VHF doppler radar backscatter measurements through the entire neutral atmosphere (15-95 km) above Jicamarca, Peru

Descripción del Articulo

The Jicamarca 50-MHz radar was used to obtain backscattered echoes through the entire atmosphere (0-100 km). Previous radar observations at VHF have shown a gap near the 35-55 km region, where the lack of echoes is attributed to a lack of radar sensitivity. By using the full Jicamarca antenna array...

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Detalles Bibliográficos
Autores: Cornish, C.R., Balsley, B.B., Woodman Pollitt, Ronald Francisco
Formato: documento de trabajo
Fecha de Publicación:1980
Institución:Instituto Geofísico del Perú
Repositorio:IGP-Institucional
Lenguaje:inglés
OAI Identifier:oai:repositorio.igp.gob.pe:20.500.12816/538
Enlace del recurso:http://hdl.handle.net/20.500.12816/538
Nivel de acceso:acceso abierto
Materia:Echoes
Signal processing
Radar
Jicamarca Radio Observatory
Antennas
http://purl.org/pe-repo/ocde/ford#1.05.01
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dc.title.none.fl_str_mv VHF doppler radar backscatter measurements through the entire neutral atmosphere (15-95 km) above Jicamarca, Peru
title VHF doppler radar backscatter measurements through the entire neutral atmosphere (15-95 km) above Jicamarca, Peru
spellingShingle VHF doppler radar backscatter measurements through the entire neutral atmosphere (15-95 km) above Jicamarca, Peru
Cornish, C.R.
Echoes
Signal processing
Radar
Jicamarca Radio Observatory
Antennas
http://purl.org/pe-repo/ocde/ford#1.05.01
title_short VHF doppler radar backscatter measurements through the entire neutral atmosphere (15-95 km) above Jicamarca, Peru
title_full VHF doppler radar backscatter measurements through the entire neutral atmosphere (15-95 km) above Jicamarca, Peru
title_fullStr VHF doppler radar backscatter measurements through the entire neutral atmosphere (15-95 km) above Jicamarca, Peru
title_full_unstemmed VHF doppler radar backscatter measurements through the entire neutral atmosphere (15-95 km) above Jicamarca, Peru
title_sort VHF doppler radar backscatter measurements through the entire neutral atmosphere (15-95 km) above Jicamarca, Peru
author Cornish, C.R.
author_facet Cornish, C.R.
Balsley, B.B.
Woodman Pollitt, Ronald Francisco
author_role author
author2 Balsley, B.B.
Woodman Pollitt, Ronald Francisco
author2_role author
author
dc.contributor.author.fl_str_mv Cornish, C.R.
Balsley, B.B.
Woodman Pollitt, Ronald Francisco
dc.subject.none.fl_str_mv Echoes
Signal processing
Radar
Jicamarca Radio Observatory
Antennas
topic Echoes
Signal processing
Radar
Jicamarca Radio Observatory
Antennas
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 The Jicamarca 50-MHz radar was used to obtain backscattered echoes through the entire atmosphere (0-100 km). Previous radar observations at VHF have shown a gap near the 35-55 km region, where the lack of echoes is attributed to a lack of radar sensitivity. By using the full Jicamarca antenna array and maximun transmitter power and by optimizing transmitter duty cycle through the implementation of complementary codes, doppler measurements display discernable peaks in the computed spectra from atmospheric signals in the gap region as well as above and below it. The results indicate that a minimum power-aperture threshold in excess of 1010 W-m2 is required in order to obtain backscatter echoes near 50 MHz through the entire neutral atmosphere.
publishDate 1980
dc.date.accessioned.none.fl_str_mv 2016-11-08T00:41:19Z
2017-12-21T19:41:42Z
dc.date.available.none.fl_str_mv 2016-11-08T00:41:19Z
2017-12-21T19:41:42Z
dc.date.issued.fl_str_mv 1980
dc.type.none.fl_str_mv info:eu-repo/semantics/workingPaper
format workingPaper
dc.identifier.citation.none.fl_str_mv Cornish, C. R., Balsley, B. B., & Woodman, R. F. (1980). VHF doppler radar backscatter measurements through the entire neutral atmosphere (15-95 km) above Jicamarca, Perú.
dc.identifier.uri.none.fl_str_mv http://hdl.handle.net/20.500.12816/538
identifier_str_mv Cornish, C. R., Balsley, B. B., & Woodman, R. F. (1980). VHF doppler radar backscatter measurements through the entire neutral atmosphere (15-95 km) above Jicamarca, Perú.
url http://hdl.handle.net/20.500.12816/538
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.publisher.none.fl_str_mv Instituto Geofísico del Perú, Radio Observatorio de Jicamarca
publisher.none.fl_str_mv Instituto Geofísico del Perú, Radio Observatorio de Jicamarca
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 Cornish, C.R.Balsley, B.B.Woodman Pollitt, Ronald Francisco2016-11-08T00:41:19Z2017-12-21T19:41:42Z2016-11-08T00:41:19Z2017-12-21T19:41:42Z1980Cornish, C. R., Balsley, B. B., & Woodman, R. F. (1980). VHF doppler radar backscatter measurements through the entire neutral atmosphere (15-95 km) above Jicamarca, Perú.http://hdl.handle.net/20.500.12816/538The Jicamarca 50-MHz radar was used to obtain backscattered echoes through the entire atmosphere (0-100 km). Previous radar observations at VHF have shown a gap near the 35-55 km region, where the lack of echoes is attributed to a lack of radar sensitivity. By using the full Jicamarca antenna array and maximun transmitter power and by optimizing transmitter duty cycle through the implementation of complementary codes, doppler measurements display discernable peaks in the computed spectra from atmospheric signals in the gap region as well as above and below it. 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