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Brief Communication Importance of Slope-induced Error Correction in Volume Change Estimates from Radar Altimetry : Volume 6, Issue 2 (03/04/2012)

By Hurkmans, R. T. W. L.

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Book Id: WPLBN0004022597
Format Type: PDF Article :
File Size: Pages 5
Reproduction Date: 2015

Title: Brief Communication Importance of Slope-induced Error Correction in Volume Change Estimates from Radar Altimetry : Volume 6, Issue 2 (03/04/2012)  
Author: Hurkmans, R. T. W. L.
Volume: Vol. 6, Issue 2
Language: English
Subject: Science, Cryosphere
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Bamber, J. L., Griggs, J. A., & W. L. Hurkman, R. T. (2012). Brief Communication Importance of Slope-induced Error Correction in Volume Change Estimates from Radar Altimetry : Volume 6, Issue 2 (03/04/2012). Retrieved from

Description: Bristol Glaciology Centre, School of Geographical Sciences, University of Bristol, Bristol, UK. In deriving elevation change rates (dH/dt) from radar altimetry, the slope-induced error is usually assumed to cancel out in repeat measurements. These measurements, however, represent a location that can be significantly further upslope than assumed, causing an underestimate of the basin-integrated volume change. In a case-study for the fast-flowing part of Jakobshavn Isbræ, we show that a relatively straightforward correction for slope-induced error increases elevation change rates by up to several metres per year and significantly reduces the volume change error with respect to laser altimetry for the area of interest.

Brief communication Importance of slope-induced error correction in volume change estimates from radar altimetry

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