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dc.contributor.authorGünzkofer, Florian
dc.contributor.authorPokhotelov, Dimitry
dc.contributor.authorStober, Gunter
dc.contributor.authorMann, Ingrid Brigitte
dc.contributor.authorVadas, Sharon L.
dc.contributor.authorBecker, Erich
dc.contributor.authorTjulin, Anders
dc.contributor.authorKozlovsky, Alexander
dc.contributor.authorTsutsumi, Masaki
dc.contributor.authorGulbrandsen, Njål
dc.contributor.authorNozawa, Satonori
dc.contributor.authorLester, Mark
dc.contributor.authorBelova, Evgenia
dc.contributor.authorKero, Johan
dc.contributor.authorMitchell, Nicholas J.
dc.contributor.authorBorries, Claudia
dc.date.accessioned2024-01-04T12:48:12Z
dc.date.available2024-01-04T12:48:12Z
dc.date.issued2023-10-18
dc.description.abstractAtmospheric gravity waves and traveling ionospheric disturbances can be observed in the neutral atmosphere and the ionosphere at a wide range of spatial and temporal scales. Especially at medium scales, these oscillations are often not resolved in general circulation models and are parameterized. We show that ionospheric disturbances forced by upward-propagating atmospheric gravity waves can be simultaneously observed with the EISCAT very high frequency incoherent scatter radar and the Nordic Meteor Radar Cluster. From combined multi-static measurements, both vertical and horizontal wave parameters can be determined by applying a specially developed Fourier filter analysis method. This method is demonstrated using the example of a strongly pronounced wave mode that occurred during the EISCAT experiment on 7 July 2020. Leveraging the developed technique, we show that the wave characteristics of traveling ionospheric disturbances are notably impacted by the fall transition of the mesosphere and lower thermosphere. We also demonstrate the application of using the determined wave parameters to infer the thermospheric neutral wind velocities. Applying the dissipative anelastic gravity wave dispersion relation, we obtain vertical wind profiles in the lower thermosphere.en_US
dc.identifier.citationGünzkofer, Pokhotelov, Stober, Mann, Vadas, Becker, Tjulin, Kozlovsky, Tsutsumi, Gulbrandsen, Nozawa, Lester, Belova, Kero, Mitchell, Borries. Inferring neutral winds in the ionospheric transition region from atmospheric-gravity-wave traveling-ionospheric-disturbance (AGW-TID) observations with the EISCAT VHF radar and the Nordic Meteor Radar Cluster. Annales Geophysicae. 2023;41(2):409-428en_US
dc.identifier.cristinIDFRIDAID 2216160
dc.identifier.doi10.5194/angeo-41-409-2023
dc.identifier.issn0992-7689
dc.identifier.issn1432-0576
dc.identifier.urihttps://hdl.handle.net/10037/32314
dc.language.isoengen_US
dc.publisherEuropean Geosciences Union (EGU)en_US
dc.relation.journalAnnales Geophysicae
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2023 The Author(s)en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0en_US
dc.rightsAttribution 4.0 International (CC BY 4.0)en_US
dc.titleInferring neutral winds in the ionospheric transition region from atmospheric-gravity-wave traveling-ionospheric-disturbance (AGW-TID) observations with the EISCAT VHF radar and the Nordic Meteor Radar Clusteren_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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Attribution 4.0 International (CC BY 4.0)
Med mindre det står noe annet, er denne innførselens lisens beskrevet som Attribution 4.0 International (CC BY 4.0)