一、问题提出在水文地质领域中应用遥感技术虽已由目视解译发展到光电判释和开始计算机的图象处理试验,但由于受仪器和设备的限制,未能普遍。而航片的图象较大,成本低廉,索取方便。较多的单位仍是收集航片,根据影象所提供的信息,直接解译和分析工作区内的地质、水文地质条件,往往能收到满意的效果。从而达到解决一些水文地质与工程地质勘察问题。 I. PROBLEMS PROBLEMS Although the application of remote sensing technology in hydrogeology has been progressing from visual interpretation to photodetector interpretation and the computer image processing test, it has not been universal due to the limitations of instruments and equipment. The aerial image larger, low cost, easy access. More units still collect aerial photos. According to the information provided by the images, direct interpretation and analysis of the geological and hydrogeological conditions in the work area can often yield satisfactory results. So as to solve some hydrogeology and engineering geological survey.