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Sea ice co ncentration and type analysis from dual pol Radarsat-2 and Modis images in the Baltic Sea

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3 Author(s)
Rivo Uiboupin ; Marine Systems Institute at Tallinn University of Technology, Akadeemia Rd 2IB, Tallinn 12618, Estonia ; Liis Sipelgas ; Urmas Raudsepp

A sea ice classification technique is introduced. The classification was performed on Radarsat-2 dual polarization image (07.02.2009) and MODIS images (09.02.2009) that covered coastal area in the western part of Baltic Sea. The classification on SAR image was based on Shannon entropy differences that occur on various ice types. Analysis showed that four ice types (water, fast ice, ridged ice and deformed ice) were identifiable. Also two independent analysis were performed on MODIS image. The spectral classification enabled to separate ridged ice regions and fast ice areas. Using histogram analysis ice concentration map was created. The analysis of Modis image enabled to identify regions where water was covering ice surface. The same phenomena was also detected from SAR data.

Published in:

2009 IEEE International Geoscience and Remote Sensing Symposium  (Volume:2 )

Date of Conference:

12-17 July 2009