Calibration of random fields by FFTMA-SA

D Lauzon, D Marcotte - Computers & geosciences, 2019 - Elsevier
… An interesting advantage of FFTMA-SA is the capability to perturb the field locally or globally…
field where FFTMA-SA is shown to better reproduce the spatial asymmetry than calibrated

Calibration of random fields by a sequential spectral turning bands method

D Lauzon, D Marcotte - Computers & geosciences, 2020 - Elsevier
field. S-STBM is shown to reproduce similarly or better the directional asymmetry than calibrated
realizations obtained by FFTMA-SAcalibrate a Gaussian field to tracer tests. Contrary to …

Statistical comparison of variogram-based inversion methods for conditioning to indirect data

D Lauzon, D Marcotte - Computers & Geosciences, 2022 - Elsevier
… methods use Gaussian random fields (GRFs… FFTMA-SA, and S-STBM) on five different
calibration problems. Two problems compare the simulated distributions obtained after calibration

[HTML][HTML] Simulation of conditional non-Gaussian random fields with directional asymmetry

S Hörning, A Bárdossy - Spatial Statistics, 2025 - Elsevier
… , indicate that the corresponding random field has a non-Gaussian … random fields with any
of the asymmetries or with their combination is presented. Synthetically simulated flow fields

Joint hydrofacies-hydraulic conductivity modeling based on a constructive spectral algorithm constrained by transient head data

D Lauzon, D Marcotte - Hydrogeology Journal, 2023 - Springer
calibrate hydrofacies and hydraulic conductivity to transient pressure heads. The method
iteratively constructs Gaussian random fields … on calibrating the underlying Gaussian fields that …

[图书][B] Développement d'Algorithmes pour le Calage de Modèles Géologiques par Méthodes Géostatistiques Discrètes et Spectrales

D Lauzon - 2022 - search.proquest.com
… proposed in this thesis (namely FFTMA-SA and S-STBM) … S-STBM and FFTMA-SA obtained
good calibration results for … thèse intitulé : « Calibration of random fields by FFTMA-SA ». L’…

Conditional simulation of surface rainfall fields using modified phase annealing

J Yan, A Bárdossy, S Hörning… - Hydrology and Earth …, 2020 - hess.copernicus.org
random field with the prescribed spatial covariance, abbreviated as starter. Various methods
could be used to generate such a random field… of PA is a Gaussian random field Z K with the …

The sequential spectral turning band simulator as an alternative to Gibbs sampler in large truncated-or pluri-Gaussian simulations

D Lauzon, D Marcotte - Stochastic environmental research and risk …, 2020 - Springer
… The Sequential Spectral Turning Bands Method (S-STBM) builds Gaussian random fields
(GRF) calibrated to desired response functions. An interesting application of S-STBM concerns …

Estimating porosity distribution of a heterogeneous alluvial aquifer by GPU-accelerated 3D conditional stochastic inversion of common-offset GPR reflection data

Z Xu, P Zhu, Y Liu, S Guo, Z Liao - Journal of Hydrology, 2023 - Elsevier
… If suitable borehole measurements, such as neutron-neutron porosity logging, are available
for calibration along the GPR profile, one promising alternative for the recovery of detailed …

Three-dimensional non-multi-gaussian simulation of hydraulic conductivity including multiple types of information

B Xiao - 2022 - tobias-lib.ub.uni-tuebingen.de
… Lauzon and Marcotte (2019) include the asymmetry in the Fast Fourier Transform Moving
Average-simulated annealing (FFTMA-SA) for the calibration of a random field. The theoretical …