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New advances in empirical modelling of ion composition in the outer ionosphere
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SYSNO ASEP 0104034 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title New advances in empirical modelling of ion composition in the outer ionosphere Title Nový pokrok v empirickém modelování iontového složení vnější ionosféry Author(s) Truhlík, Vladimír (UFA-U) RID, ORCID
Třísková, Ludmila (UFA-U) RID
Šmilauer, Jan (UFA-U) RIDSource Title Advances in Space Research. - : Elsevier - ISSN 0273-1177
Roč. 33, č. 6 (2004), s. 844-849Number of pages 6 s. Language eng - English Country NL - Netherlands Keywords topside ionosphere ; ion composition ; satellite measurements Subject RIV DG - Athmosphere Sciences, Meteorology R&D Projects GP205/02/P037 GA ČR - Czech Science Foundation (CSF) IAA3042201 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) IAB3042104 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z3042911 - UFA-U, BC-A Annotation A new global empirical model of the relative ion composition in the outer ionosphere (altitude range of 500-2500 km) for the most important ions (O+, H+, He+ and N+) has been developed. It is based on the solar minimum data from the Atmospheric Explorer satellites which have been verified over the last two decades, and on the data of the maximum of the 22nd solar cycle recorded on board the Intercosmos 24 satellite (ACTIVE mission) by a Bennett ion mass spectrometer (BIMS), the only data from a period of high solar activity in the altitude range studied. In this paper, the following is presented. (1) Validation of the ACTIVE mass spectrometer data by comparing it with newly processed results of measurements made on board the same spacecraft. (2) Linear interpolation of the logarithm of relative ion density between both solar activity extremes (to obtain model values under any level of solar activity) and comparison with OGO-6 results. (3) Comparison of the upper transition height provided by the proposed model with other transition height models Workplace Institute of Atmospheric Physics Contact Kateřina Adamovičová, adamovicova@ufa.cas.cz, Tel.: 272 016 012 ; Kateřina Potužníková, kaca@ufa.cas.cz, Tel.: 272 016 019 Year of Publishing 2005
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