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dc.contributor.authorHamil, O.
dc.contributor.authorCravens, T. E.
dc.contributor.authorRahmati, A.
dc.contributor.authorConnerney, J. E. P.
dc.contributor.authorAndersson, L.
dc.identifier.citationHamil, O., Cravens, T. E., Rahmati, A., Connerney, J. E. P., & Andersson, L. (2019). Pressure gradients driving ion transport in the topside Martian atmosphere. Journal of Geophysical Research: Space Physics, 124, 6117– 6126.
dc.descriptionAn edited version of this paper was published by AGU. Copyright 2019 American Geophysical Union.en_US
dc.description.abstractMagnetic and thermal pressure gradient forces drive plasma flow in the topside ionosphere of Mars. Some of this flow can contribute to ion loss from the planet and thus affect atmospheric evolution. MAVEN measurements of the magnetic field, electron density, and electron temperature, taken over a 3‐year time period, are used to obtain averaged magnetic and thermal pressures in the topside ionosphere versus altitude, solar zenith angle, and latitude. Magnetic pressures are several times greater than thermal pressures for altitudes greater than about 300 km; that is, the plasma beta is less than one. The total pressure increases with altitude in the ionosphere and decreases with increasing solar zenith angle. Using these pressure patterns in the dayside ionosphere to estimate the pressure gradient force in the fluid momentum equation, we estimate horizontal day‐to‐night plasma flow speeds of a few kilometers per second near 400 km.en_US
dc.rights© 2019. American Geophysical Union. All Rights Reserved.en_US
dc.titlePressure Gradients Driving Ion Transport in the Topside Martian Atmosphereen_US
kusw.kuauthorHamil, O.
kusw.kuauthorCravens, T. E.
kusw.kudepartmentPhysics and Astronomyen_US
kusw.oanotesPer Sherpa Romeo 02/22/2021:

Journal of Geophysical Research: Space Physics [Open panel below]Publication Information TitleJournal of Geophysical Research: Space Physics [English] ISSNsElectronic: 2169-9402 URL Publishers American Geophysical Union [Client Organisation] Wiley [Commercial Publisher] [Open panel below]Publisher Policy Open Access pathways permitted by this journal's policy are listed below by article version. Click on a pathway for a more detailed view.

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kusw.oaversionScholarly/refereed, publisher versionen_US
kusw.oapolicyThis item meets KU Open Access policy criteria.en_US

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