厦门海岸线遥感动态监测研究

Dynamic Monitoring of the Coastline in Xiamen by Remote Sensing

以厦门地区海岸影像为研究对象,根据不同海岸类型的地貌特点,采用不同的海岸线遥感解译方法提取出1987年、1997年和2007年的海岸线,并进行岸线变迁原因分析,研究结果表明:人工海岸、基岩海岸、砂质海岸及红土海岸的海岸线解译标志明显,提取效果较好,基本能够实现计算机自动提取;淤泥质海岸在遥感图像上呈现复杂的边缘,无理想的线性特征自动提取技术,是海岸线提取中的难点。

Taking the images of Xiamen coastal areas as the research object and in accordance with tne cnaracteristics of different types of coastal landform, this paper uses different interpretation methods of remote sensing images for the coastline to extract the coastlines of 1987, 1997 and 2007 and analyzes the causes of shoreline evolution. The research results show that the artificial coast, bedrock coast, sandy coast and clay coast mark the clear interpretation of the coastline, are extracted in a better way and can achieve the automatic extraction by the computer, while the mud coast shows the complex edge in the remote sensing ima- ges, has no ideal linear features for the automatic extraction technology and becomes the difficult point in the coastline extraction.