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Aeronomic effects of the South Atlantic anomaly

Journal Article · · Rev. Geophys. Space Phys.; (United States)
Experimental and theoretical values for precipitated electron and proton fluxes in the area of the South Atlantic geomagnetic anomaly are reviewed. Observations of airglow which have been reported in the literature suggest that there is no enhancement in the Brazilian region, though there may be some in the southeastern part of the Atlantic area. There is evidence from various types of observations that the electron density in the ionosphere is greater over the South Atlantic than at comparable places elsewhere, especially during magnetic disturbances, and similarly the ion density shows enhanced values. Electron and neutral temperatures may also be higher than normal in the anomalous region. Observations are required in all these fields, coordinated with particle flux measurements from rockets and satellites in the area, to confirm the reality of the effects and their relation to particle precipitation.
Research Organization:
Rhodes Univ., Grahamstown, South Africa
OSTI ID:
7155696
Journal Information:
Rev. Geophys. Space Phys.; (United States), Journal Name: Rev. Geophys. Space Phys.; (United States) Vol. 14:2; ISSN RGPSB
Country of Publication:
United States
Language:
English