Rapid ice discharge from southeast Greenland glaciers

Interferometric synthetic-aperture radar (InSAR) observations of southeast Greenland glaciers acquired by the Earth Remote Sensing Satellites (ERS-1/2) in 1996 were combined with ice sounding radar data collected in the late 1990s to estimate a total discharge of 46 ± 3 km 3 ice per year between 62°...

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Published in:Geophysical Research Letters
Main Authors: Rignot, E, Braaten, D, Gogineni, SP, Krabill, WB, McConnell, JR
Format: Article in Journal/Newspaper
Language:English
Published: eScholarship, University of California 2004
Subjects:
Greenland
Jensen Glacier
East Greenland
glacier
Online Access:http://www.escholarship.org/uc/item/7528r5pw
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spelling ftcdlib:qt7528r5pw 2023-05-15T16:03:47+02:00 Rapid ice discharge from southeast Greenland glaciers Rignot, E Braaten, D Gogineni, SP Krabill, WB McConnell, JR L10401 1-4 2004-05-28 application/pdf http://www.escholarship.org/uc/item/7528r5pw english eng eScholarship, University of California qt7528r5pw http://www.escholarship.org/uc/item/7528r5pw Attribution (CC BY): http://creativecommons.org/licenses/by/3.0/ CC-BY Rignot, E; Braaten, D; Gogineni, SP; Krabill, WB; & McConnell, JR. (2004). Rapid ice discharge from southeast Greenland glaciers. Geophysical Research Letters, 31(10), L10401 1-4. doi:10.1029/2004GL019474. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/7528r5pw article 2004 ftcdlib https://doi.org/10.1029/2004GL019474 2018-07-06T22:51:32Z Interferometric synthetic-aperture radar (InSAR) observations of southeast Greenland glaciers acquired by the Earth Remote Sensing Satellites (ERS-1/2) in 1996 were combined with ice sounding radar data collected in the late 1990s to estimate a total discharge of 46 ± 3 km 3 ice per year between 62°N and 66°N, which is significantly lower than a mass input of 29 ± 3 km 3 ice per year calculated from a recent compilation of snow accumulation data. Further north, Helheim Glacier discharges 23 ± 1 km 3/yr vs 30 ± 3 km 3/yr accumulation; Kangerdlugssuaq Glacier discharges 29 ± 2 km 3/yr vs 23 ± km 3/yr; and Daugaard-Jensen Glacier discharges 10.5 ± 0.6 km 3/yr vs 10.5 ± 1 km 3/yr. The mass balance of east Greenland glaciers is therefore dominated by the negative mass balance of southeast Greenland glaciers (- 17 ± 4 km 3/yr), equivalent to a sea level rise of 0.04 ± 0.01 mm/yr. Warmer and drier conditions cannot explain the imbalance which we attribute to longterm changes in ice dynamics. Copyright 2004 by the American Geophysical Union. Article in Journal/Newspaper East Greenland glacier Greenland University of California: eScholarship Greenland Jensen Glacier ENVELOPE(170.800,170.800,-85.083,-85.083) Geophysical Research Letters 31 10 n/a n/a
institution Open Polar
collection University of California: eScholarship
op_collection_id ftcdlib
language English
description Interferometric synthetic-aperture radar (InSAR) observations of southeast Greenland glaciers acquired by the Earth Remote Sensing Satellites (ERS-1/2) in 1996 were combined with ice sounding radar data collected in the late 1990s to estimate a total discharge of 46 ± 3 km 3 ice per year between 62°N and 66°N, which is significantly lower than a mass input of 29 ± 3 km 3 ice per year calculated from a recent compilation of snow accumulation data. Further north, Helheim Glacier discharges 23 ± 1 km 3/yr vs 30 ± 3 km 3/yr accumulation; Kangerdlugssuaq Glacier discharges 29 ± 2 km 3/yr vs 23 ± km 3/yr; and Daugaard-Jensen Glacier discharges 10.5 ± 0.6 km 3/yr vs 10.5 ± 1 km 3/yr. The mass balance of east Greenland glaciers is therefore dominated by the negative mass balance of southeast Greenland glaciers (- 17 ± 4 km 3/yr), equivalent to a sea level rise of 0.04 ± 0.01 mm/yr. Warmer and drier conditions cannot explain the imbalance which we attribute to longterm changes in ice dynamics. Copyright 2004 by the American Geophysical Union.
format Article in Journal/Newspaper
author Rignot, E
Braaten, D
Gogineni, SP
Krabill, WB
McConnell, JR
spellingShingle Rignot, E
Braaten, D
Gogineni, SP
Krabill, WB
McConnell, JR
Rapid ice discharge from southeast Greenland glaciers
author_facet Rignot, E
Braaten, D
Gogineni, SP
Krabill, WB
McConnell, JR
author_sort Rignot, E
title Rapid ice discharge from southeast Greenland glaciers
title_short Rapid ice discharge from southeast Greenland glaciers
title_full Rapid ice discharge from southeast Greenland glaciers
title_fullStr Rapid ice discharge from southeast Greenland glaciers
title_full_unstemmed Rapid ice discharge from southeast Greenland glaciers
title_sort rapid ice discharge from southeast greenland glaciers
publisher eScholarship, University of California
publishDate 2004
url http://www.escholarship.org/uc/item/7528r5pw
op_coverage L10401 1-4
long_lat ENVELOPE(170.800,170.800,-85.083,-85.083)
geographic Greenland
Jensen Glacier
geographic_facet Greenland
Jensen Glacier
genre East Greenland
glacier
Greenland
genre_facet East Greenland
glacier
Greenland
op_source Rignot, E; Braaten, D; Gogineni, SP; Krabill, WB; & McConnell, JR. (2004). Rapid ice discharge from southeast Greenland glaciers. Geophysical Research Letters, 31(10), L10401 1-4. doi:10.1029/2004GL019474. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/7528r5pw
op_relation qt7528r5pw
http://www.escholarship.org/uc/item/7528r5pw
op_rights Attribution (CC BY): http://creativecommons.org/licenses/by/3.0/
op_rightsnorm CC-BY
op_doi https://doi.org/10.1029/2004GL019474
container_title Geophysical Research Letters
container_volume 31
container_issue 10
container_start_page n/a
op_container_end_page n/a
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