| 摘要: |
| 陆地卫星自20世纪70年代初发射以来即用于岸线动态的研究，SPOT卫星资料的利用更增加了该类研究的精度， Radarsat影像由于其对水陆界线的敏感而被用于海岸带制图；航空摄影影像由于其比例尺大，空间分辦率高，成像时间可以人为控制，便于低潮时海滩大比例尺制图等优点而被广为利用。自20世纪三四十年代以来，已经有了许多海滩的航空照片，据此可以获得较长系列的海滩变化信息。 |
| 关键词: 卫星遥感 岸线变化 航空摄影测量 |
| DOI： |
| 分类号: |
| 基金项目:中国科学院海洋研究所调查研究报告第3839号。国家自然科学基金项目，第49806003号和山东省国土资源遥感综合调查项目资助。 |
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| OBTAINING THE BEACH CHANGES INFORMATION FROM DIGITAL PHOTOGRAMMETRY AND SATELLITE IMAGES |
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HUANG Haijun1, XU Xuegong2
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1.Institute of Oceanology, The Chinese Academy of Sciences;2.Beijing University
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| Abstract: |
| Digital photogrammetry, satellite images, as well as nautical maps were used to monitor the shoreline changes of the northern Jiangsu Province, the Huanghe River Delta and beaches in the eastern part of Shandong Province and Australia. Practical methods are proposed to obtain shoreline position from aerial photographs for sand beach with small velocity of change and from satellite images for mud flat with large velocity of change but very small beach slope. Analysis of errors for each method showed that the precision (relative errors) was 0.16m in vertical direction and 0.75m in horizontal direction (digital photogrammetry) and about 40-50m (landsat images). |
| Key words: digital photogrammetry satellite images shoreline change |
