• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Conference on Water and Environment(WE-2003); 20031215-18; Bhopal(IN) >Monitoring And Assessment Of Rasheed Shoreline Erosions Utilizing Remote Sensing Change Detection Technique
【24h】

Monitoring And Assessment Of Rasheed Shoreline Erosions Utilizing Remote Sensing Change Detection Technique

机译：利用遥感变化检测技术监测和评估拉希德海岸线侵蚀

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Egypt has established the High Aswan Dam for protecting the country from high floods and controlling the floodwater along successive decades. The dam proves its remarkable benefits, protecting the Nile valley from damage in one year and provides the country with the water necessary for agriculture purposes in another year. However, some side effects appear, such as erosion of North coastal zone as the High Dam nearly prevents the sediment from entering the river. To overcome this problem, various projects have been carried out to protect the North coastal region from serious erosion especially in Rasheed. National Water Research Center (NWRC) institutes contribute to these efforts. Among that is a project for monitoring and assessment of Rasheed shoreline erosion carried out by the Survey Research Institute (SRI). Remote sensing change detection technique is utilized for erosion monitoring and variations assessment. Base maps developed by photogrammetric techniques in 1991 are considered as the reference for the change detection process. Successive SPOT remote sensing images, acquired in various dates (1997 and 2000), are used in this research. These images are radiometrically and geometrically corrected using Erdas Imagine software and used for changes monitoring. The results show that more efforts are necessary for protecting this region, as serious variations remarkably exist. Future images are needed for continuous monitoring and assessment. High-resolution satellite imagery (IKONOS & QUICK BIRD) might be useful to be used at certain areas, such as river downstream for acquiring much more accurate observations about this sensitive area.
机译：埃及已经建立了高阿斯旺水坝，以保护该国免遭高洪灾的影响，并在随后的几十年中控制洪水。该水坝证明了其非凡的效益，可以在一年内保护尼罗河谷免遭破坏，并在一年内为该国提供农业所需的水。但是，会出现一些副作用，例如北部沿海地区的侵蚀，因为高坝几乎阻止了沉积物进入河流。为了克服这个问题，已经开展了各种项目来保护北部沿海地区免受严重侵蚀，特别是在拉希德。国家水研究中心（NWRC）的机构为​​这些努力做出了贡献。其中包括由调查研究所（SRI）进行的Rasheed海岸线侵蚀监测和评估项目。遥感变化检测技术用于侵蚀监测和变化评估。 1991年通过摄影测量技术开发的底图被视为变化检测过程的参考。这项研究使用了在不同日期（1997年和2000年）获得的连续SPOT遥感图像。这些图像使用Erdas Imagine软件进行放射线和几何校正，并用于变化监控。结果表明，由于存在明显的严重差异，因此需要更多的努力来保护该地区。需要连续不断的监视和评估未来的图像。高分辨率卫星图像（IKONOS和QUICK BIRD）可用于某些区域（例如下游河），以获取有关此敏感区域的更准确的观测结果。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号