About: Propagation of whistler mode chorus to low altitudes: Spacecraft observations of structured ELF hiss

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About: Propagation of whistler mode chorus to low altitudes: Spacecraft observations of structured ELF hiss Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We interpret observations of low-altitude electromagnetic ELF hiss observed on the dayside at subauroral latitudes. A divergent propagation pattern has been reported between 50_ and 75_ of geomagnetic latitude. The waves propagate with downward directed wave vectors which are slightly equatorward inclined at lower magnetic latitudes and slightly poleward inclined at higher latitudes. Reverse ray tracing using different plasma density models indicates a possible source region near the geomagnetic equator at a radial distance between 5 and 7 Earth radii by a mechanism acting on highly oblique wave vectors near the local Gendrin angle. We analyze waveforms received at altitudes of 700–1200 km by the Freja and DEMETER spacecraft and we find that low-altitude ELF hiss contains discrete time-frequency structures resembling wave packets of whistler mode chorus. Emissions of chorus also predominantly occur on the dawnside and dayside. We interpret observations of low-altitude electromagnetic ELF hiss observed on the dayside at subauroral latitudes. A divergent propagation pattern has been reported between 50_ and 75_ of geomagnetic latitude. The waves propagate with downward directed wave vectors which are slightly equatorward inclined at lower magnetic latitudes and slightly poleward inclined at higher latitudes. Reverse ray tracing using different plasma density models indicates a possible source region near the geomagnetic equator at a radial distance between 5 and 7 Earth radii by a mechanism acting on highly oblique wave vectors near the local Gendrin angle. We analyze waveforms received at altitudes of 700–1200 km by the Freja and DEMETER spacecraft and we find that low-altitude ELF hiss contains discrete time-frequency structures resembling wave packets of whistler mode chorus. Emissions of chorus also predominantly occur on the dawnside and dayside. (en) Šíření vln typu chorus do nízkých šířek: družicová pozorování. (cs)
Title	Propagation of whistler mode chorus to low altitudes: Spacecraft observations of structured ELF hiss Šíření vln typu chorus do nízkých šířek: družicová pozorování (cs) Propagation of whistler mode chorus to low altitudes: Spacecraft observations of structured ELF hiss (en)
skos:prefLabel	Propagation of whistler mode chorus to low altitudes: Spacecraft observations of structured ELF hiss Šíření vln typu chorus do nízkých šířek: družicová pozorování (cs) Propagation of whistler mode chorus to low altitudes: Spacecraft observations of structured ELF hiss (en)
skos:notation	RIV/68378289:_____/06:00045530!RIV07-AV0-68378289
http://linked.open.../vavai/riv/strany	A10208/1;A10208/13
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(IAA301120601), P(ME 842), Z(AV0Z30420517)
http://linked.open...iv/cisloPeriodika	A10
http://linked.open...vai/riv/dodaniDat	2007
http://linked.open...aciTvurceVysledku	Chum, Jaroslav Santolík, Ondřej
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyziky atmosféry AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	495554
http://linked.open...ai/riv/idVysledku	RIV/68378289:_____/06:00045530
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Space physics; Waves in plasmas (en)
http://linked.open.../riv/klicoveSlovo	Space physics Waves in plasmas
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[F2C8CE5B4643]
http://linked.open...i/riv/nazevZdroje	Journal of Geophysical Research
http://linked.open...in/vavai/riv/obor	BL
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	http://linked.opendata.cz/resource/domain/vavai/projekt/ME%20842 Investigation of plasma waves in the magnetosphere and in the solar wind
http://linked.open...UplatneniVysledku	2006
http://linked.open...v/svazekPeriodika	111
http://linked.open...iv/tvurceVysledku	Chum, Jaroslav Parrot, M. Santolík, Ondřej Gurnett, D. A. Pickett, J. S. Cornilleau-Wehrlin, N.
http://linked.open...n/vavai/riv/zamer	Studium atmosférického obalu Země v interakci s pozemskými a kosmickými vlivy
issn	0148-0227
number of pages	13 (xsd:int)

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