Mostrar el registro sencillo del ítem

dc.contributor.author Lehmacher, G. A.
dc.contributor.author Guo, L.
dc.contributor.author Kudeki, E.
dc.contributor.author Reyes, P. M.
dc.contributor.author Akgiray, A.
dc.contributor.author Chau Chong Shing, Jorge Luis
dc.date.accessioned 2018-07-18T10:56:28Z
dc.date.available 2018-07-18T10:56:28Z
dc.date.issued 2007
dc.identifier.citation Lehmacher, G. A., Guo, L., Kudeki, E., Reyes, P. M., Akgiray, A., & Chau, J. L. (2007). High-resolution observations of mesospheric layers with the Jicamarca VHF Radar.==$Advances in Space Research, 40$==(6), 734-743. https://doi.org/10.1016/j.asr.2007.05.059 es_ES
dc.identifier.govdoc index-oti2018
dc.identifier.uri http://hdl.handle.net/20.500.12816/1916
dc.description.abstract We report new results from the 50-MHz Jicamarca radar in Peru (12°S, 77°W), which is able to observe backscatter from the daytime mesosphere on any given day. Since 2005, the radar has been operated in a high-power MST-ISR mode for 3-day runs four times per year to study the seasonal variation of mesospheric echoes. Doppler spectra are obtained with 1 min and 150-m nominal resolution yielding power, horizontal and vertical winds, and spectral width. The rich echo structures contain braids and billows suggestive of Kelvin–Helmholtz instability (KHI). We present three cases; (1) a short sequence of billows growing in height and becoming unstable; (2) a long train of billows showing high levels of turbulence at two different locations; and (3) a series of billows passing only slowly through the field of view. In all cases, the layers were associated with strong wind shears, mature billows were 1–1.5 km tall, and separation of KH phase fronts was 8–10 km. We compare our observations with OH imager observation and numerical simulations. es_ES
dc.format application/pdf es_ES
dc.language.iso eng es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof urn:issn:0273-1177
dc.rights info:eu-repo/semantics/restrictedAccess es_ES
dc.subject Equatorial mesosphere es_ES
dc.subject VHF radar es_ES
dc.subject VHF echoes es_ES
dc.subject Kelvin–Helmholtz instability es_ES
dc.subject Turbulence es_ES
dc.title High-resolution observations of mesospheric layers with the Jicamarca VHF Radar es_ES
dc.type info:eu-repo/semantics/article es_ES
dc.subject.ocde http://purl.org/pe-repo/ocde/ford#1.05.01 es_ES
dc.identifier.journal Advances in Space Research es_ES
dc.description.peer-review Por pares es_ES
dc.identifier.doi https://doi.org/10.1016/j.asr.2007.05.059 es_ES

Thumbnail

 Bloqueado

Colecciones

Mostrar el registro sencillo del ítem