Interferometric meteor head echo observations using the Southern Argentina Agile Meteor Radar

Autores
Janches, D.; Hocking, W.; Pifko, S.; Hormaechea, José Luis; Fritts, D. C.; Brunini, Claudio Antonio; Michell, R.; Samara, M.
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A radar meteor echo is the radar scattering signature from the free electrons generated by the entry of extraterrestrial particles into the atmosphere. Three categories of scattering mechanisms exist: specular, nonspecular trails, and head echoes. Generally, there are two types of radars utilized to detect meteors. Traditional VHF all-sky meteor radars primarily detect the specular trails, while high-power, large-aperture (HPLA) radars efficiently detect meteor head echoes and, in some cases, nonspecular trails. The fact that head echo measurements can be performed only with HPLA radars limits these studies in several ways. HPLA radars are sensitive instruments constraining the studies to the lower masses, and these observations cannot be performed continuously because they take place at national observatories with limited allocated observing time. These drawbacks can be addressed by developing head echo observing techniques with modified all-sky meteor radars. Such systems would also permit simultaneous detection of all different scattering mechanisms using the same instrument, rather than requiring assorted different classes of radars, which can help clarify observed differences between the different methodologies. In this study, we demonstrate that such concurrent observations are now possible, enabled by the enhanced design of the Southern Argentina Agile Meteor Radar (SAAMER). The results presented here are derived from observations performed over a period of 12 days in August 2011 and include meteoroid dynamical parameter distributions, radiants, and estimated masses. Overall, the SAAMER's head echo detections appear to be produced by larger particles than those which have been studied thus far using this technique.
Fil: Janches, D.. National Aeronautics and Space Administration; Estados Unidos
Fil: Hocking, W.. University of Western Ontario; Canadá
Fil: Pifko, S.. University of Stanford; Estados Unidos
Fil: Hormaechea, José Luis. Estación Astronómica Rio Grande; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Fritts, D. C.. Gats Inc.; Estados Unidos
Fil: Brunini, Claudio Antonio. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Michell, R.. SouthWest Research Institute; Estados Unidos
Fil: Samara, M.. SouthWest Research Institute; Estados Unidos
Materia
Meteors
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/31074

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spelling Interferometric meteor head echo observations using the Southern Argentina Agile Meteor RadarJanches, D.Hocking, W.Pifko, S.Hormaechea, José LuisFritts, D. C.Brunini, Claudio AntonioMichell, R.Samara, M.Meteorshttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1A radar meteor echo is the radar scattering signature from the free electrons generated by the entry of extraterrestrial particles into the atmosphere. Three categories of scattering mechanisms exist: specular, nonspecular trails, and head echoes. Generally, there are two types of radars utilized to detect meteors. Traditional VHF all-sky meteor radars primarily detect the specular trails, while high-power, large-aperture (HPLA) radars efficiently detect meteor head echoes and, in some cases, nonspecular trails. The fact that head echo measurements can be performed only with HPLA radars limits these studies in several ways. HPLA radars are sensitive instruments constraining the studies to the lower masses, and these observations cannot be performed continuously because they take place at national observatories with limited allocated observing time. These drawbacks can be addressed by developing head echo observing techniques with modified all-sky meteor radars. Such systems would also permit simultaneous detection of all different scattering mechanisms using the same instrument, rather than requiring assorted different classes of radars, which can help clarify observed differences between the different methodologies. In this study, we demonstrate that such concurrent observations are now possible, enabled by the enhanced design of the Southern Argentina Agile Meteor Radar (SAAMER). The results presented here are derived from observations performed over a period of 12 days in August 2011 and include meteoroid dynamical parameter distributions, radiants, and estimated masses. Overall, the SAAMER's head echo detections appear to be produced by larger particles than those which have been studied thus far using this technique.Fil: Janches, D.. National Aeronautics and Space Administration; Estados UnidosFil: Hocking, W.. University of Western Ontario; CanadáFil: Pifko, S.. University of Stanford; Estados UnidosFil: Hormaechea, José Luis. Estación Astronómica Rio Grande; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Fritts, D. C.. Gats Inc.; Estados UnidosFil: Brunini, Claudio Antonio. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Michell, R.. SouthWest Research Institute; Estados UnidosFil: Samara, M.. SouthWest Research Institute; Estados UnidosAmerican Geophysical Union2014-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/31074Samara, M.; Michell, R.; Brunini, Claudio Antonio; Fritts, D. C.; Hormaechea, José Luis; Pifko, S.; et al.; Interferometric meteor head echo observations using the Southern Argentina Agile Meteor Radar; American Geophysical Union; Journal of Geophysical Research; 119; 3; 2-2014; 2269–22870148-0227CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/2013JA019241/abstractinfo:eu-repo/semantics/altIdentifier/doi/10.1002/2013JA019241info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:33:54Zoai:ri.conicet.gov.ar:11336/31074instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:33:55.048CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Interferometric meteor head echo observations using the Southern Argentina Agile Meteor Radar
title Interferometric meteor head echo observations using the Southern Argentina Agile Meteor Radar
spellingShingle Interferometric meteor head echo observations using the Southern Argentina Agile Meteor Radar
Janches, D.
Meteors
title_short Interferometric meteor head echo observations using the Southern Argentina Agile Meteor Radar
title_full Interferometric meteor head echo observations using the Southern Argentina Agile Meteor Radar
title_fullStr Interferometric meteor head echo observations using the Southern Argentina Agile Meteor Radar
title_full_unstemmed Interferometric meteor head echo observations using the Southern Argentina Agile Meteor Radar
title_sort Interferometric meteor head echo observations using the Southern Argentina Agile Meteor Radar
dc.creator.none.fl_str_mv Janches, D.
Hocking, W.
Pifko, S.
Hormaechea, José Luis
Fritts, D. C.
Brunini, Claudio Antonio
Michell, R.
Samara, M.
author Janches, D.
author_facet Janches, D.
Hocking, W.
Pifko, S.
Hormaechea, José Luis
Fritts, D. C.
Brunini, Claudio Antonio
Michell, R.
Samara, M.
author_role author
author2 Hocking, W.
Pifko, S.
Hormaechea, José Luis
Fritts, D. C.
Brunini, Claudio Antonio
Michell, R.
Samara, M.
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Meteors
topic Meteors
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv A radar meteor echo is the radar scattering signature from the free electrons generated by the entry of extraterrestrial particles into the atmosphere. Three categories of scattering mechanisms exist: specular, nonspecular trails, and head echoes. Generally, there are two types of radars utilized to detect meteors. Traditional VHF all-sky meteor radars primarily detect the specular trails, while high-power, large-aperture (HPLA) radars efficiently detect meteor head echoes and, in some cases, nonspecular trails. The fact that head echo measurements can be performed only with HPLA radars limits these studies in several ways. HPLA radars are sensitive instruments constraining the studies to the lower masses, and these observations cannot be performed continuously because they take place at national observatories with limited allocated observing time. These drawbacks can be addressed by developing head echo observing techniques with modified all-sky meteor radars. Such systems would also permit simultaneous detection of all different scattering mechanisms using the same instrument, rather than requiring assorted different classes of radars, which can help clarify observed differences between the different methodologies. In this study, we demonstrate that such concurrent observations are now possible, enabled by the enhanced design of the Southern Argentina Agile Meteor Radar (SAAMER). The results presented here are derived from observations performed over a period of 12 days in August 2011 and include meteoroid dynamical parameter distributions, radiants, and estimated masses. Overall, the SAAMER's head echo detections appear to be produced by larger particles than those which have been studied thus far using this technique.
Fil: Janches, D.. National Aeronautics and Space Administration; Estados Unidos
Fil: Hocking, W.. University of Western Ontario; Canadá
Fil: Pifko, S.. University of Stanford; Estados Unidos
Fil: Hormaechea, José Luis. Estación Astronómica Rio Grande; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Fritts, D. C.. Gats Inc.; Estados Unidos
Fil: Brunini, Claudio Antonio. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Michell, R.. SouthWest Research Institute; Estados Unidos
Fil: Samara, M.. SouthWest Research Institute; Estados Unidos
description A radar meteor echo is the radar scattering signature from the free electrons generated by the entry of extraterrestrial particles into the atmosphere. Three categories of scattering mechanisms exist: specular, nonspecular trails, and head echoes. Generally, there are two types of radars utilized to detect meteors. Traditional VHF all-sky meteor radars primarily detect the specular trails, while high-power, large-aperture (HPLA) radars efficiently detect meteor head echoes and, in some cases, nonspecular trails. The fact that head echo measurements can be performed only with HPLA radars limits these studies in several ways. HPLA radars are sensitive instruments constraining the studies to the lower masses, and these observations cannot be performed continuously because they take place at national observatories with limited allocated observing time. These drawbacks can be addressed by developing head echo observing techniques with modified all-sky meteor radars. Such systems would also permit simultaneous detection of all different scattering mechanisms using the same instrument, rather than requiring assorted different classes of radars, which can help clarify observed differences between the different methodologies. In this study, we demonstrate that such concurrent observations are now possible, enabled by the enhanced design of the Southern Argentina Agile Meteor Radar (SAAMER). The results presented here are derived from observations performed over a period of 12 days in August 2011 and include meteoroid dynamical parameter distributions, radiants, and estimated masses. Overall, the SAAMER's head echo detections appear to be produced by larger particles than those which have been studied thus far using this technique.
publishDate 2014
dc.date.none.fl_str_mv 2014-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/31074
Samara, M.; Michell, R.; Brunini, Claudio Antonio; Fritts, D. C.; Hormaechea, José Luis; Pifko, S.; et al.; Interferometric meteor head echo observations using the Southern Argentina Agile Meteor Radar; American Geophysical Union; Journal of Geophysical Research; 119; 3; 2-2014; 2269–2287
0148-0227
CONICET Digital
CONICET
url http://hdl.handle.net/11336/31074
identifier_str_mv Samara, M.; Michell, R.; Brunini, Claudio Antonio; Fritts, D. C.; Hormaechea, José Luis; Pifko, S.; et al.; Interferometric meteor head echo observations using the Southern Argentina Agile Meteor Radar; American Geophysical Union; Journal of Geophysical Research; 119; 3; 2-2014; 2269–2287
0148-0227
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/2013JA019241/abstract
info:eu-repo/semantics/altIdentifier/doi/10.1002/2013JA019241
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Geophysical Union
publisher.none.fl_str_mv American Geophysical Union
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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