中文摘要：

文章提出一种基于发展多期影像和归一化水体指数(NDWI)的砂质岸线自动提取方法,以山东半岛海阳沙滩为实验区,应用2005年多个月份的7景Landsat 5TM遥感影像为数据源,提取实验区砂质岸线。利用908专项修测岸线对提取的海岸线进行精度检验。结果表明,岸线偏差距离为20.9m、均方根误差(RMSE)为33.6m。该方法可为砂质岸线的提取与变迁分析研究提供参考依据。

英文摘要：

The study developed an automatic method of extracting sandy coastline based on multi-tempo-ral images and NDWI index,and took Haiyang beach which located at Shangdong Peninsula as the exper-imentation area.7 typical remote sensing images of Landsat5 TM in several months of 2005 were used to extract sandy coastline,and then the accuracy of the extracted coastline was examined with 908 special re-survey coastline.The results showed that the deviation distance of coastline and RMSE were 20.9m and 33.6m respectively.The method that developed in this study can provide reference for sandy coastline ex-tracting and analysis of changing.