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Meteoric ion layers in the ionospheres of venus and mars: Early observations and consideration of the role of meteor showers

Christou, A. A.; Withers, Paul; Vaubaillon, J.

Layers of metal ions produced by meteoroid ablation have been known in Earth's ionosphere for decades, but have only recently been discovered at Venus and Mars. Here we report the results of a search for meteoric layers in earlier datasets from Venus and Mars. We find 13 candidates at Venus in Mariner 10, Venera 9/10, and Pioneer Venus Orbiter dat…