遥感信息在南水北调西线工程区构造解译中的应用

以南水北调西线工程区的构造解译为例,对信息源选择、波段组合、影像融合、几何精校正、图像镶嵌等一系列处理方法进行针对性研究,证实了该方法组合对南水北调西线工程区的遥感影像处理的有效性,进而建立了色调、形状、地层或岩体被错断、地貌形态差异和水系格局等解译标志.通过对断裂构造解译的实地验证,表明解译准确率达到90%以上,位置误差小于15m.与常规地质调查方法相比,遥感信息具有视域宽广、内容丰富、主要断裂突出、受地面条件限制较少、有效提高野外验证效率的优势.

The application of remote sensing information in the structure interpretation of the west route project of south-to-north water transfer

In the structure interpretation of west route project of south-to-north water transfer some remote sensing image processing techniques such as data source selection, band combination, image fusion, precision geometric correction, image mosaic are deliberately studied. The combination of these processing methods applied to the images is proved to be effective. The interpretation signs including hue, shape, cut stratum or rock body, physiognomy difference and water system pattern are then established according to the resultant image. The study shows that the veracity of remote sensing interpretation about faults is more than 90 percent, and the error of location is less 15 m. Remote sensing information is superior to conventional geological surveying in such aspects as broad view, abundant content, prominent main faults signs, less ground condition limits and high efficiency of field validation.