ASSESSING THE ADEQUACY OF CATCHMENT STREAMFLOW YIELD ESTIMATES

被引：54

作者：

CHIEW, FHS

MCMAHON, TA

机构：

[1] Centre for Environment Applied Hydrology, Department of Civil and Environmental Engineering, University of Melbourne, Parkville, VIC

来源：

AUSTRALIAN JOURNAL OF SOIL RESEARCH | 1993年 / 31卷 / 05期

关键词：

STREAMFLOW; MODEL ADEQUACY; ADEQUACY OF FLOW ESTIMATES; SIMULATED FLOWS; COEFFICIENT OF EFFICIENCY; COEFFICIENT OF DETERMINATION;

D O I：

10.1071/SR9930665

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

Rainfall-runoff models are frequently used by hydrologists to estimate runoff from rainfall and climate data, with the model adequacy assessed by comparing the level of agreement between flows simulated by the model and the recorded flows. This paper describes simple methods (visual plots, statistical parameters and dimensionless coefficients) which are commonly used to compare estimated and recorded streamflow time series and discusses their advantages and limitations. Results of a survey conducted to ascertain the required quality of flow estimates before they are considered to be satisfactory, as well as to identify preferred methods used by hydrologists in Australia to determine the adequacy of streamflow estimates, are also discussed in this paper. Information from the survey is also used to suggest objective criteria based on dimensionless coefficients that can be used as guides in assessing the adequacy of flows estimated by rainfall-runoff models. In particular, the coefficient of efficiency is a very useful indicator in assessing model adequacy.

引用

页码：665 / 680

页数：16