About: Multipoint investigation of the source region of storm-time chorus

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	In this case study we investigate the source region of whistler-mode chorus located close to the geomagnetic equator at a radial distance of 4.4 Earth radii. We use measurements from the four Cluster spacecraft at separations of less than a few hundreds of km, recorded during the geomagnetic storm of 18 April 2002. The waveforms of the electric field fluctuations were obtained by theWBD instruments in the frequency range 50 Hz-9.5 kHz. Using these data, we calculate linear and rank correlation coefficients of the frequency averaged power-spectral density measured by the different spacecraft. Those coefficients have been recently shown to decrease with spacecraft separation distance perpendicular to the static magnetic field (Santolík and Gurnett, 2003) with a characteristic scale length of 100 km. We find this characteristic scale varying between 60 and 200 km for different data intervals inside the source region. In this case study we investigate the source region of whistler-mode chorus located close to the geomagnetic equator at a radial distance of 4.4 Earth radii. We use measurements from the four Cluster spacecraft at separations of less than a few hundreds of km, recorded during the geomagnetic storm of 18 April 2002. The waveforms of the electric field fluctuations were obtained by theWBD instruments in the frequency range 50 Hz-9.5 kHz. Using these data, we calculate linear and rank correlation coefficients of the frequency averaged power-spectral density measured by the different spacecraft. Those coefficients have been recently shown to decrease with spacecraft separation distance perpendicular to the static magnetic field (Santolík and Gurnett, 2003) with a characteristic scale length of 100 km. We find this characteristic scale varying between 60 and 200 km for different data intervals inside the source region. (en) Zabýváme se zdrojovou oblastí emisí typu chorus poblíže geomagnetického rovníku (cs)
Title	Multipoint investigation of the source region of storm-time chorus Vícebodová analýza zdroje emisí typu chorus (cs) Multipoint investigation of the source region of storm-time chorus (en)
skos:prefLabel	Multipoint investigation of the source region of storm-time chorus Vícebodová analýza zdroje emisí typu chorus (cs) Multipoint investigation of the source region of storm-time chorus (en)
skos:notation	RIV/68378289:_____/04:00109620!RIV/2005/AV0/A04005/N
http://linked.open.../vavai/riv/strany	2555;2563
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA202/03/0832), P(ME 650), Z(AV0Z3042911), Z(MSM 113200004)
http://linked.open...iv/cisloPeriodika	7
http://linked.open...vai/riv/dodaniDat	2005
http://linked.open...aciTvurceVysledku	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	575063
http://linked.open...ai/riv/idVysledku	RIV/68378289:_____/04:00109620
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Magnetospheric physics (waves in plasma, storms and substorms); Space plasma physics (waves and instabilities) (en)
http://linked.open.../riv/klicoveSlovo	Magnetospheric physics (waves in plasma Space plasma physics (waves and instabilities) storms and substorms)
http://linked.open...odStatuVydavatele	DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV	[C1429786364F]
http://linked.open...i/riv/nazevZdroje	Annales Geophysicae
http://linked.open...in/vavai/riv/obor	BL
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	http://linked.opendata.cz/resource/domain/vavai/projekt/ME%20650 Investigation of propagation and nonlinear interactions of waves in plasmas
http://linked.open...UplatneniVysledku	2004
http://linked.open...v/svazekPeriodika	22
http://linked.open...iv/tvurceVysledku	Santolík, Ondřej Gurnett, D. A. Pickett, J. S.
http://linked.open...n/vavai/riv/zamer	Investigations of selected processes in the Earth's atmosphere http://linked.opendata.cz/resource/domain/vavai/zamer/MSM%20113200004
issn	0992-7689
number of pages	9 (xsd:int)

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