Atmospheric Rivers: Recent Developments in Science, Impacts, and Policies

October 21, 2020 3:00pm to 4:00pm
Zoom Seminar


Speaker: Marty Ralph

Institution: Scripps Institution of Oceanography


Recent developments in the study of atmospheric rivers will be reviewed, including creation of the formal definition, the scale for AR intensity and impacts, an operational airborne AR Reconnaissance program and AR-focused forecast tools.  The role of ARs in extreme precipitation will be described, including examples from the US East Coast and trends in the occurrence of extreme 3-day-total precipitation events.  Finally, examples will be summarized of how the AR topic has related to recent public policy developments at state and federal levels, focusing on the potential for better AR forecasts to support water management.