Deriving a high-resolution record of Greenland glacier discharge

• Main Author: King, Michalea
• Other Authors: Howat, Ian
• Format: Report
• Language: English
• Published: 2018
• Subjects: glaciology; climate; Arctic; glaciers; Greenland; Hayes; glacier; Ice Sheet
• Online Access: http://hdl.handle.net/1811/84624

Mathematical and Physical Sciences: 3rd Place (The Ohio State University Edward F. Hayes Graduate Research Forum) Ice mass loss from the Greenland Ice Sheet is a major contributor to present-day sea level rise. Some of this mass is lost through the calving of ice from marine-terminating outlet glaciers. This research documents changes in speed and velocity for a large collection of glaciers by assimilating modeled and remotely sensed data. These data are used to derive continuous time series of solid ice discharge for every major glacier in Greenland over the 2000-2016 period. Combined, these records provide a single cumulative time series of the total dynamic ice loss of the GrIS, and reveal a marked seasonality superimposed on long-term trends. These data will allow us to identify regions of the ice sheet most vulnerable to change, and better understand how seasonal variability in ice flux contributes to overall glacier mass-balance, and the health of the ice sheet going forward. A three-year embargo was granted for this item.