The Cryosphere Discuss., 8, 2721-2757, 2014
www.the-cryosphere-discuss.net/8/2721/2014/
doi:10.5194/tcd-8-2721-2014
© Author(s) 2014. This work is distributed
under the Creative Commons Attribution 3.0 License.
Review Status
This discussion paper is under review for the journal The Cryosphere (TC).
Comparing C- and L-band SAR images for sea ice motion estimation
J. Lehtiranta, S. Siiriä, and J. Karvonen
Finnish Meteorological Institute, Marine Research Programme, Helsinki, PB 503, 00101 Finland

Abstract. Pairs of consecutive C-band SAR images are routinely used for sea ice motion estimation. In addition to the surface roughness L-band SAR imagery provides information of the seasonal sea ice inner structure, which is especially useful in the Baltic Sea lacking multiyear ice and icebergs. In this work, L-band SAR images are investigated for sea ice motion estimation using the well-established maximal cross-correlation approach. This work provides the first comparison of L-band and C-band SAR images for the purpose of motion estimation. The cross-correlation calculations are hardware accelerated using new OpenCL-based source code, which is made available through the author's web site. It is found that L-band images are preferable for motion estimation over C-band images. It is also shown that motion estimation is possible between a C-band and an L-band image using the maximal cross-correlation technique.

Citation: Lehtiranta, J., Siiriä, S., and Karvonen, J.: Comparing C- and L-band SAR images for sea ice motion estimation, The Cryosphere Discuss., 8, 2721-2757, doi:10.5194/tcd-8-2721-2014, 2014.
 
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