Abstract
ELSEWHERE1,2 I have examined joule heating of the upper atmosphere by those ionospheric electric currents which cause geomagnetic disturbance. Some further consequences were recently reported3. It is the purpose of the present communication to point out that in regions of the auroral ionosphere above about 150 km. altitude the scale height may increase 5- to 10-fold during geomagnetic disturbance. This would cause population of the exosphere to great heights with ionospheric gases and even loss of a portion of such gases to the interplanetary medium.
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COLE, K. Atmospheric Blow-up at the Auroral Zone. Nature 194, 761 (1962). https://doi.org/10.1038/194761a0
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DOI: https://doi.org/10.1038/194761a0
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