Browsing Institutt for geofag by Author "Otterå, Odd Helge"

Now showing items 1-3 of 3

  • Climate response to aerosol geoengineering: a multi-method comparison 
    Muri, Helene; Tjiputra, Jerry; Otterå, Odd Helge; Adakudlu, Muralidhar; Lauvset, Siv Kari; Grini, Alf; Schulz, Michael; Niemeier, Ulrike; Kristjansson, Jon Egill (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    Considering the ambitious climate targets of the Paris Agreement to limit global warming to 2°C, with aspirations of even 1.5°C, questions arise on how to achieve this. Climate geoengineering has been proposed as a potential ...
  • 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 / Tidsskriftartikkel / PublishedVersion; 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 ...
  • The 11 year solar cycle UV irradiance effect and its dependency on the Pacific Decadal Oscillation 
    Guttu, Sigmund; Orsolini, Yvan J.; Stordal, Frode; Otterå, Odd Helge; Omrani, Nour-Eddine (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    The stratospheric, tropospheric and surface impacts from the 11 year ultraviolet solar spectral irradiance (SSI) variability have been extensively studied using climate models and observations. Here, we demonstrate using ...