Articles | Volume 10, issue 5
Research article
10 Oct 2016
Research article |  | 10 Oct 2016

On retrieving sea ice freeboard from ICESat laser altimeter

Kirill Khvorostovsky and Pierre Rampal

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Cited articles

Bröhan, D. and Kaleschke, L.: A Nine-Year Climatology of Arctic Sea Ice Lead Orientation and Frequency from AMSR-E, Remote Sens. 6, 1451–1475,, 2014.
Cavalieri, D. J., Markus, T., and Comiso, J. C.: AMSR-E/Aqua Daily L3 25 km Brightness Temperature & Sea Ice Concentration Polar Grids, Version 3. Boulder, Colorado USA, NASA National Snow and Ice Data Center Distributed Active Archive Center,, 2014.
Farrell, S. L., Laxon, S. W., McAdoo, D. C., Yi, D., and Zwally, H. J.: Five years of Arctic sea ice freeboard measurements from the Ice, Cloud and land Elevation Satellite, J. Geophys. Res., 114, C04008,, 2009.
Ivanova, N., Rampal, P., and Bouillon, S.: Error assessment of satellite-derived lead fraction in the Arctic, The Cryosphere, 10, 585–595,, 2016.
Kern, S. and Spreen, G.: Uncertainties in Antarctic sea-ice thickness retrieval from ICESat, Ann. Glaciol., 56, 107–119,, 2015.
Short summary
We analyse two methods of freeboard retrieval from ICESat satellite data that were used to derive the two widely used Arctic sea ice thickness products. We show that although different factors result in significant local differences between freeboards, they roughly compensate each other with respect to overall freeboard estimation. Thus the difference found between the sea ice thickness datasets should be attributed to different parameters used in the freeboard-to-thickness conversion.