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www.the-cryosphere-discuss.net/6/159/2012/
doi:10.5194/tcd-6-159-2012
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Brief Communication "Importance of slope-induced error correction in elevation change estimates from radar altimetry"
Bristol Glaciology Centre, School of Geographical Sciences, University of Bristol, Bristol, UK
Abstract. 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 several metres and increases the volume change by 32% for the region of interest.
Discussion Paper (PDF, 1795 KB) Interactive Discussion (Open, 1 Comment) Manuscript under review for TC
Citation: Hurkmans, R. T. W. L., Bamber, J. L., and Griggs, J. A.: Brief Communication "Importance of slope-induced error correction in elevation change estimates from radar altimetry", The Cryosphere Discuss., 6, 159-170, doi:10.5194/tcd-6-159-2012, 2012. Bibtex EndNote Reference Manager XML
