Development of an improved geomagnetic reference field of Antarctica

A. De Santis, M. Chiappini, J. M. Torta, R. R. B. von Frese

Abstract


The properties of the Earth's core magnetic field and its secular variation are poorly known for the Antarctic. The increasing availability of magnetic observations from airborne and satellite surveys, as well as the existence of several magnetic observatories and repeat stations in this region, offer the promise of greatly improving our understanding of the Antarctic core field. We investigate the possible development of a Laplacian reference model of the core field from these observations using spherical cap harmonic analysis. Possible uses and advantages of this approach relative to the implementations of the standard global reference field are also considered.

Keywords


Geomagnetic reference field;spherical cap harmonics;polar regions

Full Text:

PDF

References


DOI: https://doi.org/10.4401/ag-3721
We use cookies to ensure that we give you the best experience on our website. If you continue to use this site we will assume that you are happy with it (Read more).
Ok


Published by INGV, Istituto Nazionale di Geofisica e Vulcanologia - ISSN: 2037-416X