Original title:
Study of Chance for Good DDA Drift Velocity Estimation for Ionospheric F-region Drift Measurements
Authors:
Kouba, Daniel ; Koucká Knížová, Petra Document type: Papers Conference/Event: Week of Doctoral Students 2010. Annual Student Conference /19./, Prague (CZ), 2010-06-01 / 2010-06-04
Year:
2010
Language:
eng Abstract:
Estimation of the plasma drift velocity measured by Digisonde depends on the number of reflection points and their distribution. In the paper we divide and analyse plasma drift measurements according to the number of reflection points. A detailed study of Digisonde drift measurement quality has not been published yet. Two extreme groups are selected for further detail analysis, the first one with less than 100 reflection points and the second with more than 800 points. Within the data in these groups we detect annular and diurnal variability. Measurements containing low number of the reflection points occur mainly around equinoxes and during day-time. On the contrary, maximum occurrence of the measurements with more than 800 points is in winter and summer. The lowest chance to register extreme number of the reflections is during afternoon and around sunset.
Keywords:
DDA; Drift Velocity; Estimation; F-region Project no.: CEZ:AV0Z30420517 (CEP), IAA300420704 (CEP), GA205/06/1267 (CEP), GA205/06/1619 (CEP), COST 296 (MIERS) Funding provider: GA AV ČR, GA ČR, GA ČR, European Union Host item entry: WDS’10 Proceedings of Contributed Papers: Part II – Physics of Plasmas and Ionized Media, ISBN 978-80-7378-140-8
Institution: Institute of Atmospheric Physics AS ČR
(web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences. Original record: http://hdl.handle.net/11104/0195833