"0"^^ . . . "413"^^ . "1"^^ . "1"^^ . . . . . . "2,5-D model generace geomagnetick\u00E9ho pole"@cs . "0"^^ . "V sou\u010Dasn\u00E9 dob\u011B nen\u00ED re\u00E1ln\u00E9 pokusit se o pln\u011B 3-D modelov\u00E1n\u00ED generace geomagnetick\u00E9ho pole. Za ur\u010Dit\u00FDch p\u0159edpoklad\u016F (mal\u00E9 odchylky od osov\u00E9 symetrie) a rozlo\u017Een\u00ED jednoho rozm\u011Bru (azimut\u00E1ln\u00EDho) do \u0159ady harmonick\u00FDch v\u0161ak lze \u0159e\u0161it t\u0159\u00EDrozm\u011Brn\u00FD probl\u00E9m i za sou\u010Dasn\u00E9ho stavu pozn\u00E1n\u00ED a s v\u00FDpo\u010Detn\u00ED technikou, kter\u00E1 je nyn\u00ED k dispozici. Z n\u011Bkolika mo\u017En\u00FDch p\u0159\u00EDstup\u016F jsme vybrali metodu, p\u0159i kter\u00E9 jsou osov\u011B nesymetrick\u00E9 slo\u017Eky magnetick\u00E9ho pole vy\u0159e\u0161eny analyticky a sestaven\u00E9 rovnice obsahuj\u00ED krom\u011B osov\u011B symetrick\u00FDch veli\u010Din pouze nesymetrick\u00E9 komponenty rychlosti a hnac\u00ED s\u00EDly. Tato metoda dovoluje sledovat tvar alfa efektu, kter\u00FD zprost\u0159edkov\u00E1v\u00E1 generaci poloid\u00E1ln\u00EDho pole od toroid\u00E1ln\u00EDho. Nesymetrick\u00E9 komponenty rychlosti a hnac\u00ED s\u00EDly budou p\u0159edstavov\u00E1ny v azimut\u00E1ln\u00EDm sm\u011Bru nejv\u00FD\u0161e n\u011Bkolika harmonick\u00FDmi. Vazba mezi zemsk\u00FDm j\u00E1drem a pl\u00E1\u0161t\u011Bm bude p\u0159edpokl\u00E1d\u00E1na a pokus\u00EDme se tak\u00E9 zahrnout rovnici pro hnac\u00ED s\u00EDlu, kter\u00E1 tak nebude v\u00EDce libovolnou funkc\u00ED."@cs . "At present a solution of a fully 3-D model of the geomagnetic field generation is difficult to obtain. However, this problem is possible to solve even with present knowledge and computers available, on a certain assumption (nearly symmetry) and by expanding one component (azimuthal) into the series of harmonics. From several possible approaches we have chosen a method where the axially non-symmetric components of magnetic field are solved analytically and the resultant equations contain besides axially symmetric quantities only non-symmetrical components of velocity and buoyancy. This method allowes us to observe a shape of alfa-effect, which is responsible for the generation of the poloidal field from the toroidal one. the non-symmetric components of the velocity and buoyancy will be expressed by using only a small number of harmonics in the azimuthal direction."@en . "938"^^ . . . . "2,5-D model of the geomagnetic field generation"@en . "1"^^ .