辐射沙脊群地貌遥感制图

Geomorphologic mapping by remote sensing in radial submarine sand ridges

江苏省苏北岸外辐射沙脊群是由潮流沙脊组成的大型砂质堆积体,其海区水动力环境及地质地貌复杂多变,难以开展实地调查。根据遥感图像反映的色调、纹理信息,结合实测地形数据以及历史海图、历史地貌图等,进行了辐射沙脊群地貌遥感制图,并对辐射沙脊群地貌进行了空间特征分析。利用遥感图像绘制辐射沙脊群地貌图,对研究辐射沙脊群的地貌结构及辐射沙脊群空间资源开发利用,都能提供切实可靠的科学依据。

Radial submarine sand ridges are large - sized sandy accumulation bodies in offshore area of northern Jiangsu. Because of their complicated hydrodynamic environment and geomorphology, it is very difficult to obtain the field investigation data. This paper is based on the color and texture reflected on the remote sensing image, Geomorphologic mapping was conducted in combination with the measured terrain data and historical charts as well as the historical geomorphological map. In addition, the spatial characteristics were analyzed. The results show that the use of remote sensing images to draw the geomorphologic map of radial submarine sand ridges can provide practical and reliable scientific basis not only for the study of the geomorphologic structure but also for the development and utilization of spatial resources.