Dataset Information

Fiber optics passive monitoring of groundwater temperature reveals three-dimensional structures in heterogeneous aquifers.

ABSTRACT: Alluvial aquifers often exhibit highly conductive embedded formations that can act as preferential pathways for the transport of solutes. In this context, a detailed subsurface characterization becomes crucial for an effective monitoring of groundwater quality and early detection of contaminants. However, small-scale heterogeneities are seldom detected by traditional nondestructive investigations. Heat propagation in porous media can be a relatively inexpensive tracer for groundwater flow, potentially offering valuable information in various applications. In this study, we applied passive Fiber Optics Distributed Temperature Sensing (FO-DTS) to a group of observation wells in a highly heterogeneous phreatic aquifer to uncover structures with different hydraulic conductivity, relying on their response to temperature fluctuations triggered by natural and anthropogenic forcings. A comprehensive data analysis approach, combining statistical methods and physics-based numerical modeling, allowed for a three-dimensional characterization of the subsurface at the experimental site with unprecedentedly high resolution.

SUBMITTER: Furlanetto D

PROVIDER: S-EPMC11006848 | biostudies-literature | 2024 Apr

REPOSITORIES: biostudies-literature

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Fiber optics passive monitoring of groundwater temperature reveals three-dimensional structures in heterogeneous aquifers.

Furlanetto Davide D Camporese Matteo M Schenato Luca L Costa Leonardo L Salandin Paolo P

Scientific reports 20240410 1

Alluvial aquifers often exhibit highly conductive embedded formations that can act as preferential pathways for the transport of solutes. In this context, a detailed subsurface characterization becomes crucial for an effective monitoring of groundwater quality and early detection of contaminants. However, small-scale heterogeneities are seldom detected by traditional nondestructive investigations. Heat propagation in porous media can be a relatively inexpensive tracer for groundwater flow, poten ...[more]

PMID: 38600107

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Dataset Information

Fiber optics passive monitoring of groundwater temperature reveals three-dimensional structures in heterogeneous aquifers.

Publications

Fiber optics passive monitoring of groundwater temperature reveals three-dimensional structures in heterogeneous aquifers.

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