Browsing Department of Physics and Technology by Author "Sandanger, Marit Irene J."

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    • Are EEP Events Important for the Tertiary Ozone Maximum? 

      Zawedde, Annet Eva; Nesse Tyssøy, Hilde; Stadsnes, Johan; Sandanger, Marit Irene J. (Peer reviewed; Journal article, 2019)
      Energetic particle precipitation (EPP) increases the production of odd hydrogen (HOX ) species in the mesosphere, which catalytically destroy ozone (O3) in sunlight. Hence, the EPP‐HOX impact on the tertiary O3 maximum ...

    • Intercomparison of the POES/MEPED Loss Cone Electron Fluxes With the CMIP6 Parametrization 

      Tyssøy, Hilde Nesse; Haderlein, Astrid; Sandanger, Marit Irene J.; Stadsnes, Johan (Peer reviewed; Journal article, 2019)
      Quantitative measurements of medium energy electron (MEE) precipitation (>40 keV) are a key to understand the total effect of particle precipitation on the atmosphere. The Medium Energy Proton and Electron Detector (MEPED) ...

    • Nitric Oxide Response to the April 2010 Electron Precipitation Event: Using WACCM and WACCM‐D With and Without Medium‐Energy Electrons 

      Smith-Johnsen, Christine; Marsh, Daniel R.; Orsolini, Yvan; Tyssøy, Hilde Nesse; Hendrickx, Koen; Sandanger, Marit Irene J.; Ødegaard, Linn-Kristine Glesnes; Stordal, Frode (Peer reviewed; Journal article, 2018-06-07)
      Energetic electrons from the magnetosphere deposit their energy in the atmosphere and lead to production of nitric oxide (NO) in the mesosphere and lower thermosphere. We study the atmospheric NO response to a geomagnetic ...