Publication Details

Reference Category Journals
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Title (Primary) Operational aspects of asynchronous filtering for flood forecasting
Author Rakovec, O.; Weerts, A.H.; Sumihar, J.; Uijlenhoet, R.;
Journal Hydrology and Earth System Sciences
Year 2015
Department CHS;
Volume 19
Issue 6
Language englisch;
POF III (all) T34;
UFZ wide themes RU5;
Abstract 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.
ID 16279
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=16279
Rakovec, O., Weerts, A.H., Sumihar, J., Uijlenhoet, R. (2015):
Operational aspects of asynchronous filtering for flood forecasting
Hydrol. Earth Syst. Sci. 19 (6), 2911 - 2924