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黄河三角洲海岸线遥感动态监测
Dynamic Monitoring of Coastline in the Yellow River Delta by Remote Sensing
查看参考文献13篇
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文摘
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黄河三角洲是世界上海岸线变迁最快的地区之一.遥感与GIS技术相结合,能准确及时地监测黄河三角洲海岸线的动态演变.本文以1976年以来多时相遥感影像为主要数据源,通过几何精校正与配准,形成统一投影与坐标体系的遥感影像,运用平均高潮线法,对20景时间序列影像经分类处理后提取海岸线;另经GIS叠加分析,剖析了现行黄河河口、钓口河口地区海岸线的演变过程及其规律. |
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其他语种文摘
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The Yellow River is well-known for its highest sediment contents of all rivers in the world. Due to the huge sediment to the coast, the Yellow River Delta is in a state of continuous dynamic change. The most recent shift occurred in 1976, and a new sub-delta is being created since then. This paper describes the method and technology for monitoring the coastline change of the Yellow River Delta using remote sensing. The multi-temporal Landsat and other satellite images were used as the monitoring data source. The images were registered to the high precision GIS database, and they were matched each other and matched with the database. All the images have the same coordinate system. A mean high water (MHW) model was developed for extracting coast-lines from remote sensing images. 20 coastlines were extracted from different years. The result shows that a new territory of 330km~2 was formed in the present estuary area from 1976 to 2000. At the same time, a territory of 137km~2 was eroded in the Diaokou estuary area to the north of the Yellow River Delta. In conclusion, it is the substantial foundation for the water and sedimentation of the Yellow River to shape the delta. That is, it is the essential factor leading to coastline evolution. |
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来源
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地球信息科学
,2004,6(1):94-98 【扩展库】
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关键词
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海岸线
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动态监测
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遥感
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黄河三角洲
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地址
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中国科学院地理科学与资源研究所, 资源与环境信息系统国家重点实验室, 北京, 100101
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语种
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中文 |
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ISSN
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1560-8999 |
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学科
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测绘学;海洋学 |
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基金
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中国科学院地理科学与资源研究所知识创新工程领域前沿项目
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国家863计划
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文献收藏号
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CSCD:1501437
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参考文献 共
13
共1页
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