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http://dx.doi.org/10.7780/kjrs.2012.28.1.021

Detection of Icebergs Using Full-Polarimetric RADARSAT-2 SAR Data in West Antarctica  

Kim, Jin-Woo (School of Earth and Environmental Sciences, Seoul National University)
Kim, Duk-jin (School of Earth and Environmental Sciences, Seoul National University)
Kim, Seung-Hee (School of Earth and Environmental Sciences, Seoul National University)
Hwang, Byong-Jun (Scottish Marine Institute)
Yackel, John (Department of Geography, University of Calgary)
Publication Information
Korean Journal of Remote Sensing / v.28, no.1, 2012 , pp. 21-28 More about this Journal
Abstract
In this study, detection of icebergs that have various scattering characteristics around Wilkinson glacier in West Antarctica is investigated using C-band fully-polarimetric RADARSAT-2 SAR data. Various polarimetric analyses including Freeman-Durden decomposition, H/A/$\bar{\alpha}$ decomposition, entropy (H) and anisotropy (A) method, and Wishart unsupervised classification, were applied for the RADARSAT-2 data used in this study. The polarimetric decomposition methods were successfully classified most of the iceberg, yet some iceberg with similar intensity of volume and surface scattering as sea ice were indistinguishable. Unsupervised classification with a combination of the polarimetric parameter, [1-H][1-A], gave a possibility to distinguish those unclassified iceberg.
Keywords
Iceberg; West Antarctica; Polarimetry; RADARSAT-2; Classification;
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