Mostrar el registro sencillo del ítem Woodman Pollitt, Ronald Francisco 2016-10-17T22:28:13Z 2017-12-21T19:41:48Z 2016-10-17T22:28:13Z 2017-12-21T19:41:48Z 1980-03
dc.identifier.citation Woodman, R. F. (1980). High-altitude resolution stratospheric measurements with the arecibo 430-MHz radar.==$Radio Science, 15$==(2), 417-422. es_ES
dc.identifier.govdoc index-oti2018
dc.description.abstract The potential of the Arecibo 430-MHz radar for the study of stratospheric dynamics and turbulence has been recently established. In the past the instrumented resolution of the system has been larger than 300-600 m. The present paper describes instrumental modifications which have enabled us to obtain a resolution of 150 m, the maximum allowed by the transmitter bandwidth. Such a gain in resolution is very important for stratospheric studies, since it is expected that turbulence occurs at these altitudes in layers with thickness between a few tens to a few hundred meters. Furthermore, a complementary coded pulse scheme has been used for the first time. Such a code has the advantage of generating no pulse side lobes, an important property for defining the quiet regions existing in between turbulent layers. Decoding is performed digitally. The high data processing rate is taken care of by the use of a preprocessor. Power spectra of the signals corresponding to 256 altitudes are evaluated on line by means of an array processor peripheral connected to the processing computer. Useful echoes have been obtained from 10 km to about 30 kin. The existence of layers of turbulence has been demonstrated, and their separation has been determined, but the thickness of some of them has still not been fully resolved. The separation of the layers varies as a function of altitude, changing from a few hundred meters at lower stratospheric heights to a few kilometers at 25- to 30-kin altitudes. The results obtained show the importance of high resolution when using radars to obtain wind information from the Doppler shift of turbulence echoes. es_ES
dc.format application/pdf es_ES
dc.language.iso eng es_ES
dc.publisher American Geophysical Union es_ES
dc.relation.ispartof urn:issn:0048-6604
dc.rights info:eu-repo/semantics/restrictedAccess es_ES
dc.subject Radar es_ES
dc.subject Stratosphere es_ES
dc.subject Gravitational waves es_ES
dc.title High-altitude resolution stratospheric measurements with the arecibo 430-MHz radar es_ES
dc.type info:eu-repo/semantics/article es_ES
dc.subject.ocde es_ES
dc.identifier.journal Radio Science es_ES
dc.description.peer-review Por pares es_ES
dc.identifier.doi es_ES




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