TM资料在断裂构造及山地灾害调查中的应用  

APPLICATION OF TM IMAGE IN THE SURVEY OF GEOLOGICAL FRACTURE AND MOUNTAIN HAZARDS

作　　者：俞建强[1] 周斌[1] 王深法[1] 

机构地区：[1]浙江大学资源科学系,杭州310029

出　　处：《国土资源遥感》2002年第4期40-43,共4页Remote Sensing for Land & Resources

基　　金：浙江省"九.五"重点科研项目 (0 0 110 3 2 13 )--"浙江省滑坡;泥石流综合成因及县 (市 )级区划"研究

摘　　要：M资料经过定向滤波、主成分分析、线性增强和假彩色合成处理后 ,采用目视综合解译 ,获得线性影像综合解译图 ,经野外校核后编制完成庆元县 1 5万断裂构造分布图。文章最后讨论了断裂分布与山地灾害空间分布的相关性 ,得出了在受深 (大 )断裂强烈影响的区域 ,山地灾害的空间分布与断裂交叉度和断裂密度具有一定的正相关 ,但不显著 ;火山构造作用引起的山地灾害斑块状分布较为明显。In order to enhance the linear image, the authors conducted directional filtering of the TM image and digital elevation model (DEM), and then used false color composite technique to produce a base map. Through interpretation of the base map and field verification, the distribution of fractures in Qingyuan County was mapped. The spatial correlation between fractures and mountain hazards was also investigated. The results show that if a region is affected intensely by deep faults, the positive correlation between mountain hazards and intersection density of fractures or density of fractures are existent but not notable. By contrast, the porphyritic distribution of mountain hazards caused by volcano-tectonic activity is quite obvious.

关 键 词：TM图像 图像处理 断裂构造 山地灾害 

分 类 号：P694[天文地球—地质学] TP79[自动化与计算机技术—检测技术与自动化装置]