Journal of Environmental Science International (한국환경과학회지)
- Volume 3 Issue 4
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- Pages.349-356
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- 1994
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- 1225-4517(pISSN)
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- 2287-3503(eISSN)
A Linear Reservoir Model with Kslman Filter in River Basin
Kalman Filter 이론에 의한 하천유역의 선형저수지 모델
Abstract
The purpose of this study is to develop a linear reservoir model with Kalman filter using Kalman filter theory which removes a physical uncertainty of :ainfall-runoff process. A linear reservoir model, which is the basic model of Kalman filter, is used to calculate runoff from rainfall in river basin. A linear reservoir model with Kalman filter is composed of a state-space model using a system model and a observation model. The state-vector of system model in linear. The average value of the ordinate of IUH for a linear reservoir model with Kalman filter is used as the initial value of state-vector. A .linear reservoir model with Kalman filter shows better results than those by linear reserevoir model, and decreases a physical uncertainty of rainfall-runoff process in river basin.
Keywords
- linear reservoir model;
- Kalman filter;
- state-space model;
- system model;
- observation model;
- IUH(Instantaneous Unit Hydrograph);
- state-vector;
- physical uncertainty;
- linear reservoir model with Kalman filter