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Title: Investigation of natural and artificial stimulation of the ionospheric Alfvén resonator at high latitude
Authors: Yeoman, Tim K.
Scoffield, H. C.
Wright, D. M.
Baddeley, L. J.
Vasilyev, A. N.
Semenova, N. V.
First Published: 1-Sep-2008
Publisher: Elsevier
Citation: Advances in Space Research, 2008, 42 (5), pp. 957-963.
Abstract: A brief review is provided of recent progress in understanding the ionospheric Alfvén resonator (IAR) at high latitude. Firstly, naturally occurring resonances of the IAR as detected by pulsation magnetometers in the auroral zone at Sodankylä and in the polar cap at Barentsburg are considered. The characteristics of the IAR in the two regions are broadly similar, although the effects of solar illumination are less clear at the higher latitudes. Secondly we review recent attempts to stimulate the IAR through high-power radio frequency experiments both in the auroral zone at Tromsø with the European Incoherent SCATter (EISCAT) heater, and within the polar cap at Longyearbyen with the Space Plasma Exploration by Active Radar (SPEAR) facility. In the auroral zone at, Tromsø the stimulated IAR has been observed by ground-based magnetometers, and through electron acceleration observed on the FAST spacecraft. At SPEAR in the polar cap, the stimulated IAR has been investigated, with ground magnetometers, with the first results indicative of a positive detection.
DOI Link: 10.1016/j.asr.2007.03.083
ISSN: 0273-1177
Type: Article
Rights: This is the author's final draft of the paper published as Advances in Space Research, 2008, 42 (5), pp. 957-963. The final version is available from Doi: 10.1016/j.asr.2007.03.083
Appears in Collections:Published Articles, Dept. of Physics and Astronomy

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