Interhemispheric propagation and interactions of auroral traveling ionospheric disturbances near the equator

Simple item page
dc.contributor.authorPradipta, Rezy
dc.contributor.authorValladares, Cesar E.
dc.contributor.authorCarter, Brett A.
dc.contributor.authorDoherty, Patricia H.
dc.date.accessioned2018-11-20T20:47:47Z
dc.date.available2018-11-20T20:47:47Z
dc.date.issued2016-02-11
dc.description.abstractWe present the results of our GPS total electron content and ionosonde observations of large‐scale traveling ionospheric disturbances (LSTIDs) during the 26 September 2011 geomagnetic storm. We analyzed the propagation characteristics of these LSTIDs from the auroral zones all the way to the equatorial region and studied how the auroral LSTIDs from opposite hemispheres interact/interfere near the geomagnetic equator. We found an overall propagation speed of ∼700 m/s for these LSTIDs and that the resultant amplitude of the LSTID interference pattern actually far exceeded the sum of individual amplitudes of the incoming LSTIDs from the immediate vicinity of the interference zone. We suspect that this peculiar intensification of auroral LSTIDs around the geomagnetic equator is facilitated by the significantly higher ceiling/canopy of the ionospheric plasma layer there. Normally, acoustic‐gravity waves (AGWs) that leak upward (and thus increase in amplitude) would find a negligible level of plasma density at the topside ionosphere. However, the tip of the equatorial fountain at the geomagnetic equator constitutes a significant amount of plasma at a topside‐equivalent altitude. The combination of increased AGW amplitudes and a higher plasma density at such altitude would therefore result in higher‐amplitude LSTIDs in this particular region, as demonstrated in our observations and analysis.es_ES
dc.description.peer-reviewPor pareses_ES
dc.formatapplication/pdfes_ES
dc.identifier.citationPradipta, R., Valladares, C. E., Carter, B. A., & Doherty, P. H. (2016). Interhemispheric propagation and interactions of auroral traveling ionospheric disturbances near the equator.==$Journal of Geophysical Research: Space Physics, 121$==(3), 2462-2474. https://doi.org/10.1002/2015JA022043es_ES
dc.identifier.doihttps://doi.org/10.1002/2015JA022043es_ES
dc.identifier.journalJournal of Geophysical Research: Space Physicses_ES
dc.identifier.urihttp://hdl.handle.net/20.500.12816/3756
dc.language.isoenges_ES
dc.publisherAmerican Geophysical Uniones_ES
dc.relation.ispartofurn:issn:2169-9380
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_ES
dc.subjectLarge‐scale traveling ionospheric disturbanceses_ES
dc.subjectGravity waveses_ES
dc.subjectGPS total electron contentes_ES
dc.subjectIonosondees_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.01es_ES
dc.titleInterhemispheric propagation and interactions of auroral traveling ionospheric disturbances near the equatores_ES
dc.typeinfo:eu-repo/semantics/articlees_ES

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
IGP-1-1-1-1495141329.pdf
Size:
4.35 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
391 B
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Artículos Científicos