Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/809
DC FieldValueLanguage
dc.contributor.authorallMikhailov, A. V.; Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation (IZMIRAN), Russian Academy of Sciences, Troitsk (Moscow Region), Russiaen
dc.contributor.authorallLilensten, J.; Laboratoire de Planétologie de Grenoble, Bâtiment D de Physique, Grenoble, Franceen
dc.date.accessioned2006-02-20T13:30:35Zen
dc.date.available2006-02-20T13:30:35Zen
dc.date.issued2004en
dc.identifier.urihttp://hdl.handle.net/2122/809en
dc.description.abstractHeight distribution of ionospheric plasma parameters in the F2-region is closely related to height distribution of the main thermospheric parameters. Therefore, they can be extracted from ionospheric observations solving an inverse problem of aeronomy. A self-consistent approach to the Ne(h) modeling at the F2-region heights has been applied to solve the problem. Using routine incoherent scatter radar observations (Ne(h), Te(h), Ti(h), Vi(h) profiles) the method yields a self-consistent set of main aeronomic parameters responsible for the F2-region formation. The list of derived parameters includes: neutral temperature profile Tn(h) depending on the exospheric temperature Tex, the temperature at 120 km T120 and the shape-parameter S, which determine the temperature profile, concentration of neutral species [O], [O2], [N2], vertical plasma drift W, which may be converted to the meridional thermospheric wind Vnx, total solar EUV flux and ion composition (O+, O2 +, NO+, N2 +, N+) as a result of Ne(h) fitting. Therefore, the method gives a complete description of the upper atmosphere condition in the vicinity of incoherent scatter facility for the periods of observation. Analysis of all available EISCAT (CP-1, CP-2) observations has shown wide deviations from MSIS-86 model predictions for geomagnetically disturbed conditions while the retrieved parameters are close to the model ones for quiet periods. The approach turns out to be very useful for physical analyses of the F2-layer disturbance mechanisms giving a complete picture of the phenomenon in question. Limitations and problems related to method application are discussed. Under existing conditions when thermospheric observations are not conducted currently the proposed method may be considered a real tool for thermosphere investigation and monitoring at least for the periods of ISR observations.en
dc.format.extent1660356 bytesen
dc.format.mimetypeapplication/pdfen
dc.language.isoEnglishen
dc.publisher.nameINGVen
dc.relation.ispartofAnnals of Geophysicsen
dc.relation.ispartofseries2-3 supl/47 (2004)en
dc.titleA revised method to extract thermospheric parameters from incoherent scatter observationsen
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.subject.INGV01. Atmosphere::01.02. Ionosphere::01.02.06. Instruments and techniquesen
dc.description.journalTypeJCR Journalen
dc.description.fulltextopenen
dc.contributor.authorMikhailov, A. V.en
dc.contributor.authorLilensten, J.en
dc.contributor.departmentInstitute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation (IZMIRAN), Russian Academy of Sciences, Troitsk (Moscow Region), Russiaen
dc.contributor.departmentLaboratoire de Planétologie de Grenoble, Bâtiment D de Physique, Grenoble, Franceen
item.openairetypearticle-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.author.deptPushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation (IZMIRAN), Troitsk, Moscow Region 142190, Russia-
crisitem.author.deptLaboratoire de Planetologie de Grenoble, OSUG-CNRS, France-
crisitem.author.orcid0000-0002-4427-7699-
crisitem.classification.parent01. Atmosphere-
Appears in Collections:Annals of Geophysics
Files in This Item:
File Description SizeFormat
05Mikhailov.pdf1.62 MBAdobe PDFView/Open
Show simple item record

Page view(s) 50

190
checked on Mar 27, 2024

Download(s) 20

458
checked on Mar 27, 2024

Google ScholarTM

Check