Monitoring of the March 11, 2011, Off-Tohoku 9.0 Earthquake With Super-Tsunami Disaster by Implementing Fully Polarimetric High-Resolution POLSAR Techniques
Monitoring of the March 11, 2011, Off-Tohoku 9.0 Earthquake With Super-Tsunami Disaster by Implementing Fully Polarimetric High-Resolution POLSAR Techniques
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DOI：
10.1109/jproc.2012.2230311
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发表时间：
2013-01
影响因子：
20.6
通讯作者：
Gulab Singh;Y. Yamaguchi;W. Boerner;Sang-Eun Park
中科院分区：
文献类型：
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作者：
Gulab Singh;Y. Yamaguchi;W. Boerner;Sang-Eun Park
本文反映了极化合成孔径雷达（POLSAR）数据在城市地区近实时地震和/或海啸损失评估中的应用。为了展示全偏振高分辨率偏振SAR（POLSAR）图像数据集的潜力，开发了四分量散射功率分解方案并将其应用于监测近实时地震和海啸灾害损失。自然灾害损失试验地点已选定：受2011年3月11日日本东北海岸9.0级地震影响并引发超级海啸的部分沿海地区。散射功率分解方案的颜色编码图像是解释受地震/海啸影响的城市地区和人造基础设施变化的简单而直接的工具。该方法还适用于其他类型的自然（台风或龙卷风）和人为灾害评估应用。研究发现，双反射散射功率是最有希望在像素级自动检测受灾害影响的城市地区的输入参数。还观察到，在雷达照明方面，需要极高分辨率的 POLSAR 图像来对定向城市街区进行高级城市区域监测。
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.