Articles | Volume 10, issue 6
https://doi.org/10.5194/tc-10-2953-2016
https://doi.org/10.5194/tc-10-2953-2016
Research article
 | 
01 Dec 2016
Research article |  | 01 Dec 2016

Improved retrieval of land ice topography from CryoSat-2 data and its impact for volume-change estimation of the Greenland Ice Sheet

Johan Nilsson, Alex Gardner, Louise Sandberg Sørensen, and Rene Forsberg

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Cited articles

Abulaitijiang, A., Andersen, O. B., and Stenseng, L.: Coastal sea level from inland CryoSat-2 interferometric SAR altimetry, Geophys. Res. Lett., 42, 1841–1847, https://doi.org/10.1002/2015GL063131, 2015.
Arthern, R., Wingham, D., and Ridout, A.: Controls on ERS altimeter measurements over ice sheets: Footprint-scale topography, backscatter fluctuations, and the dependence of microwave penetration depth on satellite orientation, J. Geophys. Res., 106, 33471–33484, https://doi.org/10.1029/2001JD000498, 2001.
Bales, R. C., Guo, Q., Shen, D., McConnell, J. R., Du, G., Burkhart, J. F., Spikes, V. B., Hanna, E., and Cappelen, J.: Annual accumulation for Greenland updated using ice core data developed during 2000-2006 and analysis of daily coastal meteorological data, J. Geophys. Res., 114, D06116, https://doi.org/10.1029/2008JD011208, 2009.
Bamber, J. L.: Ice sheet altimeter processing scheme, Int. J. Remote Sens., 15, 925–938, https://doi.org/10.1080/01431169408954125, 1994.
Borsa, A. A., Moholdt, G., Fricker, H. A., and Brunt, K. M.: A range correction for ICESat and its potential impact on ice-sheet mass balance studies, The Cryosphere, 8, 345–357, https://doi.org/10.5194/tc-8-345-2014, 2014.
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Short summary
In this study we present a new processing methodology for retrieving surface elevations and elevation changes over glaciated terrain from CryoSat-2 data. The new methodology has been shown to be less sensitive to changes in near-surface dielectric properties and provides improved elevation and elevation change retrievals. This methodology has been applied to the Greenland Ice Sheet to provide an updated volume change estimate for the period of 2011 to 2015.