辅助地形形态模式的数字遥感地貌制图方法研究

Digital Geomorphologic Mapping Method in Aided Terrain Morphology Mode by Remote Sensing

随着遥感和地理信息系统等技术的飞速发展,以手工和野外调查为主的传统地貌制图方法已不能满足信息时代的要求。鉴于此,该研究选择安徽省黄山市潜口镇为研究区,以资源三号卫星影像和1∶2.5万地形图为数据源,联合采用遥感和地理信息系统技术,分别提取等高线和高程点等地形信息,生成DEM,计算海拔高度、起伏度、坡度等地形形态矢量特征,然后按照地貌形态分类体系标准,结合地形图和遥感影像色调、纹理等特征,建立地貌遥感判读标志,在Arc GIS软件支持下,快速生成1∶2.5万数字地貌特征图。该方法在地形形态辅助下,使数字地貌制图工作更加高效便捷,为实际生产大幅节省了成本和时间。

With the rapid development of remote sensing and geographic information system technology, the traditional geomorphologic mapping has been unable to meet the requirements of the information era by hand and field survey. In view of this, taking Qiankou Town in Huangshan City of Anhui Province as the study area and ZY3 satellite images and topographic data as the data source, the extraction of contour lines and elevation points was used to generate the topographical parameters, such as DEM, calculate the altitude, slope terrain, fluctuation, and then according to the landform classification system standards, the geomorphie interpretation mark was established with the terrain data and remote sensing image tone, texture features, and the digital geomorphologie feature map was produced rapidly. The method can be efficient and convenient to make 1 ： 2.5 000 digital geomorphologic mapping in the aided terrain mode, saving the cost and time for the actual production.