Abstract
WE present here a report on the changes with longitude of the total ionospheric electron content (TEC) found in the region known as the South Atlantic Geomagnetic Anomaly (SAGA). These have been investigated by measurements of the phase delays of the modulation of transmissions from the ATS-6 radio beacon1,2. The ATS-6 geostationary satellite moved from a position of 94°W to 34°E, between May 23 and June 21, 1975, thus providing the opportunity to investigate this longitude dependence.
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KAUFMANN, P., PIAZZA, L., MASSAMBANI, O. et al. Longitudinal dependence of ionospheric total electron content in the South Atlantic Geomagnetic Anomaly. Nature 261, 677–679 (1976). https://doi.org/10.1038/261677a0
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DOI: https://doi.org/10.1038/261677a0
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