A three-dimensional self-consistent computer simulation of a geomagnetic field reversal
Abstract
A three-dimensional, self-consistent numerical model of the geodynamo is described, that maintains a magnetic field for over 40,000 years. The model, which incorporates a finitely conducting inner core, undergoes several polarity excursions and then, near the end of the simulation, a successful reversal of the dipole moment. This simulated magnetic field reversal shares some features with real reversals of the geomagnetic field, and may provide insight into the geomagnetic reversal mechanism.
- Publication:
-
Nature
- Pub Date:
- September 1995
- DOI:
- Bibcode:
- 1995Natur.377..203G