Polar mesosphere summer echo studies at 51.5 MHz at Resolute Bay, Canada: Comparison with Poker Flat results

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dc.contributor.authorHuamán, Mercedes M.
dc.contributor.authorKelley, Michael C.
dc.contributor.authorHocking, Wayne K.
dc.contributor.authorWoodman Pollitt, Ronald Francisco
dc.date.accessioned2018-07-12T20:31:34Z
dc.date.available2018-07-12T20:31:34Z
dc.date.issued2001-11
dc.description.abstractWe present a study of seasonal and diurna! variations of polar mesosphere summer echoes (PMSE), along with temperature and wind data collected during summer 1998 using the 51.5 MHz VHF radar located in Resolute Bay, Canada (75°N, 95°W). The latitudinal dependence of PMSE occurrence and strength are examined by comparing Resolute Bay observations with earlier Poker Flat (65°N, 147°W) observations. Temperatures measurements at Resolute Bay using the radar in the meteor mode are compared with satellite measurements at similar latitudes ofResolute Bay and Poker Flat. The temperature measurements are in good agreement, and, as expected, PMSE is strongly controlled by the seasonal temperature variations. Differences found in the daily composite and monthly average winds, and in the monthly evolution of the amplitudes and phases of the diurna! and semidiurnal tides at Resolute Bay and Poker Flat, are discussed in order to establish the role that they play in the occurrence of PMSE. In general, we find that the diurna! occurrence of PMSE at Resolute Bay also follows the diurna! variation of temperature. The echoes tend to occur more frequently and with greatest intensity when the temperatures are the coldest, in a period centered around local noon. We show that the diurna! wind components at Resolute Bay appear to correlate with the occurrence of PMSE, as also seen at Poker Flat. PMSE at Resolute Bay are not as strong or as frequent as reported at Poker Flat, differing with what we had expected since strongest and more frequent echoes have been observed in the European sector approaching the pole. New observations are needed to establish a possible longitudinal dependence of PMSE occurrence given that the present American sector data are compared with data taken over 10 years ago.es_ES
dc.description.peer-reviewPor pareses_ES
dc.formatapplication/pdfes_ES
dc.identifier.citationHuamán, M. M., Kelley, M. C., Hocking, W. K., & Woodman, R. F. (2001). Polar mesosphere summer echo studies at 51.5 MHz at Resolute Bay, Canada: Comparison with Poker Flat results.==$Radio Science, 36$==(6), 1823-1837. https://doi.org/10.1029/2000RS001004es_ES
dc.identifier.doihttps://doi.org/10.1029/2000RS001004es_ES
dc.identifier.govdocindex-oti2018
dc.identifier.journalRadio Sciencees_ES
dc.identifier.urihttp://hdl.handle.net/20.500.12816/1791
dc.language.isoenges_ES
dc.publisherAmerican Geophysical Uniones_ES
dc.relation.ispartofurn:issn:0048-6604
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.urihttps://creativecommons.org/licences/by/4.0/es_ES
dc.subjectRadares_ES
dc.subjectSatelliteses_ES
dc.subjectTideses_ES
dc.subjectWaveses_ES
dc.subjectMesospherees_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.01es_ES
dc.titlePolar mesosphere summer echo studies at 51.5 MHz at Resolute Bay, Canada: Comparison with Poker Flat resultses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES

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