Journal
COMPUTERS & FLUIDS
Volume 115, Issue -, Pages 201-210Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.compfluid.2015.03.025
Keywords
Data assimilation; Optimal control; Ensemble methods; Shallow water model; Depth sensor
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Ensemble based optimal control schemes combine the components of ensemble Kalman filters and variational data assimilation (4DVar). They are trendy because they are easier to implement than 4DVar. In this paper, we evaluate a modified version of an ensemble based optimal control strategy for image data assimilation. This modified method is assessed with a shallow water model combined with synthetic data and original incomplete experimental depth sensor observations. This paper shows that the modified ensemble technique is better in quality and can reduce the computational cost. (C) 2015 Elsevier Ltd. All rights reserved.
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