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Annales Geophysicae An interactive open-access journal of the European Geosciences Union
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Volume 18, issue 2
Ann. Geophys., 18, 209–214, 2000
https://doi.org/10.1007/s00585-000-0209-5
© European Geosciences Union 2000
Ann. Geophys., 18, 209–214, 2000
https://doi.org/10.1007/s00585-000-0209-5
© European Geosciences Union 2000

  29 Feb 2000

29 Feb 2000

Plasma density over Svalbard during the ISBJØRN campaign

C. M. Hall1, A. P. van Eyken2, and K. R. Svenes3 C. M. Hall et al.
  • 1Department of Physics, University of Tromsø, N-9037 Tromsø, Norway
  • 2EISCAT Scientific Association, N-9170 Longyearbyen, Norway
  • 3Norwegian Defence Research Establishment, P.O. Box 25, N-2027 Kjeller, Norway
  • Correspondence to: C. M. Hall, e-mail: chris.hall@hys.uit.no

Abstract. In 1997, reliable operation of the EISCAT Svalbard Radar (ESR) was achieved and a rocket launching facility at Ny Ålesund on Svalbard (79°N, 12°E) (SVALRAK) was established. On 20 November, 1977, the first instrumented payload was launched from SVALRAK. Although the payload configuration had been flown many times previously from Andøya Rocket Range on the Norwegian mainland, this presented an unprecedented in situ determination of positive ion density over Svalbard. Simultaneously, ESR measured similar density profiles but in a higher altitude regime. We have combined the ESR measurements with ionosonde data to establish a calibration and subsequently combined the ground-based and in situ determined profiles to give a composite positive ion density profile from the mesosphere to the thermosphere.

Key words: Ionosphere (polar ionosphere; instruments and techniques)

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