Conjugate gradients versus multigrid solvers for diffusion-based correlation models in data assimilation

S. Gratton, P. L. Toint, J. Tshimanga

Namur Institute for Complex Systems

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7 Citations
2 Article
1 Working paper

3 results

2018
A note on preconditioning weighted linear least-squares with consequences for weakly constrained variational data assimilation
Gratton, S., Selime, G., Simon, E. & Toint, P., Apr 2018, In: Quarterly Journal of the Royal Meteorological Society. 144, 712, p. 934-940 7 p.
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2017
On the use of the saddle formulation in weakly-constrained 4D-VAR data assimilation
Gratton, S., Gürol, S., Simon, E. & Toint, P., 20 Sept 2017, (Submitted) Arxiv.
Research output: Working paper

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2015
Observations Thinning In Data Assimilation Computations
Gratton, S., Rincon-Camacho, M., Simon, E. & Toint, P., 2015, In: EURO Journal on Computational Optimization. 3, p. 31-51
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