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Annales Geophysicae An interactive open-access journal of the European Geosciences Union
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Volume 16, issue 11
Ann. Geophys., 16, 1519–1522, 1998
https://doi.org/10.1007/s00585-998-1519-2
© European Geosciences Union 1998
Ann. Geophys., 16, 1519–1522, 1998
https://doi.org/10.1007/s00585-998-1519-2
© European Geosciences Union 1998

  30 Nov 1998

30 Nov 1998

Letter to the Editor: First complementary observations by ionospheric tomography, the EISCAT Svalbard radar and the CUTLASS HF radar

C. N. Mitchell1, I. K. Walker1, S. E. Pryse1, I. Kersley1, I. W. McCrea2, and T. B. Jones3 C. N. Mitchell et al.
  • 1Department of Physics, The University of Wales, Aberystwyth, SY23 3BZ, UK
  • 2Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, OX11 0QX, UK
  • 3Department of Physics and Astronomy, University of Leicester, Leicester, LE1 7RH, UK

Abstract. Experimental results are presented from ionospheric tomography, the EISCAT Svalbard radar and the CUTLASS HF radar. Tomographic measurements on 10 October 1996, showing a narrow, field-aligned enhancement in electron density in the post-noon sector of the dayside auroral zone, are related to a temporal increase in the plasma concentration observed by the incoherent scatter radar in the region where the HF radar indicated a low velocity sunwards convection. The results demonstrate the complementary nature of these three instruments for polar-cap ionospheric studies.

Key words. Ionosphere · Auroral ionosphere · Polar ionosphere · Radio science (ionospheric physics)

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