Rise and fall of electron temperatures: Ohmic heating of ionospheric electrons from underdense HF radio wave pumping

Gustavsson, B. and Rietveld, M.T. and Ivchenko, N.V. and Kosch, M.J. (2010) Rise and fall of electron temperatures: Ohmic heating of ionospheric electrons from underdense HF radio wave pumping. Journal of Geophysical Research, 115 (A12332). pp. 1-9. ISSN 0148-0227

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Abstract

Here we present electron temperature variations observed with incoherent scatter radar during a European Incoherent Scatter Scientific Association Heating experiment with high-frequency (HF) radio wave transmission at frequencies above the peak ionospheric critical frequency. The electron temperature increased from 2000 K up to 2800 K during the HF transmission periods. During the experiment both pump frequency and polarization were altered between pump pulses. The observed temperature variation is compared with numerical solutions to the electron energy equation with ohmic heating modeling the effect of the radio wave heating of the plasma. Agreement between observations and model is found to be good.

Item Type:
Journal Article
Journal or Publication Title:
Journal of Geophysical Research
Additional Information:
Copyright (2010) American Geophysical Union. Further reproduction or electronic distribution is not permitted.
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1900/1912
Subjects:
ID Code:
35540
Deposited By:
Deposited On:
21 Jan 2011 12:02
Refereed?:
Yes
Published?:
Published
Last Modified:
25 Oct 2020 01:31