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dc.contributor.author Woodman Pollitt, Ronald Francisco
dc.contributor.author Guillén, Alberto
dc.date.accessioned 2018-07-03T15:25:36Z
dc.date.available 2018-07-03T15:25:36Z
dc.date.issued 1974-03
dc.identifier.citation Woodman, R. F., & Guillén, A. (1974). Radar observations of winds and turbulence in the stratosphere and mesosphere.==$Journal of the Atmospheric Sciences, 31$==(2), 493-505. https://doi.org/10.1175/1520-0469(1974)031<0493:ROOWAT>2.0.CO;2 es_ES
dc.identifier.govdoc index-oti2018
dc.identifier.uri http://hdl.handle.net/20.500.12816/1658
dc.description.abstract A technique for the observation of radar echoes from stratospheric and mesospheric heights has been developed at the Jicamarca Radio Observatory. Signals are detected at the altitude ranges between 10–35 km and from 55–85 km with powers from many to several tens of decibels above noise level. The three most important frequency spectrum characteristics-power, Doppler shift and spectrum width-are observed in real time. The power levels as well as the spectral width are explained in terms of turbulent layers, with a thickness of the order of 100 m, in regions with a positive potential temperature or electron density vertical gradients. Continuous wind velocity records are obtained with a precision of the order of 0.02–0.2 m sec−1 for the vertical component and 0.20–2 m sec−1 for the horizontal, with a time resolution of the order of 1 min. The highest precisions are obtained at stratosphere heights. Fluctuations in velocity in the mesosphere are observed at the shortest gravity wave periods with amplitudes of the order of 1 m sec−1 for the vertical component and of 10 m sec−1 for the horizontal. Tidal components at these altitudes are not as large as predicted by theory. A technique to obtain the power, the Doppler shift, and the width of the frequency spectrum of the echo signals from only two points of the correlation function is described. es_ES
dc.format application/pdf es_ES
dc.language.iso eng es_ES
dc.publisher American Meteorological Society es_ES
dc.relation.ispartof urn:issn:0022-4928
dc.rights info:eu-repo/semantics/openAccess es_ES
dc.rights.uri https://creativecommons.org/licences/by/4.0/ es_ES
dc.subject Radar es_ES
dc.subject Echo es_ES
dc.subject Mesosphere es_ES
dc.subject Ionosphere es_ES
dc.subject Doppler effect es_ES
dc.subject Electrons es_ES
dc.subject Frequency spectra es_ES
dc.title Radar observations of winds and turbulence in the stratosphere and mesosphere 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 Journal of the Atmospheric Sciences es_ES
dc.description.peer-review Por pares es_ES
dc.identifier.doi https://doi.org/10.1175/1520-0469(1974)031<0493:ROOWAT>2.0.CO;2 es_ES

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