Vorgeschichte

Im Jahre 1947 installierte Prof. Otto Burkard am Institut für Meteorologie und Geophysik der Karl-Franzens-Universität Graz eine Ionosonde. Gemessen wurden dabei zunächst die vom Boden ausgestrahlten und von der Ionosphäre reflektierten elektromagnetischen Wellen. Später wurde dieses Verfahren auf Satellitensignale ausgeweitet.

01.01.1947

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