About: Propagation of Gravity waves in the ionosphere from multi-point Doppler sounding

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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	Multi-point observations by Doppler sounding system makes it possible to investigate propagation of Gravity Waves (GWs) in the ionosphere. The system operating at two different frequencies (3.59 MHz and 4.27 MHz) is located in the Central Europe, Czech Republic. Similar multi-point system operating at only one frequency was also installed in Western Cape in South Africa (f3.59 MHz) and in Northern Argentina, in the vicinity of Tucuman (f4.63 MHz). Simultaneous measurements of near-by ionosondes are used to estimate reflection heights of the transmitted frequency . The largest fluctuations of Doppler shift (wave activity) are observed when the sounding radio waves reflect at altitudes from 150 to 250 km (sometimes up to 300 km), i.e. mainly in the F layer. Multi-point observations by Doppler sounding system makes it possible to investigate propagation of Gravity Waves (GWs) in the ionosphere. The system operating at two different frequencies (3.59 MHz and 4.27 MHz) is located in the Central Europe, Czech Republic. Similar multi-point system operating at only one frequency was also installed in Western Cape in South Africa (f3.59 MHz) and in Northern Argentina, in the vicinity of Tucuman (f4.63 MHz). Simultaneous measurements of near-by ionosondes are used to estimate reflection heights of the transmitted frequency . The largest fluctuations of Doppler shift (wave activity) are observed when the sounding radio waves reflect at altitudes from 150 to 250 km (sometimes up to 300 km), i.e. mainly in the F layer. (en)
Title	Propagation of Gravity waves in the ionosphere from multi-point Doppler sounding Propagation of Gravity waves in the ionosphere from multi-point Doppler sounding (en)
skos:prefLabel	Propagation of Gravity waves in the ionosphere from multi-point Doppler sounding Propagation of Gravity waves in the ionosphere from multi-point Doppler sounding (en)
skos:notation	RIV/68378289:_____/13:00426474!RIV14-MSM-68378289
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(7AMB12AR018)
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Hruška, František Chum, Jaroslav Burešová, Dalia Baše, Jiří Laštovička, Jan Šindelářová, Tereza
http://linked.open.../riv/druhVysledku	O - Ostatní výsledky nezařaditelné do žádného z výše uvedených druhů výsledku
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	100355
http://linked.open...ai/riv/idVysledku	RIV/68378289:_____/13:00426474
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	gravity waves; ionosphere; wave propagation; remote sensing (en)
http://linked.open.../riv/klicoveSlovo	ionosphere remote sensing wave propagation gravity waves
http://linked.open...ontrolniKodProRIV	[E4172D68CFC1]
http://linked.open...in/vavai/riv/obor	DG
http://linked.open...ichTvurcuVysledku	6 (xsd:int)
http://linked.open...cetTvurcuVysledku	8 (xsd:int)
http://linked.open...vavai/riv/projekt	Magnetosphere-ionosphere-troposphere coupling and its impact on ionospheric variability
http://linked.open...UplatneniVysledku	2013
http://linked.open...iv/tvurceVysledku	Burešová, Dalia Cabrera, M. A. Chum, Jaroslav Hruška, František Baše, Jiří Laštovička, Jan Šindelářová, Tereza McKinnell, L. A.

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