Rise and fall of electron temperatures: Ohmic heating of ionospheric electrons from underdense HF radio wave pumping
2010 (English)In: Journal of Geophysical Research, ISSN 0148-0227, Vol. 115, A12332- p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
2010. Vol. 115, A12332- p.
Astronomy, Astrophysics and Cosmology
IdentifiersURN: urn:nbn:se:kth:diva-29368DOI: 10.1029/2010JA015873ISI: 000285639800004ScopusID: 2-s2.0-78650948708OAI: oai:DiVA.org:kth-29368DiVA: diva2:394315
FunderSwedish Research Council
QC 201102022011-02-022011-02-012011-02-02Bibliographically approved