We have over 12,000 students, from over 100 countries, within one of the safest campuses in the UK


97% of Lancaster students go into work or further study within six months of graduating

Home > Research > Publications & Outputs > RF heating in a strong auroral electrojet
View graph of relations

« Back

RF heating in a strong auroral electrojet

Research output: Contribution to journalJournal article


  • T. R. Robinson
  • G. Bond
  • P. Eglitis
  • F. Honary
  • M. T. Rietveld
<mark>Journal publication date</mark>1998
<mark>Journal</mark>Advances in Space Research
Number of pages4
<mark>Original language</mark>English


Results are reported from experiments in which the high power HF facility at Tromsø, Norway was employed to modify the Hall current region of the auroral ionosphere during periods when the electrojet became enhanced. During conditions characterised by a weak electrojet and completely underdense heating, observations indicated that RF heating leads to the expected increase in the electron temperature, inferred from EISCAT UHF radar measurements, at all altitudes between 100 and 135 km. However, under conditions characterised by a strong electrojet and slightly underdense heating, observations indicated that RF heating appeared to reduce the electrojet electron temperature, in the altitude range 100–115 km, whilst still enhancing the electron temperatures in the layers above the electrojet, in the altitude range 120–135 km. These, somewhat surprising, results are discussed in terms of a theory of the interaction between high power electromagnetic waves and irregularities excited by the Farley-Buneman instability at electrojet altitudes.