Evidence for a new geomagnetic jerk in 2014

J. Miquel Torta, Francisco Javier Pavón-Carrasco, Santiago Marsal, Chris Finlay

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The production of quasi-definitive data at Ebre observatory has enabled us to detect a new geomagnetic jerk in early 2014. This has been confirmed by analyzing data at several observatories in the European-African and Western Pacific-Australian sectors in the classical fashion of looking for the characteristic V shape of the geomagnetic secular variation trend. A global model produced with the latest available satellite and observatory data supports these findings, giving a global perspective on both the jerk and a related secular acceleration pulse at the core-mantle boundary. We conclude that the jerk was most visible in the Atlantic and European sectors.
Original languageEnglish
JournalGeophysical Research Letters
Volume42
Issue number19
Pages (from-to)7933-7940
Number of pages8
ISSN0094-8276
DOIs
Publication statusPublished - 2015

Cite this

Torta, J. Miquel ; Pavón-Carrasco, Francisco Javier ; Marsal, Santiago ; Finlay, Chris. / Evidence for a new geomagnetic jerk in 2014. In: Geophysical Research Letters. 2015 ; Vol. 42, No. 19. pp. 7933-7940.
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Torta, JM, Pavón-Carrasco, FJ, Marsal, S & Finlay, C 2015, 'Evidence for a new geomagnetic jerk in 2014', Geophysical Research Letters, vol. 42, no. 19, pp. 7933-7940. https://doi.org/10.1002/2015gl065501

Evidence for a new geomagnetic jerk in 2014. / Torta, J. Miquel; Pavón-Carrasco, Francisco Javier; Marsal, Santiago; Finlay, Chris.

In: Geophysical Research Letters, Vol. 42, No. 19, 2015, p. 7933-7940.

Research output: Contribution to journalJournal articleResearchpeer-review

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AU - Torta, J. Miquel

AU - Pavón-Carrasco, Francisco Javier

AU - Marsal, Santiago

AU - Finlay, Chris

PY - 2015

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N2 - The production of quasi-definitive data at Ebre observatory has enabled us to detect a new geomagnetic jerk in early 2014. This has been confirmed by analyzing data at several observatories in the European-African and Western Pacific-Australian sectors in the classical fashion of looking for the characteristic V shape of the geomagnetic secular variation trend. A global model produced with the latest available satellite and observatory data supports these findings, giving a global perspective on both the jerk and a related secular acceleration pulse at the core-mantle boundary. We conclude that the jerk was most visible in the Atlantic and European sectors.

AB - The production of quasi-definitive data at Ebre observatory has enabled us to detect a new geomagnetic jerk in early 2014. This has been confirmed by analyzing data at several observatories in the European-African and Western Pacific-Australian sectors in the classical fashion of looking for the characteristic V shape of the geomagnetic secular variation trend. A global model produced with the latest available satellite and observatory data supports these findings, giving a global perspective on both the jerk and a related secular acceleration pulse at the core-mantle boundary. We conclude that the jerk was most visible in the Atlantic and European sectors.

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