[HTML][HTML] Advancing measurements and representations of subsurface heterogeneity and dynamic processes: towards 4D hydrogeology

T Hermans, P Goderniaux, D Jougnot… - Hydrology and Earth …, 2023‏ - hess.copernicus.org
Essentially all hydrogeological processes are strongly influenced by the subsurface spatial
heterogeneity and the temporal variation of environmental conditions, hydraulic properties …

Heat dissipation test with fiber‐optic distributed temperature sensing to estimate groundwater flux

L Del Val, J Carrera, M Pool, L Martínez… - Water Resources …, 2021‏ - Wiley Online Library
We measure groundwater flux and thermal parameters around a borehole performing a heat
dissipation test by heating the armor of a single fiber‐optic cable and interpreting the …

Heat as a tracer for understanding transport processes in fractured media: Theory and field assessment from multiscale thermal push‐pull tracer tests

MV Klepikova, T Le Borgne, O Bour… - Water Resources …, 2016‏ - Wiley Online Library
The characterization and modeling of heat transfer in fractured media is particularly
challenging as the existence of fractures at multiple scales induces highly localized flow …

Monitoring groundwater fluxes variations through active-DTS measurements

N Simon, O Bour, N Lavenant, G Porel, B Nauleau… - Journal of …, 2023‏ - Elsevier
Considering the need of characterizing temporal dynamic of groundwater and the lack of
available methods, we investigate the feasibility of active-Distributed Temperature Sensing …

[HTML][HTML] An innovative tool for groundwater velocity measurement compared with other tools in laboratory and field tests

E Essouayed, MD Annable, M Momtbrun, O Atteia - Journal of Hydrology X, 2019‏ - Elsevier
An innovative solution for groundwater velocity measurement in wells, the Direct Velocity
Tool (DVT), is developed and tested. The DVT allows measurement of Darcy flux at …

Measuring fracture flow changes in a bedrock aquifer due to open hole and pumped conditions using active distributed temperature sensing

JD Munn, CH Maldaner, TI Coleman… - Water Resources …, 2020‏ - Wiley Online Library
Efficiently measuring groundwater flow in bedrock aquifers is inherently challenging due to
the irregular distribution and fine scale of fractures. Recent advances in Active Distributed …

Monitoring of the thermal plume around a thermally activated borehole heat exchanger and characterization of the ground hydro-geothermal parameters

V Gigot, B Francois, M Huysmans, P Gerard - Renewable Energy, 2023‏ - Elsevier
A methodology to characterize the main hydro-geothermal parameters of saturated and
unsaturated ground layers, such as intrinsic thermal conductivity, volumetric heat capacity …

Direct evidence of meltwater flow within a firn aquifer in southeast Greenland

O Miller, DK Solomon, C Miège… - Geophysical …, 2018‏ - Wiley Online Library
Within the lower percolation zone of the southeastern Greenland ice sheet, meltwater has
accumulated within the firn pore space, forming extensive firn aquifers. Previously, it was …

Monitoring transient groundwater fluxes using the finite volume point dilution method

P Jamin, S Brouyère - Journal of contaminant hydrology, 2018‏ - Elsevier
Classic estimates of groundwater fluxes are usually based on the application of Darcy's law,
which can lead to large imprecisions in transient groundwater flow cases. There is a need …

Improving estimates of groundwater velocity in a fractured rock borehole using hydraulic and tracer dilution methods

CH Maldaner, PM Quinn, JA Cherry… - Journal of Contaminant …, 2018‏ - Elsevier
A straddle-packer system for use in boreholes in fractured rock was modified to investigate
the average linear groundwater velocity (v¯ f) in fractures under ambient flow conditions …