Modeling the Daytime Energy Balance of the Topside Ionosphere at Middle Latitudes

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dc.contributor.authorHsu, Chih-Teen_US
dc.contributor.authorHeelis, Roderick A.en_US
dc.contributor.utdAuthorHsu, Chih-Teen_US
dc.contributor.utdAuthorHeelis, Roderick A.en_US
dc.date.accessioned2018-08-20T16:14:20Z
dc.date.available2018-08-20T16:14:20Z
dc.date.created2017-05-10en_US
dc.date.issued2018-08-20
dc.description.abstractRecently reported measurements from the Defense Meteorological Satellite Program (DMSP) indicate that the O⁺ temperature in the topside ionosphere is dependent on the fractional H⁺ density. This finding indicates that the mass-dependent energy exchange rate between O⁺ and H⁺ plays an important role in the thermal balance of the topside ionosphere. In this study we utilize the SAMI2 model to retrieve both T_{H⁺} and T_{O⁺} and verify the previously observed dependence of ion temperature on ion composition. The model shows that in the topside at middle latitudes when a single ion is dominant, O⁺ or H⁺ is heated by electron collisions and cooled by conduction as expected. However, in the intervening altitude region where both O⁺ and H⁺ are present, O⁺ is heated by collisions with H⁺ and cooled by conduction, while H⁺ is heated by collisions with electrons and cooled by collisions with O⁺.en_US
dc.description.departmentSchool of Natural Sciences and Mathematicsen_US
dc.description.departmentWilliam B. Hanson Center for Space Sciencesen_US
dc.description.sponsorshipNASA Grant NNX10AT02G.en_US
dc.identifier.bibliographicCitationHsu, Chih-Te, and Roderick A. Heelis. 2017. "Modeling the daytime energy balance of the topside ionosphere at middle latitudes." Journal of Geophysical Research-Space Physics 122(5): 5733-5742.en_US
dc.identifier.issn2169-9380en_US
dc.identifier.issue5en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/5974
dc.identifier.volume122en_US
dc.language.isoenen_US
dc.publisherAmer Geophysical Unionen_US
dc.relation.urihttp://dx.doi.org/10.1002/2017JA024112
dc.rights©2017 American Geophysical Union. All Rights Reserved.en_US
dc.sourceJournal of Geophysical Research-Space Physics
dc.subjectIonosphereen_US
dc.subjectIncoherent scatter radaren_US
dc.subjectElectronsen_US
dc.subjectIonsen_US
dc.subjectAtmosphereen_US
dc.titleModeling the Daytime Energy Balance of the Topside Ionosphere at Middle Latitudesen_US
dc.type.genrearticleen_US

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