Department of Geography Seminar - Duane Waliser: "Atmospheric Rivers: Water Extremes that Shape Our Global Weather and Climate"
Thursday, March 15, 2018 - 4:00pm to Thursday, March 15, 2018 - 5:00pm

When: Thursday, March 15, 4-5 pm

Where: Cramer Hall 418

Duane E. Waliser, NASA Jet Propulsion Laboratory/Joint Institute for Regional Earth System
Science and Engineering, University of California

Atmospheric rivers (ARs) — long, narrow filaments of large vertically-integrated horizontal
water vapor transport — are associated with weather, water and climate extremes, including
precipitation and wind extremes, flooding, and droughts when they are absent. Most work in
recent decades has been focused on regional characterization and impacts of ARs, namely
western N. America and Europe. Here we highlight the application of a global detection
algorithm for atmospheric rivers to illustrate the widespread global impacts of atmospheric
rivers in shaping our weather and climate, including highlights from our studies on global
evaluations of model simulation of ARs, weather and subseasonal prediction skill of ARs,
climate projections of ARs, and the manner they shape terrestrial hydrology extremes across
the globe.