Mostrar el registro sencillo del ítem Hinrichs, J. Dyrud, L. P. Urbina, J. 2018-07-19T14:25:18Z 2018-07-19T14:25:18Z 2009-05-04
dc.identifier.citation Hinrichs, J., Dyrud, L. P., & Urbina, J. (2009). Diurnal variation of non-specular meteor trails.==$Annales Geophysicae, 27$==(5), 1961-1967. es_ES
dc.description.abstract We present results of simulated radar observations of meteor trails in an effort to show how non-specular meteor trails are expected to vary as a function of a number of key atmospheric, ionospheric and meteoroid parameters. This paper identifies which geophysical sources effect the variability in non-specular trail radar observations, and provides an approach that uses some of these parameter dependencies to determine meteoroid and atmospheric properties based upon the radar meteor observations. The numerical model used follows meteor evolution from ablation and ionization to head echo plasma generation and through formation of field aligned irregularities (FAI). Our main finding is that non-specular meteor trail duration is highly sensitive to the presence of lower thermospheric winds or electric fields and the background ionospheric electron density. In an effort to make key predictions we present the first results of how the same meteoroid is expected to produce dramatically different meteor trails as a function of location and local time. For example, we show that mid-latitude trail durations are often shorter lasting than equatorial trail observations because of the difference in mid-latitude wind speed and equatorial drift speed. The simulated trails also account for observations showing that equatorial nighttime non-specular meteor trails last significantly longer and are observed more often than daytime trails. es_ES
dc.format application/pdf es_ES
dc.language.iso eng es_ES
dc.publisher European Geosciences Union es_ES
dc.relation.ispartof urn:issn:0992-7689
dc.rights info:eu-repo/semantics/restrictedAccess es_ES
dc.subject Meteors es_ES
dc.subject Radar es_ES
dc.subject Ionosphere es_ES
dc.subject Atmospheric Physics es_ES
dc.subject Astrophysics es_ES
dc.subject Echoes es_ES
dc.subject Plasma Density es_ES
dc.subject Electric Fields es_ES
dc.title Diurnal variation of non-specular meteor trails es_ES
dc.type info:eu-repo/semantics/article es_ES
dc.subject.ocde es_ES
dc.identifier.journal Annales Geophysicae es_ES
dc.description.peer-review Por pares es_ES
dc.identifier.doi es_ES




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