BS-2-4 East Japan Disaster Observed by ALOS-PALSAR Polarimetric Data
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概要
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This paper presents scattering power decomposition image of fully polarimetric synthetic aperture radar data for East Japan Disaster occurred on March 11, 2011. Utilization of fully polarimetric data can derive full color images with red-green-blue color coding, red for the double-bounce power, green for the volume scattering power, and blue for the surface scattering power, for which each color brightness corresponds to the magnitude. Since disaster causes the change of each scattering power, it becomes easy for everyone to recognize the change by color in the decomposed image when time series data sets are available. By applying the four-component scattering power decomposition to fully polarimetric data acquired with Advanced Land Observing Satellite (ALOS) Phased Array type L-band Synthetic Aperture Radar (PALSAR), we present several images on "tsunami effect" caused by the great earthquake. It is seen in the decomposed images that most disaster areas show increasing surface scattering power compared to those in normal situations.
- 2012-03-06
著者
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Yamaguchi Yoshio
Department Of Information Engineering Niigata University
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Yamaguchi Yoshio
Department Of Cardiology Fukuoka University School Of Medicine
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