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Physics and Astronomy

Physics & Astronomy Colloquium

3:30 PM, Friday, October 24, 2014
Room 155, Chem-Phys Building

Dr. Jennifer Francis
Rutgers University

Rapid Arctic warming and extreme weather events in mid-latitudes: Are they connected?

In this presentation, I will discuss the hypothesis proposed by Francis and Vavrus (2012) that links rapid Arctic warming (so-called Arctic amplification) to changes in the large-scale atmospheric circulation in the northern hemisphere that favors more persistent weather patterns and a higher likelihood of extreme weather events such as droughts, cold spells, flooding, heavy snows, and heat waves. This hypothesis has been a topic of considerable controversy in recent months, particularly regarding its relationship to the unusual weather conditions that persisted in the winter of 2013/2014. I will discuss various aspects of this linkage, what we know and don't know, and present new related research.

Refreshments will be served in CP 179 at 3:15 PM