A Study on Automatic Calibration of the Parameters in Tank Model

• Main Authors: Yeh-Jing Wang, 王宇靖
• Other Authors: Rong-Song Chen
• Format: Others
• Language: zh-TW
• Published: 2002
• Online Access: http://ndltd.ncl.edu.tw/handle/10751950497691783610

碩士 === 國立中興大學 === 土木工程學系 === 90 === It has been the way to obtain the relationship between rainfall and runoff by giving the rainfall data through a rainfall-runoff model. However, success of the simulation is involved in the calibration of model parameters. Tank Model is a simple-structured model to describe the characteristics of runoff .and its physical meaning is very clear, easy to use and effective. So that Tank Model is widely applied on the simulation of rainfall-runoff events. However, Tank Model contains 16 parameters, and that increases the difficulty of calibration. Two calibration methods are compared in this paper, one is Powell’s conjugate direction method, and another is SCE-UA method. It is found that the SCE has the better ability to search for the16 parameters of Tank Model.