EMIC Wave Parameterization in the Long-Term Verb Code Simulation

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dc.contributor.ORCID0000-0003-3556-8096 (Zhu, H)en_US
dc.contributor.authorDrozdov, A. Y.en_US
dc.contributor.authorShprits, Y. Y.en_US
dc.contributor.authorUsanova, M. E.en_US
dc.contributor.authorAseev, N. A.en_US
dc.contributor.authorKellerman, A. C.en_US
dc.contributor.authorZhu, Huien_US
dc.contributor.utdAuthorZhu, Huien_US
dc.date.accessioned2018-08-20T16:05:37Z
dc.date.available2018-08-20T16:05:37Z
dc.date.created2017-08-24
dc.descriptionIncludes supplementary materialen_US
dc.description.abstractElectromagnetic ion cyclotron (EMIC) waves play an important role in the dynamics of ultrarelativistic electron population in the radiation belts. However, as EMIC waves are very sporadic, developing a parameterization of such wave properties is a challenging task. Currently, there are no dynamic, activity-dependent models of EMIC waves that can be used in the long-term (several months) simulations, which makes the quantitative modeling of the radiation belt dynamics incomplete. In this study, we investigate Kp, Dst, and AE indices, solar wind speed, and dynamic pressure as possible parameters of EMIC wave presence. The EMIC waves are included in the long-term simulations (1 year, including different geomagnetic activity) performed with the Versatile Electron Radiation Belt code, and we compare results of the simulation with the Van Allen Probes observations. The comparison shows that modeling with EMIC waves, parameterized by solar wind dynamic pressure, provides a better agreement with the observations among considered parameterizations. The simulation with EMIC waves improves the dynamics of ultrarelativistic fluxes and reproduces the formation of the local minimum in the phase space density profiles.en_US
dc.description.departmentErik Jonsson School of Engineering and Computer Scienceen_US
dc.description.sponsorshipNASA grant NNX16AF91G; European Union's Horizon 2020 research and innovation program under grant agreement 637302en_US
dc.identifier.bibliographicCitationDrozdov, A. Y., Y. Y. Shprits, M. E. Usanova, N. A. Aseev, et al. 2017. "EMIC wave parameterization in the long-term VERB code simulation." Journal of Geophysical Research - Space Physics 122(8), doi:10.1002/2017JA024389en_US
dc.identifier.issn2169-9380en_US
dc.identifier.issue8en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/5966
dc.identifier.volume122en_US
dc.language.isoenen_US
dc.publisherAmer Geophysical Unionen_US
dc.relation.urihttp://dx.doi.org/10.1002/2017JA024389
dc.rights©2017 American Geophysical Union. All Rights Reserved.en_US
dc.source.journalJournal of Geophysical Research – Space Physicsen_US
dc.subjectRadiation beltsen_US
dc.subjectCyclotronsen_US
dc.subjectSpace probesen_US
dc.subjectElectromagnetic wavesen_US
dc.subjectRadiation belt simulationsen_US
dc.subjectElectronsen_US
dc.subjectGeomagnetismen_US
dc.subjectMagnetic stormsen_US
dc.subjectMagnetosphereen_US
dc.subjectVan Allen radiation beltsen_US
dc.subjectIonsen_US
dc.titleEMIC Wave Parameterization in the Long-Term Verb Code Simulationen_US
dc.type.genrearticleen_US

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