Using gridded precipitation products across Europe and the continental United States and the ERA-Interim reanalysis, we investigate the fraction of precipitation from 1979 to 2012 that is related to ARs in these regions. The results are region- and month-dependent, with the largest contribution generally occurring during the winter season and being on the order of 30–50%.

Lavers, D.A., and G. Villarini, The contribution of atmospheric rivers to precipitation in Europe and the United States, Journal of Hydrology, 522, 382-390, 2015.