Issues in characterizing heterogeneity and connectivity in non-multiGaussian media

Détails

ID Serval
serval:BIB_D6DE3587B31E
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Issues in characterizing heterogeneity and connectivity in non-multiGaussian media
Périodique
ADVANCES IN WATER RESOURCES
Auteur⸱e⸱s
Kerrou J., Renard P., Hendricks Franssen H.-J., Lunati I.
ISSN
0309-1708
Statut éditorial
Publié
Date de publication
2008
Volume
31
Numéro
1
Pages
147-159
Langue
anglais
Notes
ISI:000253019900012
Résumé
The performances of kriging, stochastic simulations and sequential
self-calibration inversion are assessed when characterizing a
non-multiGaussian synthetic 2D braided channel aquifer. The comparison
is based on a series of criteria such as the reproduction of the
original reference transmissivity or head fields, but also in terms of
accuracy of flow and transport (capture zone) forecasts when the flow
conditions are modified. We observe that the errors remain large even
for a dense data network. In addition some unexpected behaviours are
observed when large transmissivity datasets are used. In particular, we
observe an increase of the bias with the number of transmissivity data
and an increasing uncertainty with the number of head data. This is
interpreted as a consequence of the use of an inadequate multiGaussian
stochastic model that is not able to reproduce the connectivity of the
original field. (c) 2007 Elsevier Ltd. All rights reserved.
Web of science
Création de la notice
20/02/2010 12:33
Dernière modification de la notice
20/08/2019 15:56
Données d'usage