Title :
Multi-frequency polarimetric analysis of sea ice
Author :
Eltoft, T. ; Grahn, Jan ; Doulgeris, A. ; Brekke, Camilla ; Ferro-Famil, L. ; Holt, B.
Author_Institution :
Dept. of Phys. & Technol., Univ. of Tromso, Tromso, Norway
Abstract :
This paper explores the frequency dependency of polarimetric properties of SAR backscatter from Arctic sea ice. The study focus on L and C-band full polarimetric SAR (PolSAR) data from the Beaufort Sea, collected by the NASA/JPL AIRSAR system in December 2004. An area showing various types of first year ice, plus regions of multi-year ice, is selected for a polarimetric analysis, which included a non-negative eigenvalue Freeman-Durden decomposition of the two PolSAR images. The analysis shows clear evidence of differences in the scattering mechanisms associated with L and C band frequencies.
Keywords :
eigenvalues and eigenfunctions; oceanographic regions; radar imaging; radar polarimetry; remote sensing by radar; sea ice; synthetic aperture radar; AD 2004 12; Arctic sea ice; Beaufort Sea; C band frequency; C-band full polarimetric SAR data; L band frequency; L-band full polarimetric SAR data; NASA/JPL AIRSAR system; PolSAR images; SAR backscatter; first-year ice; multifrequency polarimetric analysis; multiyear ice; nonnegative eigenvalue Freeman-Durden decomposition; polarimetric properties; scattering mechanisms; Rough surfaces; Scattering; Sea ice; Sea surface; Surface topography; Synthetic aperture radar;
Conference_Titel :
Synthetic Aperture Radar (APSAR), 2013 Asia-Pacific Conference on
Conference_Location :
Tsukuba
