长江口水域水深遥感研究

通过对长江口南支水域Ｌａｎｄｓａｔ－ＴＭ遥感图像进行了水深专题信息的增强处理，选择ＴＭ４／ＴＭ２波段组合，结合当地同一时期实测水下地形图资料，建立了该水域水民影像光谱值之间的统计相关关系，分析了影响水深遥感精度的原因并采用幂函数形式的修正项对相关模式进行修正加以解决，提出：图像处理质量的高低和相关公式建立的好坏是提高水深遥感精度的关键所在。

Study of RS Fathoming in Changjiang Estuary

Through the water depth information enhancing of Landsat TM image at the south branch of the Changjiang River Estuary,the wave band combination of TM4/TM2 is chosen for the development of water depth image spectral value correlation model.The factor is analyzed affecting the precision of remote sensing of water depth.It is pointed out that the good quality of image processing and correlation model is the key to the improvement of the water depth map's precision.