The role of different sources of uncertainty on the stochastic quantification of subsurface discharges in heterogeneous aquifers

M Schiavo - Journal of Hydrology, 2023 - Elsevier
The quantification of subsurface discharges may significantly be affected by multiple sources
of uncertainty, especially in highly heterogeneous aquifers. In this work, subsurface …

Issues and options in the delineation of well capture zones under uncertainty

EO Frind, JW Molson - Groundwater, 2018 - Wiley Online Library
The delineation of wellhead protection areas (WHPAs) under uncertainty is still a challenge
for heterogeneous porous media. For granular media, one option is to combine particle …

A kriging approach based on Aitchison geometry for the characterization of particle-size curves in heterogeneous aquifers

A Menafoglio, A Guadagnini, P Secchi - … Environmental Research and …, 2014 - Springer
We consider the problem of predicting the spatial field of particle-size curves (PSCs) from a
sample observed at a finite set of locations within an alluvial aquifer near the city of …

[HTML][HTML] Does streambed heterogeneity matter for hyporheic residence time distribution in sand-bedded streams?

D Tonina, FPJ de Barros, A Marzadri, A Bellin - Advances in water …, 2016 - Elsevier
Stream water residence times within streambed sediments are key values to quantify
hyporheic processes including sediment thermal regime, solute transient storage, dilution …

Imaging and characterization of facies heterogeneity in an alluvial aquifer using GPR full-waveform inversion and cone penetration tests

N Gueting, A Klotzsche, J van der Kruk… - Journal of …, 2015 - Elsevier
Spatially highly resolved mapping of aquifer heterogeneities is critical for the accurate
prediction of groundwater flow and contaminant transport. Here, we demonstrate the value …

Relative importance of geostatistical and transport models in describing heavily tailed breakthrough curves at the Lauswiesen site

M Riva, A Guadagnini, D Fernandez-Garcia… - Journal of contaminant …, 2008 - Elsevier
We analyze the relative importance of the selection of (1) the geostatistical model depicting
the structural heterogeneity of an aquifer, and (2) the basic processes to be included in the …

Uncertainty evaluation of mass discharge estimates from a contaminated site using a fully Bayesian framework

M Troldborg, W Nowak, N Tuxen… - Water Resources …, 2010 - Wiley Online Library
The estimation of mass discharges from contaminated sites is valuable when evaluating the
potential risk to down‐gradient receptors, when assessing the efficiency of a site …

On the use of mean groundwater age, life expectancy and capture probability for defining aquifer vulnerability and time-of-travel zones for source water protection

JW Molson, EO Frind - Journal of Contaminant Hydrology, 2012 - Elsevier
Protection and sustainability of water supply wells requires the assessment of vulnerability to
contamination and the delineation of well capture zones. Capture zones, or more generally …

A comparison of deterministic and stochastic approaches for regional scale inverse modeling on the Mar del Plata aquifer

M Pool, J Carrera, A Alcolea, EM Bocanegra - Journal of Hydrology, 2015 - Elsevier
Inversion of the spatial variability of transmissivity (T) in groundwater models can be handled
using either stochastic or deterministic (ie, geology-based zonation) approaches. While …

Minimum hydraulic resistance and least resistance path in heterogeneous porous media

CB Rizzo, FPJ de Barros - Water Resources Research, 2017 - Wiley Online Library
The transport dynamics of a solute plume in porous media are strictly related to the
hydrogeological properties. Despite progress in simulation techniques, quantifying transport …