Articles | Volume 12, issue 8
The Cryosphere, 12, 2789–2801, 2018
https://doi.org/10.5194/tc-12-2789-2018
The Cryosphere, 12, 2789–2801, 2018
https://doi.org/10.5194/tc-12-2789-2018

Research article 30 Aug 2018

Research article | 30 Aug 2018

Three years of sea ice freeboard, snow depth, and ice thickness of the Weddell Sea from Operation IceBridge and CryoSat-2

Ron Kwok and Sahra Kacimi

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Cited articles

Dominguez, R.: IceBridge DMS L1B Geolocated and Orthorectified Images, Version 1 (2014–2015), NASA National Snow and Ice Data Center Distributed Active Archive Center, Boulder, Colorado, USA, https://doi.org/10.5067/OZ6VNOPMPRJ0, 2010. 
Giles, K. A., Laxon, S. W., and Worby, A. P.: Antarctic sea ice elevation from satellite radar altimetry, Geophys. Res. Lett., 35, L03503, https://doi.org/10.1029/2007gl031572, 2008. 
Koenig, L. S., Martin, S., Studinger, M., and Sonntag, J.: Polar Airborne Observations Fill Gap in Satellite Data, Eos Trans. AGU, 91, https://doi.org/10.1029/2010eo380002, 2010. 
Krabill, W.: IceBridge Narrow Swath ATM L1B Elevation and Return Strength, Version 2 (updated 2016), NASA National Snow and Ice Data Center Distributed Active Archive Center, Boulder, Colorado, USA, https://doi.org/10.5067/CXEQS8KVIXEI, 2014. 
Kurtz, N. T. and Markus, T.: Satellite observations of Antarctic sea ice thickness and volume, J. Geophys. Res., 117, C08025, https://doi.org/10.1029/2012JC008141, 2012. 
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Short summary
The variability of snow depth and ice thickness in three years of repeat surveys of an IceBridge (OIB) transect across the Weddell Sea is examined. Retrieved thicknesses suggest a highly variable but broadly thicker ice cover compared to that inferred from drilling and ship-based measurements. The use of lidar and radar altimeters to estimate snow depth for thickness calculations is analyzed, and the need for better characterization of biases due to radar penetration effects is highlighted.