Journal cover Journal topic
Annales Geophysicae An open-access journal of the European Geosciences Union
Ann. Geophys., 35, 475-479, 2017
http://www.ann-geophys.net/35/475/2017/
doi:10.5194/angeo-35-475-2017
© Author(s) 2017. This work is distributed
under the Creative Commons Attribution 3.0 License.
ANGEO Communicates
22 Mar 2017
Relation of anomalous F region radar echoes in the high-latitude ionosphere to auroral precipitation
Hanna Dahlgren et al.

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Short summary
Anomalous strong echoes with three frequency peaks are occasionally seen with incoherent scatter radars in the ionosphere near 200 km altitude at high latitudes. We investigate how they relate to electron precipitation, by finding the resulting peak electron density and the height of the peak, respectively. We find that occurrence rate increases with density and decreases with height, indicating a correlation between the echoes and precipitating electrons with high energy and energy flux.
Anomalous strong echoes with three frequency peaks are occasionally seen with incoherent scatter...
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