The influence of geomagnetic activity on mesospheric summer echoes in middle and polar latitudes

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dc.bibliographicCitation.firstPage831
dc.bibliographicCitation.issue2eng
dc.bibliographicCitation.journalTitleAnnales Geophysicaeeng
dc.bibliographicCitation.lastPage837
dc.bibliographicCitation.volume27
dc.contributor.authorZeller, O.
dc.contributor.authorBremer, J.
dc.date.accessioned2018-02-23T22:07:37Z
dc.date.available2019-06-28T12:38:27Z
dc.date.issued2009
dc.description.abstractThe dependence of mesospheric VHF radar echoes during summer months on geomagnetic activity has been investigated with observation data of the OSWIN radar in Kühlungsborn (54° N) and of the ALWIN radar in Andenes (69° N). Using daily mean values of VHF radar echoes and of geomagnetic activity indices in superimposed epoch analyses, the comparison of both data sets shows in general stronger radar echoes on the day of the maximum geomagnetic activity, the maximum value one day after the geomagnetic disturbance, and enhanced radar echoes also on the following 2–3 days. This phenomenon is observed at middle and polar latitudes and can be explained by precipitating particle fluxes during the ionospheric post storm effect. At polar latitudes, the radar echoes decrease however during and one day after very strong geomagnetic disturbances. The possible reason of this surprising effect is discussed.eng
dc.description.versionpublishedVersioneng
dc.formatapplication/pdf
dc.identifier.urihttps://doi.org/10.34657/1678
dc.identifier.urihttps://oa.tib.eu/renate/handle/123456789/4043
dc.language.isoengeng
dc.publisherMünchen : European Geopyhsical Unioneng
dc.relation.doihttps://doi.org/10.5194/angeo-27-831-2009
dc.rights.licenseCC BY 3.0 Unportedeng
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/eng
dc.subject.ddc530eng
dc.subject.otherIonosphere (Mid-latitude ionosphereeng
dc.subject.otherPolar ionosphere) Radio science (Remote sensing)eng
dc.subject.othercomparative studyeng
dc.subject.otherflux measurementeng
dc.subject.othergeomagnetic fieldeng
dc.subject.othergeomagnetismeng
dc.subject.othermesosphereeng
dc.subject.otherpolar meteorologyeng
dc.subject.otherradareng
dc.titleThe influence of geomagnetic activity on mesospheric summer echoes in middle and polar latitudeseng
dc.typeArticleeng
dc.typeTexteng
tib.accessRightsopenAccesseng
wgl.contributorIAPeng
wgl.subjectPhysikeng
wgl.subjectGeowissenschafteneng
wgl.typeZeitschriftenartikeleng
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