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

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