水文尺度与水文模拟关系研究

Relation between Hydrological Scale and Hydrology Simulation

水文系统是由各种不同级别子系统组成的复杂系统,作为描述各种尺度水文特征的空间数据与模型,也有尺度特征,探讨水文尺度与水文模型的关系,对认识与解决水文尺度问题有重要的意义。从水文尺度与水文模型的原理、结构、复杂度、资料的角度分析二者之间的相互联系;提出了水文多尺度模拟的概念和必要性,并对水文多尺度模拟的方法与转换等问题进行了阐述。构建了从系统和多尺度水文模拟角度研究水文尺度问题的框架,对于深入了解水文尺度在不同时空尺度上的变化规律和过程,为科研和解决实践问题提供了一个有效的科研思路。

Hydrological system is a complicated system composed of sub-systems at different scales, so the descriptions of hydrological features at various scales, i. e. , the spatial data and the models also have scale characters. The relationship between the hydrological scale and hydrology model is discussed, which has significance for recognizing and resolving the hydrological scale problems. The paper studies the relations between hydrological scale and hydrology model＇s theory, structure, complexity and data acquisition, and presents the conception of hydrology multi-scale simulation and its necessity. Further more, the paper puts forward the methods and transformation of hydrological muki-scale simulation, founds hydrological multi-scale simulation system from the point of view of research on the problem of hydrological scale problem in order to understand the transformation rule and the process of hydrological scale, and it also gives an effective new idea for researching and resolving actual problems.