Environmental Science and Engineering Seminar

Wednesday October 4, 2017 4:00 PM

Changes in the duration of extreme precipitation events with climate warming and links to atmospheric dynamics

Speaker: Paul O'Gorman, Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology
Location: South Mudd 365

We know that the intensity of extreme precipitation events increases with climate warming from theory, models and observations. But the duration of precipitation events is also a key factor for impacts, as illustrated recently by Hurricane Harvey. In this talk, I will discuss changes in the duration of extreme precipitation events in the extratropics and whether the duration is affected by changes in the speed of the jetstream. I will also discuss the related question of what sets the spatial extent of ascent in extratropical cyclones and what can be learned from the theory of baroclinic instability in a moist atmosphere.

Series Environmental Science and Engineering Seminar

Contact: Nora Oshima at 626-395-4956 nora@gps.caltech.edu