Annales Geophysicae
Annales Geophysicae
ANGEO
Articles | Volume 35, issue 5
Articles | Volume 35, issue 5
https://doi.org/10.5194/angeo-35-1143-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/angeo-35-1143-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 35, issue 5
Regular paper
 | 
24 Oct 2017
Regular paper |  | 24 Oct 2017

Plasma line observations from the EISCAT Svalbard Radar during the International Polar Year

Nickolay Ivchenko, Nicola M. Schlatter, Hanna Dahlgren, Yasunobu Ogawa, Yuka Sato, and Ingemar Häggström

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Short summary
Photo-electrons and secondary electrons from particle precipitation enhance the incoherent scatter plasma line to levels sufficient for detection. A plasma line gives an accurate measure of the electron density and can be used to estimate electron temperature. The occurrence of plasma line enhancements in the EISCAT Svalbard Radar data was investigated. During summer daytime hours the plasma line is detectable in up to 90 % of the data. In winter time the occurrence is a few percent.
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