. "2009-10-22+02:00"^^ . . . "2008-04-25+02:00"^^ . . . "solar wind; interplanetary shock; magnetosheth; magnetopause; magnetic merging; geomagnetic storm"@en . "Solar wind events as predictors of geomagnetic response"@en . " magnetopause" . . "Ud\u00E1losti ve slune\u010Dn\u00EDm v\u011Btru jako prediktory magnetosf\u00E9rick\u00E9 aktivity" . "2006-01-01+01:00"^^ . "GA205/06/0875" . "Projekt se zab\u00FDval experiment\u00E1ln\u00EDm i teoretick\u00FDm v\u00FDzkumem faktor\u016F ovliv\u0148uj\u00EDc\u00EDch mo\u017Enost predikce geomagnetick\u00E9 aktivity na z\u00E1klad\u011B monitorov\u00E1n\u00ED slune\u010Dn\u00EDho v\u011Btru. V\u00FDsledky je mo\u017Eno shrnout n\u00E1sledovn\u011B: (1) magnetick\u00E1 oblaka generovan\u00E1 slune\u010Dn\u00EDm erupcemi na"@cs . "1"^^ . "solar wind" . "2"^^ . . "0"^^ . . . "The project deals with theoretical and experimental investigations of the factors that influence the predictability of the geomagnetic activity from solar wind monitoring. The results can be briefly described as follows: (1) magnetic clouds generated by"@en . . "V\u00FDzkum kosmick\u00E9ho plazmatu potvrdil za\u00A050 let\u00A0sv\u00E9 historie, \u017Ee geomagnetick\u00E1 aktivita \u00FAzce souvis\u00ED se zm\u011Bnami ve slune\u010Dn\u00EDm v\u011Btru (SV). Hmota a energie nesen\u00E1\u00A0SV pronik\u00E1 vlivem r\u016Fzn\u00FDch proces\u016F do vnit\u0159n\u00ED magnetosf\u00E9ry, kde se akumuluje a odkud je posl\u00E9ze uvol\u0148ov\u00E1na b\u011Bhem geomagnetick\u00FDch bou\u0159\u00ED a subbou\u0159\u00ED. Zm\u011Bna geomagnetick\u00E9ho pole b\u011Bhem t\u011Bchto ud\u00E1lost\u00ED m\u016F\u017Ee b\u00FDt tak velk\u00E1 a n\u00E1hl\u00E1, \u017Ee indukovan\u00E9 elektrick\u00E9 pole a zv\u00FD\u0161en\u00E9 toky energetick\u00FDch \u010D\u00E1stic mohou po\u0161kodit nebo zni\u010Dit energetick\u00E9 nebo komunika\u010Dn\u00ED syst\u00E9my. Je tedy \u017E\u00E1douc\u00ED tyto ud\u00E1losti s\u00A0dostate\u010Dn\u00FDm p\u0159edstihem p\u0159edikovat. V\u00A0projektu navrhujeme prov\u00E9st komplexn\u00ED studium cel\u00E9ho \u0159et\u011Bzce vedouc\u00EDho k\u00A0poruch\u00E1m geomagnetick\u00E9ho pole: (1) \u0161\u00ED\u0159en\u00ED a v\u00FDvoj poruch SV, (2) interakce t\u011Bchto poruch s\u00A0r\u00E1zovou vlnou a jejich modifikace v\u00A0p\u0159echodov\u00E9 oblasti, (3) pronik\u00E1n\u00ED SV\u00A0p\u0159es magnetopauzu za konstantn\u00EDch i poru\u0161en\u00FDch podm\u00EDnek a (4) odezva magnetosf\u00E9ry na n\u00E1hl\u00E9 zm\u011Bny meziplanet\u00E1rn\u00EDho magnetick\u00E9ho pole nebo parametr\u016F SV. Studie bude zalo\u017Eena na anal\u00FDze" . . . . " magnetic merging" . . . "Nearly 50 years of space investigations have shown that the geomagnetic activity is strongly coupled with a solar wind (SW) variability. SW mass and energy penetrate by a variety of processes into the magnetosphere, they are stored there, and then released causing geomagnetic storms and sub-storms. The change of the geomagnetic field during these sudden events can be so large and sharp that the induced electric field and/or enhanced fluxes of energetic particles can destroy industrial and communication systems. Consequently, it is desirable to predict such events but our knowledge of processes involved is still insufficient for this task. In this project, we suggest to carry out a comprehensive study of the whole chain leading to geomagnetic events: (1) propagation and evolution of solar wind disturbances, (2) interaction of these disturbances with the bow shock and their modification in the magnetosheath, (3) penetration of the SW through the magnetopause under steady and"@en . " magnetosheth" . . " interplanetary shock" . "33"^^ . "33"^^ . . "2008-12-31+01:00"^^ . . "http://www.isvav.cz/projectDetail.do?rowId=GA205/06/0875"^^ . .