. "171181" . "[4309607ED71B]" . "RIV/68378289:_____/12:00375672" . . . . . "0148-0227" . . "Bure\u0161ov\u00E1, Dalia" . . "117" . . "-" . . "10.1029/2011JA017161" . "Athieno, R." . . "McKinnell, L.- A." . . . "\u0160indel\u00E1\u0159ov\u00E1, Tereza" . "8"^^ . "Ba\u0161e, Ji\u0159\u00ED" . . "000301478600003" . "La\u0161tovi\u010Dka, Jan" . . "Je prezentov\u00E1n statistick\u00FD v\u00FDzkum horizont\u00E1ln\u00EDho \u0161\u00ED\u0159en\u00ED 8\u201330 min gravita\u010Dn\u00EDch vln v ionosf\u00E9\u0159e b\u011Bhem jednoho roku od \u010Dervna 2010 do kv\u011Btna 2011. Gravita\u010Dn\u00ED vlny byly pozorov\u00E1ny prost\u0159ednictv\u00EDm Dopplerovsk\u00E9ho syst\u00E9mu instalovan\u00E9ho v \u010Cesk\u00E9 Republice a v Z\u00E1padn\u00EDm Kapsku v Ji\u017En\u00ED Africe. M\u011B\u0159en\u00ED gravita\u010Dn\u00EDch vln nad Ji\u017En\u00ED Afrikou dosud nebyla prezentov\u00E1na. Jak uk\u00E1zala m\u011B\u0159en\u00ED bl\u00EDzk\u00FDch ionosond, pozorovan\u00E9 vlny se \u0161\u00ED\u0159ily ve v\u00FD\u0161k\u00E1ch 150 a\u017E 250 km. Analyzovan\u00E9 vlny byly pozorov\u00E1ny zejm\u00E9na po v\u00FDchodu Slunce a okolo z\u00E1padu Slunce. Na\u0161e statistick\u00E1 studie ukazuje, \u017Ee pozorovan\u00E9 horizont\u00E1ln\u00ED rychlosti gravita\u010Dn\u00EDch vln jsou 70 a\u017E 250 m/s, pr\u016Fm\u011Brn\u00E9 rychlosti byly okolo 100 m/s v lok\u00E1ln\u00EDm l\u00E9t\u011B a 125 a\u017E 150 m/s v lok\u00E1ln\u00ED zim\u011B. Vlny se \u0161\u00ED\u0159ili p\u0159ibli\u017En\u011B sm\u011Brem k p\u00F3lu v lok\u00E1ln\u00EDm l\u00E9t\u011B a p\u0159ibli\u017En\u011B sm\u011Brem k rovn\u00EDku v lok\u00E1ln\u00ED zim\u011B. Z\u00E1padn\u00ED \u0161\u00ED\u0159en\u00ED bylo vz\u00E1cn\u00E9 nad \u010Ceskou Republikou, v\u00FDchodn\u00ED (jihov\u00FDchodn\u00ED) \u0161\u00ED\u0159en\u00ED nebylo prakticky pozorov\u00E1no nad Ji\u017En\u00ED Afrikou. Srovn\u00E1n\u00ED s rychlostmi neutr\u00E1ln\u00EDch v\u011Btr\u016F z\u00EDskan\u00FDch HWM07 modelem ukazuje, \u017Ee vlny se \u0161\u00ED\u0159ily p\u0159ibli\u017En\u011B proti proud\u011Bn\u00ED neutr\u00E1ln\u00EDch v\u011Btr\u016F ve v\u00FD\u0161k\u00E1ch pozorov\u00E1n\u00ED. Odhadovan\u00E9 horizont\u00E1ln\u00ED vlnov\u00E9 d\u00E9lky jsou v rozmez\u00ED 100 a\u017E 300 km."@en . "Journal of Geophysical Research" . "http://www.agu.org/pubs/crossref/2012/2011JA017161.shtml" . . "Horizontal velocities; Doppler sounding; GWs; Europe; South Africa"@en . . "Statistical investigation of horizontal propagation of gravity waves in the ionosphere over Europe and South Africa"@en . . "Je prezentov\u00E1n statistick\u00FD v\u00FDzkum horizont\u00E1ln\u00EDho \u0161\u00ED\u0159en\u00ED 8\u201330 min gravita\u010Dn\u00EDch vln v ionosf\u00E9\u0159e b\u011Bhem jednoho roku od \u010Dervna 2010 do kv\u011Btna 2011. Gravita\u010Dn\u00ED vlny byly pozorov\u00E1ny prost\u0159ednictv\u00EDm Dopplerovsk\u00E9ho syst\u00E9mu instalovan\u00E9ho v \u010Cesk\u00E9 Republice a v Z\u00E1padn\u00EDm Kapsku v Ji\u017En\u00ED Africe. M\u011B\u0159en\u00ED gravita\u010Dn\u00EDch vln nad Ji\u017En\u00ED Afrikou dosud nebyla prezentov\u00E1na. Jak uk\u00E1zala m\u011B\u0159en\u00ED bl\u00EDzk\u00FDch ionosond, pozorovan\u00E9 vlny se \u0161\u00ED\u0159ily ve v\u00FD\u0161k\u00E1ch 150 a\u017E 250 km. Analyzovan\u00E9 vlny byly pozorov\u00E1ny zejm\u00E9na po v\u00FDchodu Slunce a okolo z\u00E1padu Slunce. Na\u0161e statistick\u00E1 studie ukazuje, \u017Ee pozorovan\u00E9 horizont\u00E1ln\u00ED rychlosti gravita\u010Dn\u00EDch vln jsou 70 a\u017E 250 m/s, pr\u016Fm\u011Brn\u00E9 rychlosti byly okolo 100 m/s v lok\u00E1ln\u00EDm l\u00E9t\u011B a 125 a\u017E 150 m/s v lok\u00E1ln\u00ED zim\u011B. Vlny se \u0161\u00ED\u0159ili p\u0159ibli\u017En\u011B sm\u011Brem k p\u00F3lu v lok\u00E1ln\u00EDm l\u00E9t\u011B a p\u0159ibli\u017En\u011B sm\u011Brem k rovn\u00EDku v lok\u00E1ln\u00ED zim\u011B. Z\u00E1padn\u00ED \u0161\u00ED\u0159en\u00ED bylo vz\u00E1cn\u00E9 nad \u010Ceskou Republikou, v\u00FDchodn\u00ED (jihov\u00FDchodn\u00ED) \u0161\u00ED\u0159en\u00ED nebylo prakticky pozorov\u00E1no nad Ji\u017En\u00ED Afrikou. Srovn\u00E1n\u00ED s rychlostmi neutr\u00E1ln\u00EDch v\u011Btr\u016F z\u00EDskan\u00FDch HWM07 modelem ukazuje, \u017Ee vlny se \u0161\u00ED\u0159ily p\u0159ibli\u017En\u011B proti proud\u011Bn\u00ED neutr\u00E1ln\u00EDch v\u011Btr\u016F ve v\u00FD\u0161k\u00E1ch pozorov\u00E1n\u00ED. Odhadovan\u00E9 horizont\u00E1ln\u00ED vlnov\u00E9 d\u00E9lky jsou v rozmez\u00ED 100 a\u017E 300 km." . "Chum, Jaroslav" . "Hru\u0161ka, Franti\u0161ek" . "6"^^ . . "Statistical investigation of horizontal propagation of gravity waves in the ionosphere over Europe and South Africa" . "13"^^ . . . "US - Spojen\u00E9 st\u00E1ty americk\u00E9" . . "Statistical investigation of horizontal propagation of gravity waves in the ionosphere over Europe and South Africa"@en . "RIV/68378289:_____/12:00375672!RIV12-AV0-68378289" . "P(GA205/07/1367), P(GA205/09/1253), Z(AV0Z30420517)" . . . "Statistical investigation of horizontal propagation of gravity waves in the ionosphere over Europe and South Africa" . . . .