Monitoring of the March 11, 2011, Off-Tohoku 9.0 Earthquake With Super-Tsunami Disaster by Implementing Fully Polarimetric High-Resolution POLSAR Techniques

作者：Singh Gulab^*; Yamaguchi Yoshio; Boerner Wolfgang Martin; Park Sang Eun

来源：Proceedings of the IEEE, 2013, 101(3): 831-846.

DOI：10.1109/JPROC.2012.2230311

• High-resolution remote sensing
• Japan
• off-Tohoku
• polarimetric synthetic aperture radar (POLSAR)
• radar polarimetry
• scattering power decomposition
• tsunami %26 earthquake disaster assessment

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%26apos;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.

• 出版日期2013-3