The on-axis beam at Jicamarca: is it pointing correctly?

Descripción del Articulo

Vertical velocity measurements of atmospheric winds are becoming increasingly important. To obtain the long-term mean vertical motion of the atmosphere is difficult to do, both because of the small velocities involved and because of the finite width of the antenna beam. Since the vertical wind measu...

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Detalles Bibliográficos
Autores: Chau Chong Shing, Jorge Luis, Balsley, B.B., Huamán, M.M., Castillo, O., Woodman Pollitt, Ronald Francisco
Formato: documento de trabajo
Fecha de Publicación:1995
Institución:Instituto Geofísico del Perú
Repositorio:IGP-Institucional
Lenguaje:inglés
OAI Identifier:oai:repositorio.igp.gob.pe:20.500.12816/676
Enlace del recurso:http://hdl.handle.net/20.500.12816/676
Nivel de acceso:acceso abierto
Materia:Winds
Measurement
Antennas
Atmosphere
Jicamarca Radio Observatory
http://purl.org/pe-repo/ocde/ford#1.05.01
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dc.title.none.fl_str_mv The on-axis beam at Jicamarca: is it pointing correctly?
title The on-axis beam at Jicamarca: is it pointing correctly?
spellingShingle The on-axis beam at Jicamarca: is it pointing correctly?
Chau Chong Shing, Jorge Luis
Winds
Measurement
Antennas
Atmosphere
Jicamarca Radio Observatory
http://purl.org/pe-repo/ocde/ford#1.05.01
title_short The on-axis beam at Jicamarca: is it pointing correctly?
title_full The on-axis beam at Jicamarca: is it pointing correctly?
title_fullStr The on-axis beam at Jicamarca: is it pointing correctly?
title_full_unstemmed The on-axis beam at Jicamarca: is it pointing correctly?
title_sort The on-axis beam at Jicamarca: is it pointing correctly?
author Chau Chong Shing, Jorge Luis
author_facet Chau Chong Shing, Jorge Luis
Balsley, B.B.
Huamán, M.M.
Castillo, O.
Woodman Pollitt, Ronald Francisco
author_role author
author2 Balsley, B.B.
Huamán, M.M.
Castillo, O.
Woodman Pollitt, Ronald Francisco
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Chau Chong Shing, Jorge Luis
Balsley, B.B.
Huamán, M.M.
Castillo, O.
Woodman Pollitt, Ronald Francisco
dc.subject.none.fl_str_mv Winds
Measurement
Antennas
Atmosphere
Jicamarca Radio Observatory
topic Winds
Measurement
Antennas
Atmosphere
Jicamarca Radio Observatory
http://purl.org/pe-repo/ocde/ford#1.05.01
dc.subject.ocde.none.fl_str_mv http://purl.org/pe-repo/ocde/ford#1.05.01
description Vertical velocity measurements of atmospheric winds are becoming increasingly important. To obtain the long-term mean vertical motion of the atmosphere is difficult to do, both because of the small velocities involved and because of the finite width of the antenna beam. Since the vertical wind measurement is very sensitive to the tilt of the vertically-directed antenna beam, we decided to get the Jicamarca beam direction by measuring the phase and amplitude of a ref­erence signal at each of the antenna feed points. Our results tell us that, while the antenna pointing direction is already good, there is room for improvement.
publishDate 1995
dc.date.accessioned.none.fl_str_mv 2016-11-07T23:09:24Z
2017-12-21T19:41:56Z
dc.date.available.none.fl_str_mv 2016-11-07T23:09:24Z
2017-12-21T19:41:56Z
dc.date.issued.fl_str_mv 1995
dc.type.none.fl_str_mv info:eu-repo/semantics/workingPaper
format workingPaper
dc.identifier.citation.none.fl_str_mv Chau, J. L., Balsley, B. B., Huamán, M. M., Castillo, O., & Woodman, R. F. (1995). The on-axis beam at Jicamarca: is it pointing correctly?.
dc.identifier.uri.none.fl_str_mv http://hdl.handle.net/20.500.12816/676
identifier_str_mv Chau, J. L., Balsley, B. B., Huamán, M. M., Castillo, O., & Woodman, R. F. (1995). The on-axis beam at Jicamarca: is it pointing correctly?.
url http://hdl.handle.net/20.500.12816/676
dc.language.iso.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
dc.rights.uri.none.fl_str_mv https://creativecommons.org/licences/by/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licences/by/4.0/
dc.format.none.fl_str_mv application/pdf
dc.coverage.spatial.none.fl_str_mv Jicamarca
dc.publisher.none.fl_str_mv Instituto Geofísico del Perú
publisher.none.fl_str_mv Instituto Geofísico del Perú
dc.source.none.fl_str_mv reponame:IGP-Institucional
instname:Instituto Geofísico del Perú
instacron:IGP
instname_str Instituto Geofísico del Perú
instacron_str IGP
institution IGP
reponame_str IGP-Institucional
collection IGP-Institucional
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spelling Chau Chong Shing, Jorge LuisBalsley, B.B.Huamán, M.M.Castillo, O.Woodman Pollitt, Ronald FranciscoJicamarca2016-11-07T23:09:24Z2017-12-21T19:41:56Z2016-11-07T23:09:24Z2017-12-21T19:41:56Z1995Chau, J. L., Balsley, B. B., Huamán, M. M., Castillo, O., & Woodman, R. F. (1995). The on-axis beam at Jicamarca: is it pointing correctly?.http://hdl.handle.net/20.500.12816/676Vertical velocity measurements of atmospheric winds are becoming increasingly important. To obtain the long-term mean vertical motion of the atmosphere is difficult to do, both because of the small velocities involved and because of the finite width of the antenna beam. Since the vertical wind measurement is very sensitive to the tilt of the vertically-directed antenna beam, we decided to get the Jicamarca beam direction by measuring the phase and amplitude of a ref­erence signal at each of the antenna feed points. Our results tell us that, while the antenna pointing direction is already good, there is room for improvement.application/pdfengInstituto Geofísico del Perúinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licences/by/4.0/WindsMeasurementAntennasAtmosphereJicamarca Radio Observatoryhttp://purl.org/pe-repo/ocde/ford#1.05.01The on-axis beam at Jicamarca: is it pointing correctly?info:eu-repo/semantics/workingPaperreponame:IGP-Institucionalinstname:Instituto Geofísico del Perúinstacron:IGPORIGINALThe On-Axis Beam at Jicamarca-Is it Pointing correctly.PDFapplication/pdf82992https://repositorio.igp.gob.pe/bitstreams/f76d5451-69ab-4099-9eef-4f3e51c4e492/downloadec4916295e4c54ac3ae27d64ae7afa15MD51LICENSElicense.txttext/plain1748https://repositorio.igp.gob.pe/bitstreams/f553b3fb-56a1-43f6-bc39-a45bda99be62/download8a4605be74aa9ea9d79846c1fba20a33MD52THUMBNAILThe On-Axis Beam at Jicamarca-Is it Pointing correctly.PDF.jpgThe On-Axis Beam at Jicamarca-Is it Pointing correctly.PDF.jpgIM Thumbnailimage/jpeg88563https://repositorio.igp.gob.pe/bitstreams/fbf35611-953d-46f1-9dbf-92c99d7151ab/downloade9bc55e37006d533d56c001c9529ce95MD53TEXTThe On-Axis Beam at Jicamarca-Is it Pointing correctly.PDF.txtThe On-Axis Beam at Jicamarca-Is it Pointing correctly.PDF.txtExtracted texttext/plain3https://repositorio.igp.gob.pe/bitstreams/e9254eed-f14f-4272-9974-8f7b8e54a84a/download2228e977ebea8966e27929f43e39cb67MD5420.500.12816/676oai:repositorio.igp.gob.pe:20.500.12816/6762024-10-12 22:18:20.836https://creativecommons.org/licences/by/4.0/info:eu-repo/semantics/openAccessopen.accesshttps://repositorio.igp.gob.peRepositorio Geofísico Nacionalbiblio@igp.gob.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The on-axis beam at Jicamarca: is it pointing correctly?
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