Počet záznamů: 1
Survey of magnetospheric line radiation events observed by the DEMETER spacecraft
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SYSNO ASEP 0330765 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Survey of magnetospheric line radiation events observed by the DEMETER spacecraft Tvůrce(i) Němec, František (UFA-U) RID
Parrot, M. (FR)
Santolík, Ondřej (UFA-U) RID, ORCID
Rodger, C. J. (GB)
Rycroft, M. J. (GB)
Hayosh, Mykhaylo (UFA-U) RID, ORCID
Shklyar, D. (RU)
Demekhov, A. (RU)Zdroj.dok. Journal of Geophysical Research - ISSN 0148-0227
Roč. 114, May 7 (2009), A05203/1-A05203/11Poč.str. 11 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova Magnetospheric Line Radiation ; MLR ; DEMETER Vědní obor RIV BL - Fyzika plazmatu a výboje v plynech CEZ AV0Z30420517 - UFA-U, BC-A (2005-2011) UT WOS 000265932400003 DOI 10.1029/2008JA014016 Anotace Magnetospheric line radiation (MLR) events are electromagnetic waves in the frequency range between about 1 and 8 kHz that, when presented as a frequency-time spectrogram, take the form of nearly parallel and clearly defined lines, which sometimes drift slightly in frequency. They have been observed both by satellites and ground-based instruments, but their origin is still unclear. We present a survey of these MLR waves observed by the DEMETER spacecraft (at an altitude of about 700 km). Three years of VLF Survey mode data were manually searched for MLR events, creating the largest event satellite database of about 650 events, which was then used to investigate the wave properties and geographical occurrence. Finally, the most favorable geomagnetic conditions (Kp and Dst indices) for the occurrence of MLR events have been found. It is shown that MLR events occur mostly at L > 2, they occur primarily inside the plasmasphere, and there is a lower number of events occurring over the Atlantic Ocean. 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 2013
Počet záznamů: 1