Počet záznamů: 1
Enhancing the ISIS‐I Topside Digital Ionogram Database
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SYSNO ASEP 0496768 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Enhancing the ISIS‐I Topside Digital Ionogram Database Tvůrce(i) Benson, R. F. (US)
Bilitza, D. (US)
Fung, S. F. (US)
Truhlík, Vladimír (UFA-U) RID, ORCID
Wang, Y. (US)Celkový počet autorů 5 Zdroj.dok. Radio Science. - : Wiley - ISSN 0048-6604
Roč. 53, č. 12 (2018), s. 1492-1505Poč.str. 14 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova data enhancement ; data/model comparisons ; digital topside ionograms ; ionospheric topside vertical electron-density profiles ; ISIS ; topside ionosphere Vědní obor RIV BL - Fyzika plazmatu a výboje v plynech Obor OECD Fluids and plasma physics (including surface physics) CEP LTAUSA17100 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora UFA-U - RVO:68378289 UT WOS 000455261600004 EID SCOPUS 85058382054 DOI 10.1029/2018RS006659 Anotace Selected original analog telemetry tapes from three of the topside-sounder satellites of the International Satellites for Ionospheric Studies (ISIS) program, namely Alouette 2, ISIS I, and ISIS II, were used in an earlier project to produce more than 1/2 million digital topside ionograms: the resulting digital topside ionograms from ISIS II were used to produce more than 86,000 globally distributed vertical topside ionospheric electron density profiles N-e(h) that cover a time span of more than a solar cycle. These N-e(h) were produced using the Topside Ionogram Scaler with True height algorithm auto-scaling software. Before attempting to automatically process Alouette-2 or ISIS-I ionograms, a data-enhancement project was initiated so as to increase the number of ionograms suitable for manual scaling and to increase the auto-processing success rate. These enhancements were mainly to correct problems that often occurred during the analog-to-digital conversion of the original telemetry tapes. Here we illustrate the improvements made to the ISIS-I digital topside ionograms and compare N-e values at the satellite altitude and N-e(h) profiles, based on the manual scaling of selected ionograms, to both the auto-scaled values and the predictions of the International Reference Ionosphere 2016 model. The results indicate the need to improve the available auto-processing software for the new ISIS-I digital ionograms and that International Reference Ionosphere 2016 predicts midlatitude winter topside N-e values that are too high in the late morning and at noon but too low in the early morning.
Pracoviště Ústav fyziky atmosféry Kontakt Kateřina Adamovičová, adamovicova@ufa.cas.cz, Tel.: 272 016 012 ; Kateřina Potužníková, kaca@ufa.cas.cz, Tel.: 272 016 019 Rok sběru 2019
Počet záznamů: 1