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The Cryosphere An interactive open-access journal of the European Geosciences Union
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Short summary
Our study aimed to investigate whether CS-2 and Envisat radar freeboard can be merged without intermission biases in order to obtain a 20-year data set. The comparison revealed a reasonable regional agreement between radar freeboards derived from both sensors. Differences are mostly below 0.1 m for modal freeboard and even less for mean freeboard over winter months (May–October). The highest differences occur in regions with multi-year sea ice and along the coasts.
Articles | Volume 10, issue 4
The Cryosphere, 10, 1415–1425, 2016
https://doi.org/10.5194/tc-10-1415-2016
The Cryosphere, 10, 1415–1425, 2016
https://doi.org/10.5194/tc-10-1415-2016

Research article 08 Jul 2016

Research article | 08 Jul 2016

About the consistency between Envisat and CryoSat-2 radar freeboard retrieval over Antarctic sea ice

Sandra Schwegmann et al.

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Cited articles

Armitage, T. W. K. and Davidson, M. W. J.: Using the Interferometric Capabilities of the ESA CryoSat-2 Mission to Improve the Accuracy of Sea Ice Freeboard Retrievals, IEEE T. Geosci. Remote, 52, 529–536, 2014.
Behrendt, A., Dierking, W., Fahrbach, E., and Witte, H.: Sea ice draft in the Weddell Sea, measured by upward looking sonars, Earth Syst. Sci. Data, 5, 209–226, https://doi.org/10.5194/essd-5-209-2013, 2013.
Brodzik, M. J., Billingsley, B., Haran, T., Raup, B., and Savoie, M. H.: EASE-Grid 2.0: Incremental but Significant Improvements for Earth-Gridded Data Sets, ISPRS Int. J. Geo-Inform., 1, 32–45, 2012.
Connor, L. N., Laxon, S. W., Ridout, A. L., Krabill, W. B., and McAdoo, D. C.: Comparison of Envisat radar and airborne laser altimeter measurements over Arctic sea ice, Remote Sens. Environ., 113, 563–570, 2009.
Dierking, W.: Laser Profiling of the Ice Surface-Topography during the Winter Weddell Gyre Study 1992, J. Geophys. Res.-Oceans, 100, 4807–4820, 1995.
Publications Copernicus
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Short summary
Our study aimed to investigate whether CS-2 and Envisat radar freeboard can be merged without intermission biases in order to obtain a 20-year data set. The comparison revealed a reasonable regional agreement between radar freeboards derived from both sensors. Differences are mostly below 0.1 m for modal freeboard and even less for mean freeboard over winter months (May–October). The highest differences occur in regions with multi-year sea ice and along the coasts.
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