滩涂现状及冲淤变化遥感定量调查方法

Quantitative Investigation of Existing State and Evolution of Tidal Land With Remote Sensing

本文以应用卫星遥感资料调查杭州湾北岸滩涂为例,介绍了滩涂及冲淤变化调查的一种新方法即遥感定量法.以实测滩涂光谱反射率为基础.并进行适当地潮位订正,经计算机数字图像处理识别分类,便可获得具有一定精度的滩涂现状图,叠加多时相滩涂现状分析冲淤变化.

A new way—quantitative remote sensing—for investigating the existing state and evolution of tidal land has been introduced in this paper.The correct state of tidal land has been obtained on the basis of spectral charac -teristics and tidal stage correction by digital image processing and classi- fication.Evolution has been analysed by overlaying multitemporal existing state maps of tidal land.