Bottom-up control of geomagnetic secular variation by the Earth’s inner core

Abstract

Temporal changes in the Earth’s magnetic field, known as geomagnetic secular variation, occur most prominently at low latitudes in the Atlantic hemisphere (that is, from −90 degrees east to 90 degrees east), whereas in the Pacific hemisphere there is comparatively little activity. This is a consequence of the geographical localization of intense, westward… (More)
DOI: 10.1038/nature12574

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