The Cryosphere
The Cryosphere
TC
Articles | Volume 13, issue 2
Articles | Volume 13, issue 2
https://doi.org/10.5194/tc-13-709-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-13-709-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 13, issue 2
Research article
 | 
01 Mar 2019
Research article |  | 01 Mar 2019

Sentinel-3 Delay-Doppler altimetry over Antarctica

Malcolm McMillan, Alan Muir, Andrew Shepherd, Roger Escolà, Mònica Roca, Jérémie Aublanc, Pierre Thibaut, Marco Restano, Américo Ambrozio, and Jérôme Benveniste

Data sets

Copernicus Open Access Data Hub System 0.14.7-2 Copernicus Open Access Hub https://scihub.copernicus.eu/dhus/#/home

IceBridge Riegl Laser Altimeter L2 Geolocated Surface Elevation Triplets D. D. Blankenship, S. D. Kempf, D. A. Young, J. L. Roberts, T. van Ommen, R. Forsberg, M. J. Siegert, S. J. Palmer, and J. A. Dowdeswell https://doi.org/10.5067/JV9DENETK13E

IceBridge ATM L2 Icessn Elevation, Slope, and Roughness M. Studinger https://doi.org/10.5067/CPRXXK3F39RV

A new digital elevation model of Antarctica derived from CryoSat-2 altimetry (http://www.cpom.ucl.ac.uk/csopr/icesheets2/dems.html) T. Slater, A. Shepherd, M. McMillan, A. Muir, L. Gilbert, A. E. Hogg, H. Konrad, and T. Parrinello https://doi.org/10.5194/tc-12-1551-2018

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Short summary
Melting of the Greenland and Antarctic ice sheets is one of the main causes of current sea level rise. Understanding ice sheet change requires large-scale systematic satellite monitoring programmes. This study provides the first assessment of a new long-term source of measurements, from Sentinel-3 satellite altimetry. We estimate the accuracy of Sentinel-3 across Antarctica, show that the satellite can detect regions that are rapidly losing ice, and identify signs of subglacial lake activity.
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