Atomic and molecular ion dynamics during equatorial spread F

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Abstract

[1] The first simulation study of atomic and molecular ion dynamics during equatorial spread F (ESF) is presented. The simulation results are based on the Naval Research Laboratory (NRL) SAMI3/ESF three-dimensional code. The key findings are the following: (1) a 'super fountain' effect can occur in the initial stage of ESF with upward ion velocities ∼1 km/s, (2) plasma depletions can be enhanced by the 'drainage' of H+ ions along the geomagnetic field, and (3) molecular ions (e.g., NO+) can be 'lifted' to high altitudes (≥400 km). We compare these results with satellite observations where applicable. Copyright 2009 by the American Geophysical Union.

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Huba, J. D., Krall, J., & Joyce, G. (2009). Atomic and molecular ion dynamics during equatorial spread F. Geophysical Research Letters, 36(10). https://doi.org/10.1029/2009GL037675

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