Journal
CRYOSPHERE
Volume 6, Issue 2, Pages 447-451Publisher
COPERNICUS GESELLSCHAFT MBH
DOI: 10.5194/tc-6-447-2012
Keywords
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Funding
- European Union [226375]
- European Space Agency's Changing Earth Science network
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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 Isbr', 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.
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