Open AccessDevelopment of an improved geomagnetic reference field of Antarctica
Author(s) -
Angelo De Santis,
M. Chiappini,
J. M. Torta,
Ralph R. B. von Frese
Publication year - 1999
Publication title -
annals of geophysics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 60
eISSN - 2037-416X
pISSN - 1593-5213
DOI - 10.4401/ag-3721
Subject(s) - earth's magnetic field , secular variation , geophysics , geology , spherical harmonics , core (optical fiber) , field (mathematics) , satellite , geodesy , magnetic field , remote sensing , physics , astronomy , mathematics , quantum mechanics , pure mathematics , optics
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