Blar i forfatter "Bland, Emma"

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    • Energetic electron precipitation occurrence rates determined using the Syowa East SuperDARN Radar 

      Bland, Emma; Partamies, Noora; Heino, Erkka; Yukimatu, Akira Sessai; Miyaoka, Hiroshi (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-07-04)
      We demonstrate that the Super Dual Auroral Radar Network (SuperDARN) radar at Syowa station, Antarctica, can be used to detect high frequency radio wave attenuation in the <i>D</i> region ionosphere during energetic electron precipitation (EEP) events. EEP‐related attenuation is identified in the radar data as a sudden reduction in the backscatter power and background noise parameters. We focus ...

    • SuperDARN radar-derived HF radio attenuation during the September 2017 solar proton events 

      Bland, Emma; Heino, Erkka Petteri; Kosch, Michael J.; Partamies, Noora (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-08-10)
      Two solar proton events in September 2017 had a significant impact on the operation of the Super Dual Auroral Radar Network (SuperDARN), a global network of high‐frequency (HF) radars designed for observing F region ionospheric plasma convection. Strong polar cap absorption caused near‐total loss of radar backscatter, which prevented the primary SuperDARN data products from being determined for a ...