Browsing Bergen Open Research Archive by Author "Clilverd, Mark A."

Now showing items 1-3 of 3

    • Impacts of UV Irradiance and Medium-Energy Electron Precipitation on the North Atlantic Oscillation during the 11-Year Solar Cycle 

      Guttu, Sigmund; Orsolini, Yvan; Stordal, Frode; Otterå, Odd Helge; Omrani, Nour-Eddine; Tartaglione, Nazario; Verronen, Pekka T.; Rodger, Craig J.; Clilverd, Mark A. (Journal article; Peer reviewed, 2021)
      Observational studies suggest that part of the North Atlantic Oscillation (NAO) variability may be attributed to the spectral ultra-violet (UV) irradiance variations associated to the 11-year solar cycle. The observed ...

    • Lower-thermosphere–ionosphere (LTI) quantities: current status of measuring techniques and models 

      Palmroth, Minna; Grandin, Maxime; Sarris, Theodoros E.; Doornbos, Eelco; Tourgaidis, Stylianos; Aikio, Anita; Buchert, Stephan C.; Clilverd, Mark A.; Dandouras, I; Heelis, Roderick A.; Hoffmann, A; Ivchenko, N.; Kervalishvili, G.; Knudsen, D.; Kotova, A; Liu, H.-L.; Malaspina, D; March, G.; Marchaudon, A; Marghitu, Octav; Matsuo, T; Miloch, Wojciech Jacek; Moretto, Therese; Mpaloukidis, D; Olsen, NIls; Pfaff, R.; Papadakis, K; Pirnaris, Panagiotis; Siemes, C.; Stolle, Claudia; Suni, J.; van den IJssel, J.; Verronen, Pekka T.; Visser, P.; Yamauchi, Masatoshi (Journal article; Peer reviewed, 2021)
      The lower-thermosphere–ionosphere (LTI) system consists of the upper atmosphere and the lower part of the ionosphere and as such comprises a complex system coupled to both the atmosphere below and space above. The atmospheric ...

    • Mesospheric nitric acid enhancements during energetic electron precipitation events simulated by WACCM‐D 

      Orsolini, Yvan; Smith-Johnsen, Christine; Marsh, Daniel R.; Stordal, Frode; Rodger, Craig J.; Verronen, Pekka T.; Clilverd, Mark A. (Peer reviewed; Journal article, 2018-07)
      While observed mesospheric polar nitric acid enhancements have been attributed to energetic particle precipitation through ion cluster chemistry in the past, this phenomenon is not reproduced in current whole‐atmosphere ...