基于雷达和光学遥感数据地震堰塞湖监测方法研究
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摘要
由于地震形成的堰塞湖是一种严重的次生灾害,利用遥感对堰塞湖的动态范围进行监测已成为一种重要的手段。基于堰塞湖在光学遥感图像和雷达图像上的分布特征,为满足全天候实时监测的要求,本文建立了光学遥感数据和雷达微波数据进行堰塞湖监测的技术流程,阐述了从原始数据获取到堰塞湖面积范围确定的步骤。最后分别以光学遥感数据和微波遥感数据为例,对"5.12"汶川地震发生后形成的唐家山堰塞湖的动态范围信息进行了提取。
As landslide dam is a serious secondary disaster after earthquake.The remote sensing is an important method to monitor the dynamic range of the landslide dam.Based on the distribution feature of the landslide dam in optical and radar remote sensing images,the technical procedure of the monitoring on the landslide dam with the radar and optical sensing data is analyzed herein,so as to meet the requirement of the all-weather real-time monitoring on landslide dam,and then,the determination steps to obtain the area range of landslide is expounded as well.The information of the dynamic range of Tangjiashan Landslide Dam formed during "5.12" Earthquake is finally extracted by taking both the optical remote sensing data and the data from the microwave remote sensing as the study cases concerned.
As landslide dam is a serious secondary disaster after earthquake.The remote sensing is an important method to monitor the dynamic range of the landslide dam.Based on the distribution feature of the landslide dam in optical and radar remote sensing images,the technical procedure of the monitoring on the landslide dam with the radar and optical sensing data is analyzed herein,so as to meet the requirement of the all-weather real-time monitoring on landslide dam,and then,the determination steps to obtain the area range of landslide is expounded as well.The information of the dynamic range of Tangjiashan Landslide Dam formed during "5.12" Earthquake is finally extracted by taking both the optical remote sensing data and the data from the microwave remote sensing as the study cases concerned.
引文
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[2]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.
[3]王治华,徐起德,杨日红,等.中印边界附近帕里河上的滑坡灾害遥感调查[J].科技导报(北京),2007,25(6):27-31.
[4]Quincey D J,Richardson S D,Luckman A,et al.Early recognitionof glacial lake hazards in the Himalaya using remote sensing datasets[J].Global and Planetary Change.2007,56(1-2):137-152.
[5]Mckillop R J,Clague J J.Statistical,remote sensing-based ap-proachfor estimating the probability of catastrophic drainage from mo-raine-dammed lakes in southwestern British Columbia[J].Globaland Planetary Change.2007,56(1-2):153-171.
[6]童立强.“5.12”汶川大地震极重灾区地震堰塞湖应急遥感调查[J].国土资源遥感,2008(3):61-63.
[7]王伟,李圣伟,原松.“3S”技术在汶川大地震堰塞湖应急处理中的应用[J].人民长江,2008(22).
[8]范建容,田兵伟,程根伟,等.基于多源遥感数据的“5.12”汶川地震诱发堰塞体信息提取[J].山地学报,2008,26(3):257-262.
[9]王志一,甘甫平,李贤庆,等.CBERS-02B星数据在“5.12”地震灾害监测中的应用——以唐家山堰塞湖动态监测为例[J].国土资源遥感,2009(1):89-92.
[10]丁志雄,王义成.基于遥感与GIS的堰塞湖库区淹没分析与灾害评估[J].水利水电技术,2008,39(10):116-120.
[11]李宏顺.对卫星遥感大气订正6S模型中的算法的探讨[J].华中科技大学学报(自然科学版),2005,33(12):48-50.
[12]阿布都瓦斯提.吾拉木,秦其明,朱黎江.基于6S模型的可见光、近红外遥感数据的大气校正[J].北京大学学报(自然科学版),2004,40(4):611-618.
[13]范文义,孙晓芳,王岩,等.基于两种辐射传输模型的遥感数据大气校正及结果对比分析[J].东北林业大学学报,2009,37(7):121-124.
[14]张利,邓喀中,黄国满,等.合成孔径雷达影像几何处理方法对比实验研究[J].海洋测绘,2006,26(3):24-27.
[15]吕京国,李建平.星载合成孔径雷达影像正射纠正算法的研究与实现[J].遥感技术与应用,2002,17(4):230-234.
[16]易善桢,王志辉.不同方法在水体遥感提取中的应用实现[J].红外,2007,28(4):1-4.
[17]杨存建,魏一鸣.基于星载雷达的洪水灾害淹没范围获取方法探讨[J].自然灾害学报,1998,7(3):45-50.
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