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Environment Counts | Retreat of major glacier in northeast Greenland has accelerated since 2003 :

Published by on Tuesday, January 24th, 2017

Published
by geoff
on 2015-11-18

Zachariæ Isstrøm (ZI) is a major glacier in northeast Greenland which holds enough water to raise sea level by half a meter. Research has shown that it entered a phase of accelerated retreat in fall 2012. Its ice velocity has tripled. Repeat measurements of ice thickness (±10 m precision) and surface elevation (±10 cm precision) using radar and LiDAR data from 1995 to 2014 provide precise information about ice thickness change during the retreat of ZI.

Mass loss of two glaciers in northeast Greenland
Mass loss of two glaciers in northeast Greenland

The observations show that ZI was in a state of mass balance until 2003 and is now losing mass at about 5 Gt/yr. Fast retreat of Zachariæ Isstrøm, northeast Greenland, J. Mouginot et al. Published Online November 12 2015 Science DOI: 10.1126/science.aac7111

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