高分辨率SAR数据在5·12汶川地震灾害监测与评估中的应用
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摘要
2008-05-12四川省汶川县境内发生8.0级地震,紧接而来的降雨天气严重影响了地震灾害遥感监测的实施。合成孔径雷达以其穿透云雾的能力,备受人们关注,成为抗震救灾遥感信息保障的重要数据源。利用COS-MO、TerraSAR、RADARSAT等高分辨率SAR数据对5·12汶川地震灾害的监测表明,合成孔径雷达在重大自然灾害遥感监测中起着非常重要的作用,特别是在多云多雨环境下合成孔径雷达起到的作用更加明显。
One heavy earthquake with MS8.0 occurred on May 12,2008 in Wenchuan County,Sichuan province.After the earthquake,the bed weather has made the optical satellite acquired data difficultly.Microwave can transmit through cloud and rain,so synthetic aperture radar images has widely used in Wenchuan earthquake hazard monitoring and assessment.Using high-resolution SAR images,such as COMOS,TerraSAR,RADARSAT,the building and roads which has been damaged by earthquake were monitored and the landslides,debris flow,landslide-blocked lake were recognized.The result shows that high-resolution SAR images are a very important data source in natural hazard monitoring and assessment,especially in the cloudy and rainy weather.
One heavy earthquake with MS8.0 occurred on May 12,2008 in Wenchuan County,Sichuan province.After the earthquake,the bed weather has made the optical satellite acquired data difficultly.Microwave can transmit through cloud and rain,so synthetic aperture radar images has widely used in Wenchuan earthquake hazard monitoring and assessment.Using high-resolution SAR images,such as COMOS,TerraSAR,RADARSAT,the building and roads which has been damaged by earthquake were monitored and the landslides,debris flow,landslide-blocked lake were recognized.The result shows that high-resolution SAR images are a very important data source in natural hazard monitoring and assessment,especially in the cloudy and rainy weather.
引文
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[4]Wang Xiaoqing,Wei Chengjie,Miao Chonggang,et al.The extrac-tion of seismic damage from remote sensing images:A case study of Bachu-Jiashi earthquake with MS6.8occurred on Feb.24,2003[J].Earth Science Frontiers,2003,10(Suppl):265～291[王晓青,魏成阶,苗崇刚等.震害遥感快速提取研究——以2003年2月24日巴楚一伽师6.8级地震为例[J].地学前缘,2003,10(特刊):265～291]
[5]Ning Baokun,Qu Guosheng,Zhang Ning,et al.Application of IKONOS imagery to earthquake disaster reduction and damage as-sessment in urban area[J].Seismology and geology,2004,26(1):161～168[宁宝坤,曲国胜,张宁,等.IKONOS卫星影像在城市防震减灾及震害评价中的应用研究[J].地震地质,2004,26(1):161～168]
[6]Yuan Zhongxia,Wang Lanmin.Urban feature recognition for seis-mic risk assessment using high-resolution satellite image[J].World earthquake engineering,2004,20(3):135～140[袁中夏,王兰民.利用高分辨率卫星影像进行地震损失评价所需的城市特征识别[J].世界地震工程,2004,20(3):135～140]
[7]Zhang Guifang,Shan Xinjian,Yin Jingyuan.Application of high-resolution satellite remote sensing image in quich pre-estimate of seismic disaster[J].Journal ofgeodesyand geodynamics,2005,25(2):63～68[张桂芳,单新建,尹京苑.高分辨率卫星影像图在震害快速预估中的应用[J].大地测量与地球动力学,2005,25(2):63～68]
[8]Zhu Min,Feng Zhongke,Xu Zhimin.Prospect of digital seismic damage evaluation[J].Earthquake engineering and engineering vi-bration,2005,25(6):109～112[朱敏,冯仲科,徐志敏.数字震害评估的发展与应用[J].地震工程与工程振动,2005,25(6):109～112]
[9]Wang Long,Wang Xiaoqing,Ding Xiang,et al.Study on loss as-sessment of construction earthquake damage based on remote sensing and GIS[J].Earthquake,2007,27(4):77～83[王龙,王晓青,丁香等.基于遥感和GIS的建筑物震害损失评估方法研究与实现[J].地震,2007,27(4):77～83]
[10]LüJietang,Wang Zhihua,Zhou Chenghu.A tentative discussion on the monitoring of the Yigong landslide-blocked lake with satellite remote sensing technique[J].Acra Geoscientia Sinica,2002,23(4):363～368[吕杰堂,王治华,周成虎.西藏易贡滑坡堰塞湖的卫星遥感监测方法初探[J].地球学报,2002,23(4):363～368]
[11]Wang Zhihua,Xu Qide,Yang Rihon,et al.Remote sensing sur-vey for a landslide disaster in the Boundary River between China and India[J].Science&Technology Review,2007,25(6):26～31[王治华,徐起德,杨日红.中印边界附近帕里河上的滑坡灾害遥感调查.科技导报,2007,25(6):26～31]
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