. . "Ion temperature in the outer ionosphere - first version of a global empirical model"@en . "Truhl\u00EDk, Vladim\u00EDr" . "568971" . "Ion temperature in the outer ionosphere - first version of a global empirical model" . "1998;2003" . . . "P(GP205/02/P037), P(IAA3042201), P(ME 651), Z(AV0Z3042911)" . "T\u0159\u00EDskov\u00E1, Ludmila" . "Ion temperature in the outer ionosphere - first version of a global empirical model"@en . "9" . . . . "Advances in Space Research" . . "The data set of the ion temperature (Ti) recently derived from the retarding potential analyzer (RPA) volt-ampere characteristics measured during the ACTIVE mission (Intercosmos 24, perigee 500 km, apogee 2500 km, inclination 83 , time period 1989-1993) was used to study the global distribution of Ti at solar maximum. The first version of a global empirical model has been constructed for altitude levels of 550, 900, and 1500 km, local time and 90 latitude. At these fixed altitudes Ti was represented by a system of associated Legendre polynomials (up to the 6th order) in terms of magnetic local time and latitude coordinates. Comparison of the model values with IRI (International Reference Ionosphere) shows a good agreement at the altitude of 550 km. Above 1000 km IRI shows higher Ti values during the day and lower Ti during the night. Behavior of model ion and electron temperatures is discussed" . . . "Iontov\u00E1 teplota ve vn\u011Bj\u0161\u00ED ionosf\u00E9\u0159e - prvn\u00ED verze glob\u00E1ln\u00EDho empirick\u00E9ho modelu"@cs . . "plasma temperatures; topside ionosphere; empirical models"@en . . . "NL - Nizozemsko" . "RIV/68378289:_____/04:00104036" . "Soubor dat o iontov\u00E9 teplot\u011B (Ti) ned\u00E1vno odvozen\u00FD z volt-amp\u00E9rov\u00FDch charakteristik p\u0159\u00EDstroje RPA (Retarding Potential Analzyer), kter\u00FD m\u011B\u0159il v r\u00E1mci mise ACTIVE (perigeum 500 km, apogeum 2500 km, inklinace 85\u00B0, roky 1989 -1993), byl vyu\u017Eit ke studiu glob\u00E1ln\u00EDho rozd\u011Blen\u00ED Ti ve slune\u010Dn\u00EDm maximu. Byla vypracov\u00E1na prvn\u00ED verze glob\u00E1ln\u00EDho empirick\u00E9ho modelu pro v\u00FD\u0161ky 550, 900 a 1500 km, pro v\u0161echny m\u00EDstn\u00ED \u010Dasy a v\u0161echny \u0161\u00ED\u0159ky. V pevn\u00FDch v\u00FD\u0161kov\u00FDch hladin\u00E1ch byla Ti reprezentov\u00E1na systemem p\u0159idru\u017Een\u00FDch Legendreov\u00FDch polynom\u016F do 6. \u0159\u00E1du v s\u00EDti magnetick\u00FD lok\u00E1ln\u00ED \u010Das vs \u0161\u00ED\u0159ka. Srovn\u00E1n\u00ED modelov\u00FDch hodnot s modelem IRI (International Reference Ionosphere) ukazuje dobr\u00FD souhlas pro 550 km. Nad 1000 km vykazuje IRI hodnoty Ti podstatn\u011B vy\u0161\u0161\u00ED v denn\u00EDch a podstatn\u011B ni\u017E\u0161\u00ED v no\u010Dn\u00EDch hodin\u00E1ch ne\u017E p\u0159edlo\u017Een\u00FD model. Je diskutov\u00E1no chov\u00E1n\u00ED iontov\u00E9 a elektronov\u00E9 teploty"@cs . . . . . "[780B808137BF]" . . "0273-1177" . . "Smirnova, N. F." . . "\u0160milauer, Jan" . "3"^^ . "Iontov\u00E1 teplota ve vn\u011Bj\u0161\u00ED ionosf\u00E9\u0159e - prvn\u00ED verze glob\u00E1ln\u00EDho empirick\u00E9ho modelu"@cs . "4"^^ . "4"^^ . . "The data set of the ion temperature (Ti) recently derived from the retarding potential analyzer (RPA) volt-ampere characteristics measured during the ACTIVE mission (Intercosmos 24, perigee 500 km, apogee 2500 km, inclination 83 , time period 1989-1993) was used to study the global distribution of Ti at solar maximum. The first version of a global empirical model has been constructed for altitude levels of 550, 900, and 1500 km, local time and 90 latitude. At these fixed altitudes Ti was represented by a system of associated Legendre polynomials (up to the 6th order) in terms of magnetic local time and latitude coordinates. Comparison of the model values with IRI (International Reference Ionosphere) shows a good agreement at the altitude of 550 km. Above 1000 km IRI shows higher Ti values during the day and lower Ti during the night. Behavior of model ion and electron temperatures is discussed"@en . "Ion temperature in the outer ionosphere - first version of a global empirical model" . "34" . "RIV/68378289:_____/04:00104036!RIV/2005/AV0/A04005/N" .