Hydraulic tomography offers improved imaging of heterogeneity in fractured rocks

WA Illman - Groundwater, 2014 - Wiley Online Library
Fractured rocks have presented formidable challenges for accurately predicting
groundwater flow and contaminant transport. This is mainly due to our difficulty in mapping …

Impact of climate change and water use policies on hydropower potential in the south-eastern Alpine region

B Majone, F Villa, R Deidda, A Bellin - Science of the Total Environment, 2016 - Elsevier
Climate change is expected to cause alterations of streamflow regimes in the Alpine region,
with possible relevant consequences for several socio-economic sectors including …

Parameter estimation by ensemble Kalman filters with transformed data: Approach and application to hydraulic tomography

A Schöniger, W Nowak… - Water Resources …, 2012 - Wiley Online Library
Ensemble Kalman filters (EnKFs) are a successful tool for estimating state variables in
atmospheric and oceanic sciences. Recent research has prepared the EnKF for parameter …

[图书][B] Flow through heterogeneous geologic media

TC Yeh, R Khaleel, KC Carroll - 2015 - books.google.com
This textbook integrates classic principles of flow through porous media with recently
developed stochastic analyses to provide new insight on subsurface hydrology. Importantly …

Three‐dimensional transient hydraulic tomography in a highly heterogeneous glaciofluvial aquifer‐aquitard system

SJ Berg, WA Illman - Water Resources Research, 2011 - Wiley Online Library
Hydraulic tomography has been proposed as an alternative site characterization method,
however, relatively few field scale studies have been attempted. In this paper, we …

Hydraulic conductivity imaging from 3‐D transient hydraulic tomography at several pumping/observation densities

M Cardiff, W Barrash… - Water Resources Research, 2013 - Wiley Online Library
3‐D Hydraulic tomography (3‐D HT) is a method for aquifer characterization whereby the 3‐
D spatial distribution of aquifer flow parameters (primarily hydraulic conductivity, K) is …

Comparison of aquifer characterization approaches through steady state groundwater model validation: A controlled laboratory sandbox study

WA Illman, J Zhu, AJ Craig, D Yin - Water Resources Research, 2010 - Wiley Online Library
Groundwater modeling has become a vital component to water supply and contaminant
transport investigations. An important component of groundwater modeling under steady …

Characterization of flow and transport in a fracture network at the EGS Collab field experiment through stochastic modeling of tracer recovery

H Wu, P Fu, JP Morris, ED Mattson, G Neupane… - Journal of …, 2021 - Elsevier
Energy extraction from subsurface reservoirs is important for addressing the increasing
energy demand and environmental concerns such as global warming. However, the …

3‐D transient hydraulic tomography in unconfined aquifers with fast drainage response

M Cardiff, W Barrash - Water Resources Research, 2011 - Wiley Online Library
We investigate, through numerical experiments, the viability of three‐dimensional transient
hydraulic tomography (3DTHT) for identifying the spatial distribution of groundwater flow …

Improved predictions of saturated and unsaturated zone drawdowns in a heterogeneous unconfined aquifer via transient hydraulic tomography: Laboratory sandbox …

SJ Berg, WA Illman - Journal of Hydrology, 2012 - Elsevier
Interpretation of pumping tests in unconfined aquifers has largely been based on analytical
solutions that disregard aquifer heterogeneity. In this study, we investigate whether the …