"On the storm-time F1 region in mid-latitude Europe."@en . "Data from ionospheric stations in the COST 271 area are used for the investigation of the storm-time changes in the F1 region ionization. The study included data of NmF1 and hmF1 determined from electron density profiles obtained by the POLAN programme. From the point of view of interpretation, the knowledge of hmF1 is of basic inportance. However, hmF1 can only be determined by means of the assignment of NmF1. The main problem was the establishment of these parameters." . "Bure\u0161ov\u00E1, Dalia" . . . "2003-10-02+02:00"^^ . "2"^^ . . . "Communications COST 271: Effects of the upper atmosphere on terrestrial and Earth-space." . "ionosphere; F1 region; geomagnetic storm"@en . "La\u0161tovi\u010Dka, Jan" . . . "RIV/68378289:_____/03:04033556!RIV/2004/AV0/A04004/N" . "P(IAA3042101), Z(AV0Z3042911)" . . "619511" . . . . "1"^^ . . "Data from ionospheric stations in the COST 271 area are used for the investigation of the storm-time changes in the F1 region ionization. The study included data of NmF1 and hmF1 determined from electron density profiles obtained by the POLAN programme. From the point of view of interpretation, the knowledge of hmF1 is of basic inportance. However, hmF1 can only be determined by means of the assignment of NmF1. The main problem was the establishment of these parameters."@en . "On the storm-time F1 region in mid-latitude Europe."@en . "Appleton-Rutherford Laboratory" . "[6A9340FF3AE4]" . "Bencze, P." . . "On the storm-time F1 region in mid-latitude Europe." . . "On the storm-time F1 region in mid-latitude Europe." . "Faro [PT]" . "X1-X5" . "Oxford" . . . . . . "3"^^ . "0"^^ . "RIV/68378289:_____/03:04033556" . . "0"^^ .