A note on preconditioning weighted linear least-squares with consequences for weakly constrained variational data assimilation

Serge Gratton
, Gürol Selime
, Ehouarn Simon
, Philippe Toint

Namur Institute for Complex Systems

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7 Citations
4 Article
2 Working paper

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2021
A data assimilation algorithm for predicting rain
Janjić, T., Ruckstuhl, Y. & Toint, P. L., Apr 2021, In: Quarterly Journal of the Royal Meteorological Society. 147, 736, p. 1949-1963 15 p.
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Open Access
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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2013
Conjugate gradients versus multigrid solvers for diffusion-based correlation models in data assimilation
Gratton, S., Toint, P. L. & Tshimanga, J., 2013, In: Quarterly Journal of the Royal Meteorological Society. 139, 675, p. 1481-1487 7 p.
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Open Access
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2011
Range-space variants and inexact matrix-vector products in Krylov solvers for linear systems arising from inverse problems
Gratton, S., Toint, P. & Tshimanga Ilunga, J., 1 Jan 2011, In: SIAM Journal on Matrix Analysis and Applications. 32, 3, p. 969-986 18 p.
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