期刊
HYDROLOGY AND EARTH SYSTEM SCIENCES
卷 19, 期 6, 页码 2911-2924出版社
COPERNICUS GESELLSCHAFT MBH
DOI: 10.5194/hess-19-2911-2015
关键词
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资金
- Flood Control program
This study investigates the suitability of the asynchronous ensemble Kalman filter (AEnKF) and a partitioned updating scheme for hydrological forecasting. The AEnKF requires forward integration of the model for the analysis and enables assimilation of current and past observations simultaneously at a single analysis step. The results of discharge assimilation into a grid-based hydrological model (using a soil moisture error model) for the Upper Ourthe catchment in the Belgian Ardennes show that including past predictions and observations in the data assimilation method improves the model forecasts. Additionally, we show that elimination of the strongly non-linear relation between the soil moisture storage and assimilated discharge observations from the model update becomes beneficial for improved operational forecasting, which is evaluated using several validation measures.
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