地理研究 ›› 1989, Vol. 8 ›› Issue (1): 9-19.doi: 10.11821/yj1989010002

• 论文 • 上一篇    下一篇

离散线性水文系统模型及其参数估算*

王广德   

  1. 中国科学院、国家计划委员会地理研究所
  • 收稿日期:1987-04-16 修回日期:1988-04-11 出版日期:1989-03-15 发布日期:1989-03-15
  • 基金资助:
    *中国科学院地理研究所所长基金

DISCRETE LINEAR HYDROLOGIC SYSTEMS MODEL AND ESTIMATION OF IT’S PARAMETERS

Wang Guangte   

  1. Institute of Geography, Chinese Academy of Sciences and State Planning Commission of The People's Republic of China
  • Received:1987-04-16 Revised:1988-04-11 Online:1989-03-15 Published:1989-03-15

摘要: 本文介绍了连续和离散线性水文系统模型以及它们之间的对应关系,论述了离散线性水文系统模型的稳定性,其参数之间的对应关系,着重说明了现有常用几种水文模型均是离散水文系统模型的特例,提出了离散线性水文系统模型参数确定的四种方法,并给出了算例。

关键词: 暴雨径流, 线性水文系统模型, 目标函数, 转移函数

Abstract: Significant advances have been made in adopting the linear systems theory in modeling the rainfall-runoff process since Nash proposed the model with equal reservoirs in series in 1957. Such hydrologic models, known as input-output models, are attempted to establish a causal linkage between two or more observed phenomena without detailed description of the physical process under investigation.Continuous models mayebe handled elegantly with operational mathematics. However,hydrologic data are almost always discrete.Therefore, discrete models are of general interest in practice.The purpose of this paper is to present a discretely coincident form of general linear hybrologic system models, to describe some important properties of discrete, linear, hydrologic system model and to suggest different methods for estimating paramters with numerical examples.

Key words: Rainfall-runoff, Linear hrdrologic systems model, Objective function, Transfer function