Multi-decadal record of ice dynamics on Daugaard Jensen Gletscher, East Greenland, from satellite imagery and terrestrial measurements

This is the publisher's version, also available electronically from "http://www.ingentaconnect.com". The history of ice velocity and calving front position of Daugaard Jensen Gletscher, a large outlet glacier in East Greenland, is reconstructed from field measurements, aerial photogra...

Full description

Bibliographic Details
Published in:Annals of Glaciology
Main Authors: Stearns, Leigh A., Hamilton, Gordon S., Reeh, Niels
Format: Article in Journal/Newspaper
Language:unknown
Published: International Glaciological Society 2015
Subjects:
Online Access:http://hdl.handle.net/1808/17211
https://doi.org/10.3189/172756405781812565
Description
Summary:This is the publisher's version, also available electronically from "http://www.ingentaconnect.com". The history of ice velocity and calving front position of Daugaard Jensen Gletscher, a large outlet glacier in East Greenland, is reconstructed from field measurements, aerial photography and satellite imagery for the period 1950–2001. The calving terminus of the glacier has remained in approximately the same position over the past ∼50 years. There is no evidence of a change in ice motion between 1968 and 2001, based on a comparison of velocities derived from terrestrial surveying and feature tracking using sequential satellite images. Estimates of flux near the entrance to the fjord vs snow accumulation in the interior catchment show that Daugaard Jensen Gletscher has a small negative mass balance. This result is consistent with other mass-balance estimates for the inland region of the glacier.