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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/31074
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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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1844613045972631552 |
score |
13.070432 |