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Identifying the source region of plasmaspheric hiss
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SYSNO ASEP 0445231 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Identifying the source region of plasmaspheric hiss Author(s) Laakso, H. (NL)
Santolík, Ondřej (UFA-U) RID, ORCID
Horne, R. (GB)
Kolmašová, Ivana (UFA-U) RID, ORCID
Escoubet, P. (NL)
Masson, A. (ES)
Taylor, P. (NL)Number of authors 7 Source Title Geophysical Research Letters. - : Wiley - ISSN 0094-8276
Roč. 42, č. 9 (2015), s. 3141-3149Number of pages 9 s. Language eng - English Country US - United States Keywords plasmaspheric hiss ; plasmaspheric drainage plumes ; plasmasphere ; equatorial region of plumes Subject RIV BL - Plasma and Gas Discharge Physics R&D Projects LH12231 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UFA-U - RVO:68378289 UT WOS 000355878300010 EID SCOPUS 84930480188 DOI 10.1002/2015GL063755 Annotation The presence of the plasmaspheric hiss emission around the Earth has been known for more than 50 years, but its origin has remained unknown in terms of source location and mechanism. The hiss, made of whistler mode waves, exists for most of the time in the plasmasphere and is believed to control the radiation belt surrounding the Earth which makes its understanding very important. This paper presents direct observational evidence that the plasmaspheric hiss originates in the equatorial region of the plasmaspheric drainage plumes. It shows that the emissions propagate along the magnetic field lines and away from the equator in the plumes but toward the equator at lower L shells inside the plasmasphere. The observations also suggest that the hiss waves inside the plasmasphere are absorbed as they cross the equator. 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 2016
Number of the records: 1