Comparison of H+ and He+ plasmapause locations based on the resurrected and reevaluated OGO-5 ion composition data base

0429509 - ÚFA 2015 RIV GB eng J - Článek v odborném periodiku
Truhlík, Vladimír - Třísková, Ludmila - Benson, R. F. - Bilitza, D. - Grebowsky, J. - Richards, P. G.
Comparison of H+ and He+ plasmapause locations based on the resurrected and reevaluated OGO-5 ion composition data base.
Journal of Atmospheric and Solar-Terrestrial Physics. Roč. 119, NOV (2014), s. 27-34. ISSN 1364-6826. E-ISSN 1879-1824
Grant CEP: GA MŠMT(CZ) LH11123
Institucionální podpora: RVO:68378289
Klíčová slova: plasmasphere * plasmapause * FLIP * empirical model * OGO-5
Kód oboru RIV: DG - Vědy o atmosféře, meteorologie
Impakt faktor: 1.474, rok: 2014
http://www.sciencedirect.com/science/article/pii/S1364682614001321#

Orbiting Geophysical Observatory 5 (OGO 5) magnetospheric ion-composition data (H+, He+ and O+) have been retrieved from old magnetic tapes archived at the National Space Science Data Center (NSSDC). The highly compressed binary format was converted into a user-friendly ASCII format and these data have been made available online. We have inspected the reliability and consistency of this data set. Comparisons with the IRI-2012 climatological model and the FLIP theoretical model revealed a shift of absolute and relative ion densities with time. Here we have developed a correction procedure for the individual H+, He+ and O+ ion density measurements. We investigated plasmapause locations based on the density gradients in H+, and He+. The correlation coefficient between these locations was determined to be ~0.886 with the typical difference in L about 0.1. The electron density at the He+ plasmapause location based on the corrected data for all cases was >100 cm−3.
Trvalý link: http://hdl.handle.net/11104/0234612