DocumentCode :
738553
Title :
Monitoring of the March 11, 2011, Off-Tohoku 9.0 Earthquake With Super-Tsunami Disaster by Implementing Fully Polarimetric High-Resolution POLSAR Techniques
Author :
Singh, Gagan ; Yamaguchi, Yoshio ; Boerner, Wolfgang-Martin ; Sang-Eun Park
Author_Institution :
Grad. Sch. of Sci. & Technol., Niigata Univ., Niigata, Japan
Volume :
101
Issue :
3
fYear :
2013
fDate :
3/1/2013 12:00:00 AM
Firstpage :
831
Lastpage :
846
Abstract :
This paper reflects the polarimetric synthetic aperture radar (POLSAR) data utilization for near-real-time earthquake and/or tsunami damage assessment in urban areas. In order to show the potential of the fully polarimetric high-resolution polarimetric SAR (POLSAR) image data sets, a four-component scattering power decomposition scheme has been developed and applied to monitor near-real-time earthquake and tsunami disaster damages. The test site for natural disaster damages has been selected: parts of the coastal area affected by the March 11, 2011, 9.0 magnitude earthquake that struck off Japan´s northeastern coast and triggered a super-tsunami. The color-coded images of the scattering power decomposition scheme are a simple and straightforward tool to interpret the changes over the earthquake/tsunami affected urban areas and man-made infrastructures. This method also holds other types of natural (typhoon or tornado) and man-made disaster assessment applications. It is found that the double-bounce scattering power is the most promising of the input parameters to detect automated disaster affected urban areas at pixel level. It is also observed that the very-high-resolution POLSAR images are required for superior urban area monitoring over the oriented urban blocks with respect to the illumination of radar.
Keywords :
earthquakes; radar polarimetry; remote sensing by radar; synthetic aperture radar; tsunami; AD 2011 03 11; Japan northeastern coast; POLSAR data; coastal area; double-bounce scattering power; four-component scattering power decomposition scheme; man-made disaster assessment applications; man-made infrastructures; near-real-time earthquake; off-Tohoku earthquake monitoring; pixel level; polarimetric SAR image data sets; polarimetric high-resolution POLSAR techniques; radar illumination; scattering power decomposition scheme; super-tsunami; super-tsunami disaster; synthetic aperture radar; tsunami damage assessment; urban areas; Disasters; Earthquakes; Polarimetry; Remote sensing; Rough surfaces; Scattering; Sea surface; Synthetic aperture radar; Tsunami; Urban areas; High-resolution remote sensing; Japan; off-Tohoku; polarimetric synthetic aperture radar (POLSAR); radar polarimetry; scattering power decomposition; tsunami & earthquake disaster assessment;
fLanguage :
English
Journal_Title :
Proceedings of the IEEE
Publisher :
ieee
ISSN :
0018-9219
Type :
jour
DOI :
10.1109/JPROC.2012.2230311
Filename :
6415234
Link To Document :
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