Southern Argentina Agile Meteor Radar: System design and initial measurements of large-scale winds and tides
- Autores
- Fritts, D.C.; Janches, D.; Iimura, H.; Hocking, W. K.; Mitchell, N. J.; Stockwell, R. G.; Fuller, B.; Vandepeer, B.; Hormaechea, José Luis; Brunini, Claudio Antonio; Levato, Orlando Hugo
- Año de publicación
- 2010
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The Southern Argentina Agile Meteor Radar (SAAMER) was installed at Rio Grande on Tierra del Fuego (53.8°S, 67.8°W) in May 2008 and has been operational for ∼24 months. This paper describes the motivations for the radar design and its placement at the southern tip of South America, its operating modes and capabilities, and observations of the mean winds, planetary waves, and tides during its first ∼20 months of operation. SAAMER was specifically designed to provide very high resolution of large-scale motions and hopefully enable direct measurements of the vertical momentum flux by gravity waves, which have only been possible previously with dual- or multiple-beam radars and lidars or in situ measurements. SAAMER was placed on Tierra del Fuego because it was a region devoid of similar measurements, the latitude was anticipated to provide high sensitivity to an expected large semidiurnal tide, and the region is now recognized to be a "hot spot" of small-scale gravity wave activity extending from the troposphere into the mesosphere and lower thermosphere, perhaps the most dynamically active location on Earth. SAAMER was also intended to permit simultaneous enhanced meteor studies, including "head echo" and "nonspecular" measurements, which were previously possible only with high-power large-aperture radars. Initial measurements have defined the mean circulation and structure, exhibited planetary waves at various periods, and revealed large semidiurnal tide amplitudes and variability, with maximum amplitudes at higher altitudes often exceeding 60 m s-1 and amplitude modulations at periods from a few to ∼30 days.
Universidad Nacional De La Plata - Materia
-
Ciencias Astronómicas
Radar
Radar design
Argentina
Tierra del Fuego - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/82502
Ver los metadatos del registro completo
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Southern Argentina Agile Meteor Radar: System design and initial measurements of large-scale winds and tidesFritts, D.C.Janches, D.Iimura, H.Hocking, W. K.Mitchell, N. J.Stockwell, R. G.Fuller, B.Vandepeer, B.Hormaechea, José LuisBrunini, Claudio AntonioLevato, Orlando HugoCiencias AstronómicasRadarRadar designArgentinaTierra del FuegoThe Southern Argentina Agile Meteor Radar (SAAMER) was installed at Rio Grande on Tierra del Fuego (53.8°S, 67.8°W) in May 2008 and has been operational for ∼24 months. This paper describes the motivations for the radar design and its placement at the southern tip of South America, its operating modes and capabilities, and observations of the mean winds, planetary waves, and tides during its first ∼20 months of operation. SAAMER was specifically designed to provide very high resolution of large-scale motions and hopefully enable direct measurements of the vertical momentum flux by gravity waves, which have only been possible previously with dual- or multiple-beam radars and lidars or in situ measurements. SAAMER was placed on Tierra del Fuego because it was a region devoid of similar measurements, the latitude was anticipated to provide high sensitivity to an expected large semidiurnal tide, and the region is now recognized to be a "hot spot" of small-scale gravity wave activity extending from the troposphere into the mesosphere and lower thermosphere, perhaps the most dynamically active location on Earth. SAAMER was also intended to permit simultaneous enhanced meteor studies, including "head echo" and "nonspecular" measurements, which were previously possible only with high-power large-aperture radars. Initial measurements have defined the mean circulation and structure, exhibited planetary waves at various periods, and revealed large semidiurnal tide amplitudes and variability, with maximum amplitudes at higher altitudes often exceeding 60 m s<SUP>-1</SUP> and amplitude modulations at periods from a few to ∼30 days.Universidad Nacional De La Plata2010info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/82502enginfo:eu-repo/semantics/altIdentifier/issn/01480227info:eu-repo/semantics/altIdentifier/doi/10.1029/2010JD013850info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:15:31Zoai:sedici.unlp.edu.ar:10915/82502Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:15:31.471SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Southern Argentina Agile Meteor Radar: System design and initial measurements of large-scale winds and tides |
title |
Southern Argentina Agile Meteor Radar: System design and initial measurements of large-scale winds and tides |
spellingShingle |
Southern Argentina Agile Meteor Radar: System design and initial measurements of large-scale winds and tides Fritts, D.C. Ciencias Astronómicas Radar Radar design Argentina Tierra del Fuego |
title_short |
Southern Argentina Agile Meteor Radar: System design and initial measurements of large-scale winds and tides |
title_full |
Southern Argentina Agile Meteor Radar: System design and initial measurements of large-scale winds and tides |
title_fullStr |
Southern Argentina Agile Meteor Radar: System design and initial measurements of large-scale winds and tides |
title_full_unstemmed |
Southern Argentina Agile Meteor Radar: System design and initial measurements of large-scale winds and tides |
title_sort |
Southern Argentina Agile Meteor Radar: System design and initial measurements of large-scale winds and tides |
dc.creator.none.fl_str_mv |
Fritts, D.C. Janches, D. Iimura, H. Hocking, W. K. Mitchell, N. J. Stockwell, R. G. Fuller, B. Vandepeer, B. Hormaechea, José Luis Brunini, Claudio Antonio Levato, Orlando Hugo |
author |
Fritts, D.C. |
author_facet |
Fritts, D.C. Janches, D. Iimura, H. Hocking, W. K. Mitchell, N. J. Stockwell, R. G. Fuller, B. Vandepeer, B. Hormaechea, José Luis Brunini, Claudio Antonio Levato, Orlando Hugo |
author_role |
author |
author2 |
Janches, D. Iimura, H. Hocking, W. K. Mitchell, N. J. Stockwell, R. G. Fuller, B. Vandepeer, B. Hormaechea, José Luis Brunini, Claudio Antonio Levato, Orlando Hugo |
author2_role |
author author author author author author author author author author |
dc.subject.none.fl_str_mv |
Ciencias Astronómicas Radar Radar design Argentina Tierra del Fuego |
topic |
Ciencias Astronómicas Radar Radar design Argentina Tierra del Fuego |
dc.description.none.fl_txt_mv |
The Southern Argentina Agile Meteor Radar (SAAMER) was installed at Rio Grande on Tierra del Fuego (53.8°S, 67.8°W) in May 2008 and has been operational for ∼24 months. This paper describes the motivations for the radar design and its placement at the southern tip of South America, its operating modes and capabilities, and observations of the mean winds, planetary waves, and tides during its first ∼20 months of operation. SAAMER was specifically designed to provide very high resolution of large-scale motions and hopefully enable direct measurements of the vertical momentum flux by gravity waves, which have only been possible previously with dual- or multiple-beam radars and lidars or in situ measurements. SAAMER was placed on Tierra del Fuego because it was a region devoid of similar measurements, the latitude was anticipated to provide high sensitivity to an expected large semidiurnal tide, and the region is now recognized to be a "hot spot" of small-scale gravity wave activity extending from the troposphere into the mesosphere and lower thermosphere, perhaps the most dynamically active location on Earth. SAAMER was also intended to permit simultaneous enhanced meteor studies, including "head echo" and "nonspecular" measurements, which were previously possible only with high-power large-aperture radars. Initial measurements have defined the mean circulation and structure, exhibited planetary waves at various periods, and revealed large semidiurnal tide amplitudes and variability, with maximum amplitudes at higher altitudes often exceeding 60 m s<SUP>-1</SUP> and amplitude modulations at periods from a few to ∼30 days. Universidad Nacional De La Plata |
description |
The Southern Argentina Agile Meteor Radar (SAAMER) was installed at Rio Grande on Tierra del Fuego (53.8°S, 67.8°W) in May 2008 and has been operational for ∼24 months. This paper describes the motivations for the radar design and its placement at the southern tip of South America, its operating modes and capabilities, and observations of the mean winds, planetary waves, and tides during its first ∼20 months of operation. SAAMER was specifically designed to provide very high resolution of large-scale motions and hopefully enable direct measurements of the vertical momentum flux by gravity waves, which have only been possible previously with dual- or multiple-beam radars and lidars or in situ measurements. SAAMER was placed on Tierra del Fuego because it was a region devoid of similar measurements, the latitude was anticipated to provide high sensitivity to an expected large semidiurnal tide, and the region is now recognized to be a "hot spot" of small-scale gravity wave activity extending from the troposphere into the mesosphere and lower thermosphere, perhaps the most dynamically active location on Earth. SAAMER was also intended to permit simultaneous enhanced meteor studies, including "head echo" and "nonspecular" measurements, which were previously possible only with high-power large-aperture radars. Initial measurements have defined the mean circulation and structure, exhibited planetary waves at various periods, and revealed large semidiurnal tide amplitudes and variability, with maximum amplitudes at higher altitudes often exceeding 60 m s<SUP>-1</SUP> and amplitude modulations at periods from a few to ∼30 days. |
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2010 |
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2010 |
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