四川省芦山“4·20”7.0级地震公路灾情遥感监测评估
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摘要
四川省芦山"4·20"7.0级强烈地震发生后,次生地质灾害造成多处公路损毁,快速、准确地监测公路灾情,是应急救灾一项基础而重要的工作。遥感影像信息提取是获取公路灾情的一种有效途径。利用震后机载航空影像与国产卫星影像,结合交通运输部相关基础数据,对公路灾情开展了监测与评估。在公路周边共发现433处地质灾害点,灾害类型以崩塌为主。其中对公路已造成影响的灾害点197处,损毁公路总长度约10km。另有潜在危险性较大的灾害点63处,对公路构成严重威胁,需注意加强防范。经实地验证,公路灾情信息提取结果真实可靠。信息提取与分析结果已分别在震后第二天和第三天上报到交通运输部,为高效地组织开展公路抢修保通提供了科学的依据。
After the 7.0magnitude Sichuan Lushan earthquake occurred on Apr.20th,2013,the secondary geological disasters caused many damages of highway.It was an important and basic job of emergency relief for highway disaster monitoring fastly and accurately.There was a mature and effective way of obtaining highway disaster information based on remote sensing images and information extraction technology.Utilizing domestic remote sensing satellite images as well as airborne aerial images acquired by Institute of Remote Sensing and Digital Earth,Chinese Academy of Sciences,it focused on highway disasters monitoring with image-based visual interpretation and analysis methods.After information extraction,433geological disasters were found around roads and collapse was the main types of disaster.197disasters have impacted highway and the total length of damaged sections was about 10km.Meantime,there were 63disasters became a serious threat to highway,which should be paid attention to analyse.The field investigation proved the road disaster extraction results were reliable.The highway disaster monitoring result was provided to the Ministry of Transport of People’s Republic of China within two days after the earthquake,and it was a sufficient basis for carrying out road repair scientifically and effectively.
After the 7.0magnitude Sichuan Lushan earthquake occurred on Apr.20th,2013,the secondary geological disasters caused many damages of highway.It was an important and basic job of emergency relief for highway disaster monitoring fastly and accurately.There was a mature and effective way of obtaining highway disaster information based on remote sensing images and information extraction technology.Utilizing domestic remote sensing satellite images as well as airborne aerial images acquired by Institute of Remote Sensing and Digital Earth,Chinese Academy of Sciences,it focused on highway disasters monitoring with image-based visual interpretation and analysis methods.After information extraction,433geological disasters were found around roads and collapse was the main types of disaster.197disasters have impacted highway and the total length of damaged sections was about 10km.Meantime,there were 63disasters became a serious threat to highway,which should be paid attention to analyse.The field investigation proved the road disaster extraction results were reliable.The highway disaster monitoring result was provided to the Ministry of Transport of People’s Republic of China within two days after the earthquake,and it was a sufficient basis for carrying out road repair scientifically and effectively.
引文
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[15]Wei Chengjie,Liu Yalan,Wang Shixin,et al.Investigation andAssessment of Damage in Earthquake Wenchuan SichuanQuake based on Remote Sensing[J].Journal of Remote Sens-ing,2008,12(5):673-682.[魏成阶,刘亚岚,王世新,等.四川汶川大地震震害遥感调查与评估[J].遥感学报,2008,12(5):673-682.]
[16]Ren Yuhuan,Liu Yalan,Wei Chengjie,et al.Study on Infor-mation Extraction Method to Road Damage in WenchuanEarthquake based on High-resolution Remote Sensing Images[J].Remote Sensing Technology and Application,2009,24(1):52-56.[任玉环,刘亚岚,魏成阶,等.汶川地震道路震害高分辨率遥感信息提取方法探讨[J].遥感技术与应用,2009,24(1):52-56.]
[17]Li Fengchun.For Collecting Earthquake Disaster Informa-tion,2056PDA Has Been Released in Sichuan Province[N].Huaxi Metropolis Daily,2012-11-13(8).[李逢春.搜集地震灾情我省发放灾情采集PDA共2056台[N].华西都市报,2012-11-13(8).]
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[3]China Seismological Bureau.Ms 7.0Lushan,Sichuan Earth-quake:196Dead[EB/OL].http://www.cea.gov.cn/pub-lish/dizhenj/468/553/100342/100345.20130424151225623554842/index.html,2013-04-24/2013-05-28.[中国地震局.四川省芦山“4.20”7.0级强烈地震已造成196人死亡[EB/OL].http://www.cea.gov.cn/publish/dizhenj/468/553/100342/100345/201304241512256235.54842/index.html,2013-04-24/2013-05-28.]
[4]China Seismological Bureau.Ms 7.0Lushan,Sichuan Earth-quake Aftershocks Were Recorded 8182Times.[EB/OL].ht-tp://www.cea.gov.cn/publish/dizhenj/468/553/100342/100346/20130508090518951331596/index.html,2013-05-07/2013-05-07.[中国地震局.四川省芦山“4.20”7.0级强烈地震共记录到余震8182次[EB/OL].http://www.cea.gov.cn/publish/dizhenj/468/553/100342/100346/20130508090518951331596/index.html,2013-05-07/2013-05-07.]
[5]Editorial Staff.40hours:Lifeline of Lushan Are Being Reo-pened[J].China Highway,2013,(9):28-33.[本刊编辑部.40小时:抢通芦山“生命线”[J].中国公路,2013,(9):28-33.]
[6]Sina.National Road No.318 Has Been Open to Traffic,ButProvince Road No.210is Still Cut off[EB/OL].http://news.sina.com.cn/c/2013-04-20/170026890577.shtml,2013-04-20/2013-04-21.[新浪.国道318线塌方清除恢复通行省道210线仍中断[EB/OL].http://news.sina.com.cn/c/2013-04-20/170026890577.shtml,2013-04-20/2013-04-21.]
[7]Xinhua News.Lushan-Baoxing Highway Is Free Again andBaoxing Is No Longer Alone[EB/OL].http://news.xinhua-net.com/politics/2013-04/22/c_124610222.htm,2013-04-22/2013-04-22.[新华网.芦宝公路基本畅通“生命孤岛”不再“孤单”[EB/OL].http://news.xinhuanet.com/politics/2013-04/22/c_124610222.htm,2013-04-22/2013-04-22.]
[8]China News Network.The Land Route to Baoxing CountyHas Been Opened,and Transportion in This County Was Dam-aged Seriously[EB/OL].http://www.chinanews.com/gn/2013/04-21/4749913.shtml,2013-04-21/2013-04-21.[中国新闻网.通往宝兴一陆路打通境内交通损毁严重[EB/OL].ht-tp://www.chinanews.com/gn/2013/04-21/4749913.shtml,2013-04-21/2013-04-21.]
[9]Su Fenghuan,Liu Hongjiang,Han Yongshun.The Extractionof Mountain Hazard Induced by Wenchuan Earthquake andAnalysis of Its Distributing Characteristic[J].Journal of Re-mote Sensing,2008,12(6):956-963.[苏凤环,刘洪江,韩用顺.汶川地震山地灾害遥感快速提取及其分布特点分析[J].遥感学报,2008,12(6):956-963.]
[10]Liu Yalan,Zhang Yong,Ren Yuhuan,et al.Highway DamageMonitoring and Assessment for Wenchuan Quake based onRemote Sensing and Its Information Integration[J].Journal ofRemote Sensing,2008,12(6):933-941.[刘亚岚,张勇,任玉环,等.汶川地震公路损毁遥感监测评估与信息集成[J].遥感学报,2008,12(6):933-941.]
[11]Dong Yanfang,Yuan Xiaoxiang,Wang Xiaoqing,et al.Analy-sis of Surface Ruptures Caused by the 2010 Ms 7.1Yushu,Qinghai Earthquake Using High Resolution Remote SensingImages[J].Earthquake,2012,32(1):82-92.[董彦芳,袁小祥,王晓青,等.2010年青海玉树MS7.1地震地表破裂特征的高分辨率遥感分析[J].地震,2012,32(1):82-92.]
[12]Zhao Fujun.Study on Seismic Hazard Information ExtractionTechnology base on Remote Sensing[J].Recent Developments inWorld Seismology,2011,(2):36-37.[赵福军.遥感影像震害信息提取技术研究[J].国际地震动态,2011,(2):36-37.]
[13]Chen Liujia.Summary of Application of Remote Sensing Ea-rthquake Monitoring[J].Remote Sensing Information,2012,(1):105-109.[陈六嘉.遥感地震监测应用综述[J].遥感信息,2012,(1):105-109.]
[14]Xu Pengjie,Deng Lei.Application of Remote Sensing in Fieldof Disaster Reduction an Response[J].Remote Sensing Tech-nology and Application,2011,26(4):512-519.[徐鹏杰,邓磊.遥感技术在减灾救灾中的应用[J].遥感技术与应用,2011,26(4):512-519.]
[15]Wei Chengjie,Liu Yalan,Wang Shixin,et al.Investigation andAssessment of Damage in Earthquake Wenchuan SichuanQuake based on Remote Sensing[J].Journal of Remote Sens-ing,2008,12(5):673-682.[魏成阶,刘亚岚,王世新,等.四川汶川大地震震害遥感调查与评估[J].遥感学报,2008,12(5):673-682.]
[16]Ren Yuhuan,Liu Yalan,Wei Chengjie,et al.Study on Infor-mation Extraction Method to Road Damage in WenchuanEarthquake based on High-resolution Remote Sensing Images[J].Remote Sensing Technology and Application,2009,24(1):52-56.[任玉环,刘亚岚,魏成阶,等.汶川地震道路震害高分辨率遥感信息提取方法探讨[J].遥感技术与应用,2009,24(1):52-56.]
[17]Li Fengchun.For Collecting Earthquake Disaster Informa-tion,2056PDA Has Been Released in Sichuan Province[N].Huaxi Metropolis Daily,2012-11-13(8).[李逢春.搜集地震灾情我省发放灾情采集PDA共2056台[N].华西都市报,2012-11-13(8).]
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