This book is a collection of the most recent and significant research on algorithms for the analysis of polar sea-ice SAR data. All algorithms are implemented and tested. One chapter is from the Alaskan SAR Facility, the major NASA archive of polar SAR data and a source of many SAR analysis algorithms, including high-level results of such analyses. One chapter has been written jointly by the US and Canadian Ice Centers, which provide e.g., operational sea-ice products to the shipping and oil-drilling industries and to polar explorations. This book will be useful to all researchers in the polar sciences community. This book reviews recent advances in the use of SAR imagery for operational applications and for supporting science investigations of the polar oceans. The important parameters which can be extracted from spaceborne SAR imagery are discussed. Algorithms used in such analyses are described and data systems used in producing the sea ice products are provided.