Mostrar el registro sencillo del ítem Maute, A. Hagan, M. E. Yudin, V. Liu, H. L. Yizengaw, E. 2018-11-15T17:19:38Z 2018-11-15T17:19:38Z 2015-05-22
dc.identifier.issn 2169-9402
dc.description.abstract "During stratospheric sudden warming (SSW) periods large changes in the low‐latitude vertical drift have been observed at Jicamarca as well as in other longitudinal sectors. In general, a strengthening of the daytime maximum vertical drift with a shift from prenoon to the afternoon is observed. During the January 2013 stratospheric warming significant longitudinal differences in the equatorial vertical drift were observed. At Jicamarca the previously reported SSW behavior prevails; however, no shift of the daytime maximum drift was exhibited in the African sector. Using the National Center for Atmospheric Research thermosphere‐ionosphere‐mesosphere electrodynamics general circulation model (TIME‐GCM) the possible causes for the longitudinal difference are examined. The timing of the strong SSW effect in the vertical drift (15–20 January) coincides with moderate geomagnetic activity. The simulation indicates that approximately half of the daytime vertical drift increase in the American sector may be related to the moderate geophysical conditions (Kp = 4) with the effect being negligible in the African sector. The simulation suggests that the wind dynamo accounts for approximately 50% of the daytime vertical drift in the American sector and almost 100% in the African sector. The simulation agrees with previous findings that the migrating solar tides and the semidiurnal westward propagating tide with zonal wave number 1 (SW1) mainly contribute to the daytime wind dynamo and vertical drift. Numerical experiments suggest that the neutral wind and the geomagnetic main field contribute to the presence (absence) of a local time shift in the daytime maximum drift in the American (African) sector". es_ES
dc.format application/pdf es_ES
dc.language.iso eng es_ES
dc.publisher Journal of Geophysical Research: Space Physics es_ES
dc.rights info:eu-repo/semantics/restrictedAccess es_ES
dc.rights.uri es_ES
dc.source Repositorio institucional - IGP es_ES
dc.subject Atmósfera--Observaciones--Perú es_ES
dc.subject Atmósfera--Investigación--Perú es_ES
dc.subject Geomagnetismo es_ES
dc.subject Actividad solar es_ES
dc.subject Campos magnéticos es_ES
dc.subject Termósfera es_ES
dc.subject Ionósfera--Investigación es_ES
dc.subject Campos eléctricos es_ES
dc.title Causes of the longitudinal differences in the equatorial vertical E × B drift during the 2013 SSW period as simulated by the TIME‐GCM es_ES
dc.type info:eu-repo/semantics/article es_ES
dc.subject.ocde Atmósfera es_ES
dc.subject.ocde Observación es_ES
dc.subject.ocde Perú es_ES
dc.subject.ocde Modelos es_ES
dc.subject.ocde Simulación es_ES
dc.subject.ocde Geofísica es_ES
dc.subject.ocde África es_ES
dc.identifier.journal Journal of Geophysical Research: Space Physics es_ES
dc.description.peer-review Por pares es_ES
dc.identifier.doi 10.1002/2015JA021126 es_ES




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