Articles | Volume 11, issue 2
Research article
29 May 2020
Research article |  | 29 May 2020

Eurasian autumn snow link to winter North Atlantic Oscillation is strongest for Arctic warming periods

Martin Wegmann, Marco Rohrer, María Santolaria-Otín, and Gerrit Lohmann

Data sets

Atmospheric Reanalysis of the 20th Century European Centre for Medium-Range Weather Forecast

Twentieth Century Reanalysis Version 2c National Oceanic and Atmospheric Administration

Tibaldi Molteni 2-dimensional blocks M. Rohrer

Atlantic Multidecadal Oscillation Index National Oceanic and Atmospheric Administration

Niño 3.4 SST Index National Oceanic and Atmospheric Administration

North Atlantic Oscillation Index Climate Research Unit

Gridded Monthly Sea Ice Extent and Concentration National Snow & Ice Data Center

Short summary
Predicting the climate of the upcoming season is of big societal benefit, but finding out which component of the climate system can act as a predictor is difficult. In this study, we focus on Eurasian snow cover as such a component and show that knowing the snow cover in November is very helpful in predicting the state of winter over Europe. However, this mechanism was questioned in the past. Using snow data that go back 150 years into the past, we are now very confident in this relationship.
Final-revised paper