Browsing Institutt for geofag by Author "Orsolini, Yvan J."
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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 ...
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Guttu, Sigmund; Orsolini, Yvan J.; Stordal, Frode; Limpasuvan, Varavut; Marsh, Daniel R. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)Energetic particle precipitation is one of the main processes by which the sun influences atmospheric composition and structure. The polar middle atmosphere is chemically disturbed by the precipitation-induced production ...