An analysis of the topside ionosphere parameters based on the long-duration Irkutsk incoherent scatter radar measurements |
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Authors: | KG Ratovsky BG ShpynevAV Oinats AV Medvedev |
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Institution: | Institute of Solar-Terrestrial Physics, 126a Lermontov St., P.O. Box 291, Irkutsk 664033, Russia |
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Abstract: | The topside ionosphere parameters are studied based on the long-duration Irkutsk incoherent scatter radar (52.9N, 103.3E) measurements conducted in September 2005, June and December 2007. As a topside ionosphere parameter we chose the vertical scale height (VSH) related to the gradient of the electron density logarithm above the peak height. For morphological studies we used median electron density profiles. Besides the median behavior we also studied VSH disturbances (deviations from median values) during the magnetic storm of September 11th 2005. We compared the Irkutsk incoherent scatter radar data with the Millstone Hill and Arecibo incoherent scatter radar observations, the IRI-2007 prediction (using the two topside options) and VSH derived from the Irkutsk DPS-4 Digisonde bottomside measurements. |
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Keywords: | Topside ionosphere Incoherent scatter radar Irkutsk Digisonde Plasma temperature and density |
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