Multistatic specular meteor radar network in Peru: system description and initial results

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dc.contributor.authorChau, J. L.
dc.contributor.authorUrco, J. M.
dc.contributor.authorVierinen, J.
dc.contributor.authorHarding, B. J.
dc.contributor.authorClahsen, M.
dc.contributor.authorPfeffer, N.
dc.contributor.authorKuyeng, Karim
dc.contributor.authorMilla, Marco
dc.contributor.authorErickson, P. J.
dc.coverage.spatialPerú
dc.date.accessioned2021-02-17T13:01:00Z
dc.date.available2021-02-17T13:01:00Z
dc.date.issued2021-01
dc.description.abstractThe mesosphere and lower thermosphere (MLT) region is dominated globally by dynamics at various scales: planetary waves, tides, gravity waves, and stratified turbulence. The latter two can coexist and be significant at horizontal scales less than 500 km, scales that are difficult to measure. This study presents a recently deployed multistatic specular meteor radar system, SIMONe Peru, which can be used to observe these scales. The radars are positioned at and around the Jicamarca Radio Observatory, which is located at the magnetic equator. Besides presenting preliminary results of typically reported large‐scale features, like the dominant diurnal tide at low latitudes, we show results on selected days of spatially and temporally resolved winds obtained with two methods based on: (a) estimation of mean wind and their gradients (gradient method), and (b) an inverse theory with Tikhonov regularization (regularized wind field inversion method). The gradient method allows improved MLT vertical velocities and, for the first time, low‐latitude wind field parameters such as horizontal divergence and relative vorticity. The regularized wind field inversion method allows the estimation of spatial structure within the observed area and has the potential to outperform the gradient method, in particular when more detections are available or when fine adaptive tuning of the regularization factor is done. SIMONe Peru adds important information at low latitudes to currently scarce MLT continuous observing capabilities. Results contribute to studies of the MLT dynamics at different scales inherently connected to lower atmospheric forcing and E‐region dynamo related ionospheric variability.es_ES
dc.description.peer-reviewPor pareses_ES
dc.formatapplication/pdfes_ES
dc.identifier.citationChau, J. L., Urco, J. M., Vierinen, J., Harding, B. J., Clahsen, M., Pfeffer, N., ... & Erickson, P. J. (2021). Multistatic specular meteor radar network in Peru: system description and initial results.==$Earth and Space Science, 8$==(1), e2020EA001293. https://doi.org/10.1029/2020EA001293es_ES
dc.identifier.doihttps://doi.org/10.1029/2020EA001293es_ES
dc.identifier.govdocindex-oti2018
dc.identifier.journalEarth and Space Sciencees_ES
dc.identifier.urihttp://hdl.handle.net/20.500.12816/4922
dc.language.isoenges_ES
dc.publisherAmerican Geophysical Uniones_ES
dc.relation.ispartofurn:issn:2333-5084
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/es_ES
dc.subjectLow latitude mesospherees_ES
dc.subjectMLT dynamicses_ES
dc.subjectMLT horizontal divergencees_ES
dc.subjectMLT vorticityes_ES
dc.subjectMultistatic radar observationses_ES
dc.subjectVertical velocityes_ES
dc.subject.ocdehttps://purl.org/pe-repo/ocde/ford#1.05.01es_ES
dc.titleMultistatic specular meteor radar network in Peru: system description and initial resultses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES

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