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Rapid Warming of the Antarctic Ice Sheet over the Past 36 Years Driven by the Tropics

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Wednesday, 06 December 2017, 12:15

Wednesday December 6, 2017. 12:15 PM.  Rapid Warming of the Antarctic Ice Sheet over the Past 36 Years Driven by the Tropics. Kyle Clem, Rutgers University. Sponsored by Environmental Sciences Graduate Student Association. Complimentary lunch will be served. 

Abstract: 
Since the late 1970s, portions of Antarctica warmed at a rate several times faster than the global average, which has influenced Antarctic ecosystems and the stability of the ice sheet. Despite this warming, cooling has also been observed in various seasons along with an overall increase in sea ice, which is in sharp contrast to climate model projections with modern levels of greenhouse gas concentrations. In this talk, I will provide an overview of these recent (past 36 years) changes in Antarctic surface climate, their influence on the stability of the ice sheet (and hence global sea levels), and the regional atmospheric circulation changes likely connected to these changes. I will also discuss the close atmospheric connection between the tropics and Antarctica, and how recent variability in tropical Pacific sea surface temperatures has likely driven the strongest warming trends observed across the Antarctic over the past 36 years.

 

Location  Room 223, ENRS Building, 14 College Farm Road, Cook Campus
Contact  mdrews(at)rutgers.edu