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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。
Hydrology is a complex system composed of various levels of subsystems. As a spatial data and model for describing hydrological characteristics of various scales, there are also scale features. The relationship between hydrological scales and hydrological models is of great importance in understanding and solving hydrological scales Meaning. This paper analyzes the interrelationship between hydrological scale and hydrological model in terms of principle, structure, complexity and data. The concept and necessity of hydrological multi-scale simulation are put forward, and the problems such as the method and conversion of hydrological multi-scale simulation Have elaborated. The framework for studying the hydrological scaling problem from the perspective of system and multi-scale hydrological modeling is constructed. It provides an effective scientific research idea for further understanding of the changing rules and processes of hydrological scales on different temporal and spatial scales.