数字流域河网编码方法应用实例  

Application of the drainage network codification method in Digital Watershed Model

作　　者：邓利[1] 李铁键[1] 刘家宏[1] 王光谦[1] 

机构地区：[1]清华大学水沙科学教育部重点实验室,北京100084

出　　处：《泥沙研究》2007年第3期68-72,共5页Journal of Sediment Research

摘　　要：数字流域模型的河网编码方法使河网中河段的直接定位和拓扑关系运算更为方便。将此方法应用于黄土高原多沙粗沙区的河网,按河网自然的拓扑形态和流域的天然分界将该地区河网划分为4级37区。数字流域河网编码方法在多沙粗沙区的水沙模型计算和并行计算调度中的应用表明,该方法能够使产流产沙和演进的模拟过程更符合自然河流的发育规律,并易于高效并行调度算法的实现。The drainage network codification method of Digital Watershed Model makes it possible to locate any section of drainage network directly and operate the topological relationship effectively. The authors apply this method to the areas with high and coarse sediment yield of the loess Plateau, and compartmentalize the river network into 4 grades and 37 regions. The application of this codification method in simulating the flow and sediment process proves that this method meets the disciplines of the natural rivers more, and can make the cluster scheduling more efficiently.

关 键 词：数字流域模型 河网编码方法 多沙粗沙区 二叉树 

分 类 号：O242[理学—计算数学]