摘要
本文以卫星遥感为信息源，结合图像处理和地理信息系统技术，研究了在长江口北支试验区，获取大水域水下地形空间信息的方法与问题。水下地形遥感测量，在水深8～10m以内的测深基本可定量，更深水道的平面分布可以准确定位。因此，对许多水域可进行水下地形动态监测，尤其是一些致灾过程的遥感监测。
Taking the remote sensing from the satellite as the source of information, combined with the picture treatment and the teehnology of the geographical information system, this paper studied the methods and remainedproblems in obtaining space information of underwater topography of the larger water area on the north branchtest area at the entrance of the Yangtze River. The survey in support of remote sensing to the underwater topography can be fixed quantitatively within the water depth of 8 to 10m, with this technique the plane distributionin the deeper water channel can be accurately positioned. Therefore the dynamic survey to the underwater topography can be carried out in many water areas, especially some survey of remote sensing in the process of causingsuffering.
基金
河海大学水资源开发与利用专业实验室开发基金
武汉测绘科技大学测绘遥感信息工程国家重点实验室课题基金
国家自然科学基金!59579011
关键词
遥感测量
长江口
水下地形测量
图像处理
survey in support of remote sensing underwater topography entrance of the Yangtze River
