Upper hybrid effects in artificial ionization

Konstantinos Papadopoulos, Bengt Eliasson

Research output: Contribution to conferenceAbstractpeer-review


A most fascinating result of recent ionospheric experiments has been the discovery of artificial ionization by Pedersen et al. (GRL, 37, L02106, 2010). The Artificial Ionospheric Layers (AIL) were the result of F-region O-mode HF irradiation using the HAARP ionospheric heater operating at 3.6 MW power. As demonstrated by Eliasson et al. (JGR, 117, A10321, 2012) the physics controlling the observed phenomenon and its threshold can be summarized as: "Collisional ionization due to high energy (~ 20 eV) electron tails generated by the interaction of strong Langmuir turbulence with plasma heated at the upper hybrid resonance and transported at the reflection height". The objective of the current presentation is to explore the role of the upper hybrid heating in the formation of AIL and its implications to future experiments involving HF heaters operating in middle and equatorial latitudes.
Original languageEnglish
Publication statusPublished - 17 Dec 2014
EventAGU Fall Meeting - Moscone Center, San Francisco, United States
Duration: 15 Dec 201419 Dec 2014


ConferenceAGU Fall Meeting
Country/TerritoryUnited States
CitySan Francisco


  • ionization
  • ionosphere
  • upper hybrid heating
  • artificial ionospheric layers


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