High altitude large-scale plasma waves in the equatorial electrojet at twilight
| dc.contributor.author | Chau Chong Shing, Jorge Luis | |
| dc.contributor.author | Hysell, D. L. | |
| dc.date.accessioned | 2018-07-13T15:16:51Z | |
| dc.date.available | 2018-07-13T15:16:51Z | |
| dc.date.issued | 2004-12-24 | |
| dc.description.abstract | Jicamarca radar observations of a new class of large-scale plasma waves in the equatorial electrojet (EEJ) are presented and characterized. The study is based on long-term (204 days), single-baseline interferometry observations made in 2003 using a low-power radar mode, also known as JULIA mode, along with a few hours of observations made in an aperture synthesis imaging mode. The large-scale waves are found to occur at high altitudes in the E-region, mainly between 120 and 140km, around twilight (between 18:30 and 20:00 LT), with durations of a few minutes to an hour. In our long-term observations, these large-scale waves occur very often (between 1 and 5 out 10 nights), drift westward (~70 ms–1), exhibit very narrow spectral widths, and have both positive and negative Doppler shifts. The imaging results show that the large-scale waves occur along tilted bands that sweep westward and downward (~30–60ms–1), with a horizontal separation between bands of about 10–15km. The cause of the waves remains unknown. | es_ES |
| dc.description.peer-review | Por pares | es_ES |
| dc.format | application/pdf | es_ES |
| dc.identifier.citation | Chau, J. L., & Hysell, D. L. (2004). High altitude large-scale plasma waves in the equatorial electrojet at twilight.==$Annales Geophysicae, 22$==(12), 4071-4076. https://doi.org/10.5194/angeo-22-4071-2004 | es_ES |
| dc.identifier.doi | https://doi.org/10.5194/angeo-22-4071-2004 | es_ES |
| dc.identifier.govdoc | index-oti2018 | |
| dc.identifier.journal | Annales Geophysicae | es_ES |
| dc.identifier.uri | http://hdl.handle.net/20.500.12816/1829 | |
| dc.language.iso | eng | es_ES |
| dc.publisher | European Geosciences Union (EGU) | es_ES |
| dc.relation.ispartof | urn:issn:0992-7689 | |
| dc.rights | info:eu-repo/semantics/openAccess | es_ES |
| dc.rights.uri | https://creativecommons.org/licences/by/4.0/ | es_ES |
| dc.subject | Ionosphere | es_ES |
| dc.subject | Ionospheric irregularities | es_ES |
| dc.subject | Equatorial ionosphere | es_ES |
| dc.subject | Instruments and techniques | es_ES |
| dc.subject.ocde | http://purl.org/pe-repo/ocde/ford#1.05.01 | es_ES |
| dc.title | High altitude large-scale plasma waves in the equatorial electrojet at twilight | es_ES |
| dc.type | info:eu-repo/semantics/article | es_ES |