10.18710/UIT4SN Tromsø Geophysical Observatory UiT The Arctic University of Norway DataverseNO 2019 Earth and Environmental Sciences Physics ionodata ionosonde ionosphere ionogram aurora SUN-EARTH INTERACTIONS UiT The Arctic University of Norway UiT The Arctic University of Norway UiT The Arctic University of Norway Johnsen, Magnar Gulliksen Magnar Gulliksen Johnsen UiT The Arctic University of Norway Hall, Chris Chris Hall UiT The Arctic University of Norway Tromsø Geophysical Observatory, UiT The Arctic University of Norway Tromsø Geophysical Observatory, UiT The Arctic University of Norway 2019-02-08 2019-02-08 2022-07-04 1994-01-01/1994-01-31 ionosonde data /~uap/apuar/apuar17/PUA1713.pdf 10.18710/UIT4SN/FMWPK6 10.18710/UIT4SN/W8BDG9 347698 1854 2322 847611 application/zip text/plain text/plain application/zip 2.0 Creative Commons CC0 1.0 Universal Public Domain Dedication. <p>About this dataset: This dataset contains ionosonde data in SAO format, and covers data from January 01-31, 1994.</p><p>About the Tromsø Ionosonde (1993-present): Since 1980, the ionosonde was situated at 69° 35' N, 19° 13' E at Ramfjordmoen near Tromsø, Norway and operated by the Auroral Observatory of the University of Tromsø and later on, in collaboration with QinetiQ. The Lowell ionosonde replaced the Auroral Observatory unit in 1992; see the related publication for details.</p> TGO Ionosonde Data Norway, Troms,, Ramfjordmoen, 19.216667 69.583333