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dc.contributor.author Chapagain, Narayan P.
dc.contributor.author Fejer, Bela G.
dc.contributor.author Chau Chong Shing, Jorge Luis
dc.date.accessioned 2018-07-19T16:25:06Z
dc.date.available 2018-07-19T16:25:06Z
dc.date.issued 2009-07
dc.identifier.citation Chapagain, N. P., Fejer, B. G., & Chau, J. L. (2009). Climatology of postsunset equatorial spread F over Jicamarca.==$Journal of Geophysical Research: Space Physics, 114$==(A7), A07307. https://doi.org/10.1029/2008JA013911 es_ES
dc.identifier.govdoc index-oti2018
dc.identifier.uri http://hdl.handle.net/20.500.12816/1972
dc.description.abstract We use radar observations from 1996 to 2006 to study the climatology of postsunset equatorial 3-m spread F irregularities over Jicamarca during all seasons. We show that the spread F onset times do not change with solar flux and that their onset heights, which occur near the altitude of the evening F region velocity vortex, increase linearly from about 260 to 400 km from solar minimum to solar maximum. Higher onset heights generally lead to stronger radar echoes. During the equinox, spread F onset occurs near vertical drift evening reversal times, while during the December solstice, they occur near the drift reversal times close to solar minimum and near the time of the prereversal velocity peak for high solar flux conditions. On average, radar plume onset occurs earlier with increasing solar flux in all seasons. Plume onset and peak altitudes increase with solar activity, and the peak heights are generally highest during the equinox. The F region upward drift velocities that precede spread F onset increase from solar minimum to solar maximum and are approximately proportional to the maximum prereversal drift peak velocities. 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:2169-9380
dc.rights info:eu-repo/semantics/restrictedAccess es_ES
dc.subject Equatorial ionosphere es_ES
dc.subject Ionospheric irregularities es_ES
dc.subject Ionospheric disturbances es_ES
dc.title Climatology of postsunset equatorial spread F over Jicamarca 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 Geophysical Research: Space Physics es_ES
dc.description.peer-review Por pares es_ES
dc.identifier.doi https://doi.org/10.1029/2008JA013911 es_ES

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