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File: ENSO_winter_AR_occurrence_map_20220224.png

Map of the average frequency ond location of atmospheric rivers over the Pacific off the U.S. West Coast

Image caption

Average number of days each winter (December–February) with an atmospheric river occurrence over the northeastern Pacific Ocean. Maps calculated with ERA5 Reanalysis data covering the 1992-2020 period and with the Mundhenk et al. (2016) method for detecting atmospheric rivers.