External forcing of the early 20th century Arctic warming

by Lingling Suo, Odd Helge Otterå, Mats Bentsen, Yongqi Gao, Ola M. Johannessen
Published 2013-12-01

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

by Sigmund Guttu, Yvan Orsolini, Frode Stordal, Odd Helge Otterå, Nour-Eddine Omrani, Nazario Tartaglione, Pekka T. Verronen, Craig J. Rodger, Mark A. Clilverd
Published 2021-08-01