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

Gustavsson B. | Zendy; Rietveld M. T. | Zendy; Ivchenko N. V. | Zendy; Kosch M. J. | Zendy

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

Author(s) -

Gustavsson B.,

Rietveld M. T.,

Ivchenko N. V.,

Kosch M. J.

Publication year - 2010

Publication title -

journal of geophysical research: space physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.67

H-Index - 298

eISSN - 2156-2202

pISSN - 0148-0227

DOI - 10.1029/2010ja015873

Subject(s) - ionosphere , electron , incoherent scatter , electron temperature , high frequency , physics , computational physics , radio frequency , joule heating , ohmic contact , radio wave , atomic physics , plasma , dielectric heating , materials science , geophysics , dielectric , optoelectronics , telecommunications , electrode , quantum mechanics , computer science

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.

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