21st- Century Evolution of Greenland Outlet Glacier Velocities
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Material Information

Title:
21st- Century Evolution of Greenland Outlet Glacier Velocities
Series Title:
Science Magazine Volume 336
Creator:
Moon, T.
Joughlin, I.
Smith, B.
Howat, I.
Publisher:
American Association for the Advancement of Science
Publication Date:
Language:
English

Subjects

Subjects / Keywords:
Climate Change ( lcsh )
Greenland ( lcsh )
Glaciers ( lcsh )
Sea Level Rise ( lcsh )

Notes

Abstract:
Earlier observations on several of Greenland’s outlet glaciers, starting near the turn of the 21st century, indicated rapid (annual-scale) and large (>100%) increases in glacier velocity. Combining data from several satellites, we produce a decade-long (2000 to 2010) record documenting the ongoing velocity evolution of nearly all (200+) of Greenland’s major outlet glaciers, revealing complex spatial and temporal patterns. Changes on fast-flow marine-terminating glaciers contrast with steady velocities on ice-shelf–terminating glaciers and slow speeds on land-terminating glaciers. Regionally, glaciers in the northwest accelerated steadily, with more variability in the southeast and relatively steady flow elsewhere. Intraregional variability shows a complex response to regional and local forcing. Observed acceleration indicates that sea level rise from Greenland may fall well below proposed upper bounds. ( English )

Record Information

Source Institution:
Florida International University
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Sea Level Rise