| 基于动态数字地形模型的流域产汇流模拟方法 |
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| 引用本文： | 朱强,孙敏,陈秀万. 基于动态数字地形模型的流域产汇流模拟方法[J]. 北京大学学报(自然科学版), 2009, 45(5): 805-810 |
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| 作者姓名： | 朱强 孙敏 陈秀万 |
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| 作者单位： | 1. 北京大学遥感与地理信息系统研究所, 北京100871; 2.中国长江三峡工程开发总公司，宜昌443002; |
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| 基金项目： | 国家自然科学基金资助项目(40471104,40620130438) |
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| 摘 要： | 提出建立动态数字地形模型的概念。通过对各类地表相关信息的描述和关联, 建立其内在的计算规则。可以用于模拟水文过程中复杂、非线性的动态变化。在动态地形模型中, 以规则网格为计算单元, 通过计算规则描述了模拟过程的动态变化。以产汇流为例, 阐述了利用动态地形模型模拟的方法, 取得了初步效果, 为在该方向的深入探索提供了一条可参考的思路。
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| 关 键 词： | 动态数字地形模型 水文过程 产汇流 |
| 收稿时间： | 2008-12-15 |
A New Method for Rainfall Runoff Simulation Based on Dynamic Digital Terrain Model |
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| ZHU Qiang,SUN Min,CHEN Xiuwan. A New Method for Rainfall Runoff Simulation Based on Dynamic Digital Terrain Model[J]. Acta Scientiarum Naturalium Universitatis Pekinensis, 2009, 45(5): 805-810 |
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| Authors: | ZHU Qiang SUN Min CHEN Xiuwan |
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| Affiliation: | 1.Institute of Remote Sensing and Geographic Information System, Peking University, Beijing 100871; 2. China Three Gorges Project Corporation, Yichang 443002; |
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| Abstract: | The concept of dynamic digital terrain model(DDTM) is proposed.The main idea of DDTM is to describe the terrain surface processes by establishing the calculating rules among the related surface factors,which mainly influence the surface processes such as slope,precipitation,soil,etc.In DDTM,regular grid is taken as the unit to present natural processes,and the calculating rules are the functions of time,which decides the simulation process to be dynamic.Hydrological rainfall runoff process is used as a typi... |
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| Keywords: | dynamic digital terrain model hydrological process runoff generation |
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