SIO Research Candidate Seminar - Nicholas Beaird


 
10/23/2017 - 3:00pm

SCRIPPS INSTITUTION OF OCEANOGRAPHY O&A SECTION RESEARCH CANDIDATE SEMINAR

DATE:          October 23rd, Monday, 3pm  


LOCATION:     Nierenberg Hall 101
 
SPEAKER:      Nicholas Beaird, Ph.D.
            WHOI
            
TITLE:          Production, Export, and Oceanic Impacts of Greenland's Glacial Meltwater
 
ABSTRACT:    
 
The Greenland Ice Sheet has been shrinking at an accelerating rate. The resulting freshwater flows into the North Atlantic ocean, contributing to sea level rise and interacting with regional circulation. Greenland is situated near the convective regions of the Labrador Sea, creating the potential for meltwaters to influence the Atlantic Meridional Overturning Circulation by inhibiting convection. Numerical modeling studies have made progress in assessing the impact of excess Greenland meltwater on ocean circulation. However quantitative observations of meltwater spreading are sparse. Here we report new observational methods to quantitatively trace Greenland's meltwater using geochemical tracers. We show that glacial buoyancy input drives significant upwelling and vertical heat transport in a major east Greenland fjord. This overturning creates counterintuitive water property anomalies, and has the potential to strongly influence the East Greenland Coastal Current. We also co!
mpare and contrast geochemical observations of meltwater from a number of systems around Greenland and investigate the seasonal cycle of glacially modified water production from moored records. 
 
 
 
Faculty Host:  Myrl Hendershott (mhendershott@ucsd.edu)
For more information on this event, contact: 
lcosti@ucsd.edu
Event Calendar: 
Location: 
NH 101