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Equivalent Monopole Source of the Geomagnetic South Atlantic Anomaly

Pure and Applied Geophysics, 2009
The South Atlantic magnetic Anomaly (SAA) is an important feature of the present geomagnetic field. In this paper we model the space–time evolution of this anomaly over the past 400 years in terms of the resultant between a decrease of a global axial dipole and an increase of a virtual local monopole source.
Angelo De Santis, Enkelejda Qamili
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Atmospheric cosmic rays in the South Atlantic anomaly region

Il Nuovo Cimento C, 1991
To study the production and propagation of fast secondaries particles in the atmosphere, data collected during eleven quiet-time balloon flights are analysed. Comparisons of these data with those obtained in different geomagnetic rigidity regions permit to estimate the contributions of the proton and electron components in the measured intensities ...
Van Bui, N. A. +4 more
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South Atlantic Anomaly Evolution Seen by the Proton Flux

Journal of Geophysical Research: Space Physics
AbstractThe SEM‐2 (Space Environment Monitor‐2) instrument embedded on the NOAA‐15 Low Earth Orbit satellite provides measurements of trapped protons in the Van Allen inner belt from 1998 to nowadays. This continuous set of measurements enables us to study the dynamics of the South Atlantic Anomaly (SAA) over more than two solar cycles, particularly ...
F. Ginisty +7 more
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Pc5 Pulsations in the South Atlantic Magnetic Anomaly