.: Geomagnetic variations with periods from 13 to 30 years, J. Geomagn. Geoelectr., 29, 123–135, 1977.
Alldredge, L. R.: A discussion of impulses and jerks in the geomagnetic field, J. Geophys. Res., 86, 7957–7965, 1984.
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By analyzing frequency constituents of declination secular variation at inter-decadal and sub-centennial timescales from geomagnetic observatories with data longer than 1 century and several historical data sets, we suggest that the geomagnetic jerk concept should be considered as a more general notion, namely the evolution of the secular variation as a result of the superposition of two (or more) constituents describing the effects of processes in the Earth’s core at two (or more) timescales.
By analyzing frequency constituents of declination secular variation at inter-decadal and...
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