| 基于合成孔径雷达的城市建筑地震受损分析 |
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| 引用本文： | 张建强,崔鹏,葛永刚,向灵芝.基于合成孔径雷达的城市建筑地震受损分析[J].灾害学,2010,25(Z1). |
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| 作者姓名： | 张建强 崔鹏 葛永刚 向灵芝 |
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| 作者单位： | 1. 中国科学院山地灾害与地表过程重点实验室,中国科学院成都山地灾害与环境研究所,四川,成都,610041;中国科学院研究生院,北京,100049
2. 中国科学院山地灾害与地表过程重点实验室,中国科学院成都山地灾害与环境研究所,四川,成都,610041 |
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| 基金项目： | 国家重点基础研究发展计划“973”计划资助项目(2008CB425890); 科学支撑计划资助项目(2006BAC10B04); 中科院知识创新工程重要方向项目(KZCX2-YW-Q03-5-2) |
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| 摘 要： | 汶川地震灾区位于青藏高原东缘,该地区云雨天气较多,光学遥感受制约较大,而微波能够穿透云、雾、小雨等,且不受太阳光线的影响,雷达遥感具有全天时、全天候的特点,因而可以弥补光学遥感的不足。根据房屋受地震破坏后影响雷达回波强度,在雷达影像上表现为亮度及纹理不同的原理,本论文利用不同分辨率的COSMO-SkyMed和Radarsat等SAR数据,将其与震前的SPOT影像进行配准后,通过纹理分析等处理,对都江堰市区、北川县城曲山镇等受灾较为严重的城镇进行分析解译,利用雷达影像判读出倒塌房屋的信息,以及地震次生山地灾害对城镇的破坏。
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| 关 键 词： | 汶川地震 房屋受损 合成孔径雷达 |
Analysis of Damaged Building by Wenchuan Earthquake Based on SAR Images |
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| Zhang Jianqiang,Cui Peng,Ge Yonggang,Xiang Lingzhi.Analysis of Damaged Building by Wenchuan Earthquake Based on SAR Images[J].Journal of Catastrophology,2010,25(Z1). |
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| Authors: | Zhang Jianqiang Cui Peng Ge Yonggang Xiang Lingzhi |
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| Institution: | Zhang Jianqiang1,2,Cui Peng1,Ge Yonggang1 and Xiang Lingzhi1,2(1.Key Laboratory of Mountain Hazards and Earth Surface Process,Instituteof Mountain Hazards and Environment,Chinese Academy of Sciences,Chengdu 610041,China,2.Graduate University of Chinese Academy of Sciences,Beijing 100049,China) |
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| Abstract: | The disaster area of Wenchuan earthquake located in the eastern margin of Tibetan plateau,where cloud and rain were more common,so the optical remote sensing was restricted.The microwave remote sensing could work all time and all-weather for the microwave could penetrate through cloud,fog and light rain,and it also without limitation of night.The buildings which damaged by the earthquake would influence the echo intensity of microwave,which coursed the differences of brightness and texture in the images.The... |
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| Keywords: | Wenchuan earthquake damage of buildings SAR |
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