Possible ionospheric preconditioning by shear flow leading to equatorial spread F
| dc.contributor.author | Hysell, D. L. | |
| dc.contributor.author | Kudeki, E. | |
| dc.contributor.author | Chau Chong Shing, Jorge Luis | |
| dc.date.accessioned | 2018-07-16T14:38:47Z | |
| dc.date.available | 2018-07-16T14:38:47Z | |
| dc.date.issued | 2005-10-14 | |
| dc.description.abstract | Vertical shear in the zonal plasma drift speed is apparent in incoherent and coherent scatter radar observations of the bottomside F region ionosphere made at Jicamarca from about 1600–2200 LT. The relative importance of the factors controlling the shear, which include competition between the E and F region dynamos as well as vertical currents driven in the E and F regions at the dip equator, is presently unknown. Bottom-type scattering layers arise in strata where the neutral and plasma drifts differ widely, and periodic structuring of irregularities within the layers is telltale of intermediate-scale waves in the bottomside. These precursor waves appear to be able to seed ionospheric interchange instabilities and initiate full-blown equatorial spread F. The seed or precursor waves may be generated by a collisional shear instability. However, assessing the viability of shear instability requires measurements of the same parameters needed to understand shear flow quantitatively - thermospheric neutral wind and off-equatorial conductivity profiles. | es_ES |
| dc.description.peer-review | Por pares | es_ES |
| dc.format | application/pdf | es_ES |
| dc.identifier.citation | Hysell, D. L., Kudeki, E., & Chau, J. L. (2005). Possible ionospheric preconditioning by shear flow leading to equatorial spread F.==$Annales Geophysicae, 23$==(7), 2647-2655. https://doi.org/10.5194/angeo-23-2647-2005 | es_ES |
| dc.identifier.doi | https://doi.org/10.5194/angeo-23-2647-2005 | es_ES |
| dc.identifier.govdoc | index-oti2018 | |
| dc.identifier.journal | Annales Geophysicae | es_ES |
| dc.identifier.uri | http://hdl.handle.net/20.500.12816/1876 | |
| 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 | Equatorial ionosphere | es_ES |
| dc.subject | Ionospheric irregularities | es_ES |
| dc.subject | Plasma waves | es_ES |
| dc.subject.ocde | http://purl.org/pe-repo/ocde/ford#1.05.01 | es_ES |
| dc.title | Possible ionospheric preconditioning by shear flow leading to equatorial spread F | es_ES |
| dc.type | info:eu-repo/semantics/article | es_ES |