数字流域模型的河网编码方法

Drainage network codification method for digital watershed model

在数字流域模型中提出了一种基于二叉树理论,并以二元形式表示的河网编码方法。这种编码方法能够实现任意河段的直接定位和高效的拓扑关系运算。阐述了数字流域模型河网编码方法的主要思路和基本定义,给出了这种编码方法对河网拓扑关系的描述方式,并结合实例分析了其数值特征。给出了数字流域模型的河网编码中若干具体问题的算法。

A binary tree-based and dyadic This method is able to locate any section of paper issues way with its the framework and definition of own numerical character. Some indicated codification method is proposed in the digital watershed model （DWM）. drainage network directly and operate the topological relationship effectively. This the codification method in the DWM, delineates a drainage network in this special detailed arithmetics of the codification method in the DWM is presented in an appendix.