A fast-moving feature of westward drift

D. R. Barraclough, S. R. C. Malin

Abstract


he dominant feature in the magnetic declination record at all European sites for which adequate data are available is a minimum between 1750 and 1860. The time of minimum at different sites correlates well with longitude and implies a westward drift rate of 0.61 ± 0.08° yr-1. This is greatly in excess of the widely adopted value of 0.18° yr-1 for global westward drift.

Keywords


Geomagnetic field;westward drift

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References


DOI: https://doi.org/10.4401/ag-3696
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Published by INGV, Istituto Nazionale di Geofisica e Vulcanologia - ISSN: 2037-416X