Faculty Candidate Seminar - Fiamma Straneo

01/21/2016 - 2:00pm
Hubbs Hall 4500
Event Description: 


DATE:  January 21, Thursday, 2:00 p.m.  

LOCATION:  Hubbs Hall 4500
SPEAKER:  Fiamma Straneo, Ph.D.
Woods Hole Oceanographic Institution

TITLE:  Icebergs through the porthole: North Atlantic warming and the retreat of Greenland's glaciers
Greenland ice loss quadrupled over the last two decades raising concerns for sea level rise and the impact of the additional freshwater on the ocean. Part of the ice loss is due to the speedup and retreat of glaciers that terminate in the ocean and evidence points at increased submarine melting, associated with a warming North Atlantic, as a likely trigger. The pervasive lack of ocean data from Greenland’s margins, however, combined with our limited knowledge of the processes involved, challenges our ability to understand ongoing changes and predict future ones. Here, using a combination of recently collected data, and idealized models, I will discuss the physical controls on submarine melting of Greenland’s glaciers including the propagation of anomalies from the large-scale ocean to the glaciers’ margins. Also, I will show that Greenland’s meltwater is not simply exported as surface fresh water but as a newly formed, typically subsurface, water mass. The implication of these results for coupling ice sheet/ocean models will be discussed. 


Faculty Host:   Sarah Gille (sgille@ucsd.edu)
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