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dc.contributor.authorHall, Chris
dc.contributor.authorNozawa, S.
dc.date.accessioned2022-03-01T12:05:31Z
dc.date.available2022-03-01T12:05:31Z
dc.date.issued2021-06-04
dc.description.abstractMedium frequency radars with multiple receivers are able to track the movement of the interference pattern on the ground from echoes from irregularities in refractive index. In particular, refractive index in the mesosphere is determined by electron density – commonly known as the ionospheric D-region. Thus using this technique it is possible to determine winds in the height regime 70-90 km, depending on the degree of ionization throughout the year. In addition, by examining the fading times of the passage of these structures, it is possible to deduce metrics pertaining to neutral air turbulence. Here, we employ a well-established method to this effect. Thereafter, comparing the turbulent intensity to the kinematic viscosity of the neutral atmosphere, we determine the turbopause altitude. Above this height, atmospheric constituents behave independently, whereas below, all components are mixed. Contrary to earlier analyses, we present evidence the turbopause altitude has been constant since approximately 2004.en_US
dc.identifier.citationHall C M, Nozawa S. On the temporal evolution of turbopause altitude, 1996-2021, 70 N, 19 E . Experimental Results. 2021;2(e17):1-7en_US
dc.identifier.cristinIDFRIDAID 2001674
dc.identifier.doi10.1017/exp.2021.6
dc.identifier.issn2516-712X
dc.identifier.urihttps://hdl.handle.net/10037/24201
dc.language.isoengen_US
dc.publisherCambridge University Pressen_US
dc.relation.journalExperimental Results
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2021 The Author(s)en_US
dc.titleOn the temporal evolution of turbopause altitude, 1996-2021, 70 N, 19 Een_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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