Articles | Volume 11, issue 5
https://doi.org/10.5194/tc-11-2059-2017
https://doi.org/10.5194/tc-11-2059-2017
Research article
 | 
04 Sep 2017
Research article |  | 04 Sep 2017

Comparison of CryoSat-2 and ENVISAT radar freeboard over Arctic sea ice: toward an improved Envisat freeboard retrieval

Kevin Guerreiro, Sara Fleury, Elena Zakharova, Alexei Kouraev, Frédérique Rémy, and Philippe Maisongrande

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Revised manuscript not accepted
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Cited articles

Alexandrov, V., Sandven, S., Wahlin, J., and Johannessen, O. M.: The relation between sea ice thickness and freeboard in the Arctic, The Cryosphere, 4, 373–380, https://doi.org/10.5194/tc-4-373-2010, 2010.
Andersen, O. B., Piccioni, G. L. S., and Knudsen, P.: The DTU15 Mean Sea Surface and Mean Dynamic Topography- focusing on Arctic issues and development, in: oral presentation, in the 2015 OSTST Meeting, 19–23 October 2015, Reston, USA, 2015.
Anderson, M., Bliss, A. C., and Tschudi, M.: MEaSUREs Arctic Sea Ice Characterization Daily 25 km EASE-Grid 2.0, Version 1. Boulder, Colorado USA, NASA National Snow and Ice Data Center Distributed Active Archive Center, https://doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0532.001, 2014.
Beaven, S. G.: Sea Ice Radar Backscatter Modeling, Measurements, and the Fusion of Active and Passive Microwave Data., Tech. rep., DTIC Document, 1995.
Carrere, L., Lyard, F., Cancet, M., and Guillot, A.: FES 2014, a new tidal model on the global ocean with enhanced accuracy in shallow seas and in the Arctic region, in: EGU General Assembly Conference Abstracts, 12–17 April 2015, Vienna, Austria, vol. 17, p. 5481, 2015.
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Short summary
We analyse CryoSat-2 and Envisat freeboard height discrepancy over Arctic sea ice and we study the potential role of ice roughness. Based on our results, we build a CryoSat-2-like version of Envisat freeboard height. The improved Envisat freeboard is converted to sea ice draught and compared to in situ mooring observations to demonstrate the potential of our methodology to produce accurate ice thickness estimates over the 2002–2012 period.