基于DEM辅助的崩塌与滑坡灾害遥感提取研究  

Identification of landslides and collapses based on remotely sensed imagery and DEM

作　　者：张明媚[1,2] 薛永安[2] 李军[3] 尚长生 

机构地区：[1]山西能源学院地质测绘工程系,山西太原030600 [2]太原理工大学矿业工程学院,山西太原030024 [3]山西省地质环境监测中心,山西太原030024

出　　处：《矿山测量》2016年第6期28-31,共4页Mine Surveying

摘　　要：文中以山西太原万柏林区为研究区,选择崩塌、滑坡两种灾害类型,以该区高分辨率遥感影像、DEM、基础地理信息数据为数据源,研究通过地貌分区、坡度约束下的ISODATA非监督分类方法提取该区的地质灾害潜在危害区,进而配合三维可视化模型对潜在危害区采用人机交互的方式解译崩塌与滑坡灾害点,最后通过野外核查方式验证、修正成果,快速得到研究区的地质灾害分布图。结果表明:研究区内崩塌、滑坡地质灾害点共有21处,其中:滑坡12处,崩塌9处。地质灾害潜在危害区的确定对于工作区灾害点的快速提取具有指导意义,可应用于生产实践。Taking the collapse and landslide as the examples of Wanbailin District, Taiyuan, Shanxi, the potentiallydangerous areas caused by the two geological hazards are identified based on high - resolution remote sensing image,DEM and basic geographic information. The ISODATA （Iterative Self-Organizing Data Analysis Technique） unsu-pervised classification method is used to identify the potentially dangerous areas by combining the geomorphologiczoning and the slope constraints. Furthermore, the collapses and landslides are identified by a man -machine inter-active method and the three -dimensional visual model. The identification results are validated and modified by thefield surveys to obtain the geologic - hazard maps. The analysis results show that a total of twenty one geologic - haz-ard areas are identified including twelve landslides and nine collapses. This study can provide guidance for fast iden-tification of disaster areas and can be applied for practical production.

关 键 词：地质灾害 潜在危害区 DEM 信息提取 

分 类 号：P237[天文地球—摄影测量与遥感]