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handle: 10261/190206
[ES] Se presenta un modelo muy simple de campo magnético terrestre basado en una partícula browniana con inercia afectada por un ruido térmico gaussiano y sometida a un potencial con dos pozos simétricos. La posición de la partícula representa el momento dipolar axial del campo magnético terrestre de forma que éste presenta oscilaciones estocásticas en torno a los mínimos de potencial y siendo posible que la partícula salte de un pozo a otro, lo que representa una inversión del campo. Se analizan los resultados del modelo y se comparan sus características con el comportamiento del campo magnético en escalas de millones de años.
[EN] We present a simple model of Earth magnetic field based on a Brownian particle with inertia affected by a Gaussian thermal noise and under the action of a symmetric double-well potential. The position of the particle represents the axial dipole moment of geomagnetic field so that it shows stochastic oscillations around potential minima, being possible that the particle jumps from one well to the other, which represents a geomagnetic reversal. We analyse model results and compare its characteristics with the geomagnetic field behaviour in scales about millions of years.
Trabajo presentado en el 9ª Asamblea Hispano Portuguesa de Geodesia y Geofísica, celebrada en Madrid (España), del 28 al 30 de junio de 2016
Peer reviewed
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