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dc.contributor.authorCharuvil, Harikrishnan
dc.contributor.authorChau, Jorge L.
dc.contributor.authorMarino, Raffaele
dc.contributor.authorVierinen, Juha
dc.contributor.authorVargas, Fabio
dc.contributor.authorUrco, Juan M.
dc.contributor.authorClahsen, Matthias
dc.contributor.authorJacobi, Christoph
dc.date.accessioned2022-09-05T07:30:50Z
dc.date.available2022-09-05T07:30:50Z
dc.date.issued2022-05-11
dc.description.abstractIn recent years, multistatic specular meteor radars (SMRs) have been introduced to study the Mesosphere and Lower Thermosphere (MLT) dynamics with increasing spatial and temporal resolution. SMRs, compared to other groundbased observations, have the advantage of continuously measuring the region between 80 and 100 km independent of weather, season, or time of day. In this paper, frequency spectra of MLT horizontal winds are explored through observations from a campaign using the SIMONe (Spread-spectrum Interferometric Multistatic meteor radar Observing Network) approach conducted in northern Germany in 2018 (hereafter SIMONe 2018). The 7-day SIMONe 2018 comprised of fourteen multistatic SMR links and allows us to build a substantial database of specular meteor trail events, collecting more than one hundred thousand detections per day within a geographic area of ∼ 500 km × 500 km. We have implemented two methods to obtain the frequency spectra of the horizontal wind components: (1) Mean Wind Estimation (MWE) and (2) Wind feld Correlation Function Inversion (WCFI), which utilizes the mean and the covariances of the line of sight velocities, respectively. Monte Carlo simulations of a gravity wave spectral model were implemented to validate and compare both methods. The simulation analyses suggest that the WCFI helps us to capture the energy of smaller scale wind fuctuations than those capture with MWE. Characterization of the spectral slope of the horizontal wind at diferent MLT altitudes has been conducted on the SIMONe 2018, and it provides evidence that gravity waves with periods smaller than 7 h and greater than 2 h dominate with horizontal structures signifcantly larger than 500 km. In the future, these analyses can be extended to understand the signifcance of smallscale fuctuations in the MLT, which were not possible with conventional MWE methods.en_US
dc.identifier.citationCharuvil H, Chau JL, Marino R, Vierinen J, Vargas F, Urco JM, Clahsen M, Jacobi C. Frequency spectra of horizontal winds in the mesosphere and lower thermosphere region from multistatic specular meteor radar observations during the SIMONe 2018 campaign. Earth Planets and Space. 2022en_US
dc.identifier.cristinIDFRIDAID 2036572
dc.identifier.doihttps://doi.org/10.1186/s40623-022-01620-7
dc.identifier.issn1343-8832
dc.identifier.issn1880-5981
dc.identifier.urihttps://hdl.handle.net/10037/26611
dc.language.isoengen_US
dc.publisherSpringeren_US
dc.relation.journalEarth Planets and Space
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2022 The Author(s)en_US
dc.titleFrequency spectra of horizontal winds in the mesosphere and lower thermosphere region from multistatic specular meteor radar observations during the SIMONe 2018 campaignen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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