Name
Application of Ground-Based Time-Domain Electromagnetics for Regional Aquifer Characterization in Southern Alberta
Date & Time
Monday, May 25, 2026, 11:30 AM - 11:45 AM
Description
Understanding groundwater resources across southern Alberta requires a comprehensive view of subsurface geological architecture, especially within regions characterized by complex glacial depositional environments. A ground-based time-domain electromagnetic (TEM) program was carried out by WSP Canada across southern Alberta in support of a groundwater evaluation project lead by the Alberta Geological Survey (AGS). This work was designed to strengthen the foundation for aquifer mapping, refine interpretations of buried valley systems, and enhance understanding of groundwater–surface water connections.
The geophysical program used a towed TEM system capable of continuous acquisition primarily along roads and canals. This approach enabled collection of laterally dense, spatially extensive resistivity information across a wide range of geological settings. Despite winter conditions, challenging access constraints, and the presence of existing infrastructure, the field program produced approximately 2300km of TEM data. The data reveal a variety of geological characteristics: near-surface coarse-grained deposits, vertically stacked sequences of glacial sediments, and distinct buried channel features that vary in continuity, geometry, and resistivity signature.
This unique dataset significantly advances the understanding of subsurface conditions in southern Alberta. The ground TEM results illuminate the distribution of coarse-grained channel fills, the configuration of buried valleys, and the textural contrasts within glacial sediments. The results reinforce the value of integrating geophysical datasets, especially where logistical access, landowner constraints, or variations in terrain limit acquisition density.
The project demonstrates the effectiveness of modern towed TEM methods for resolving shallow and intermediate-depth geological structures at a scale relevant to groundwater exploration and management in southern Alberta.
Location Name
DSU 224
Full Address
Dalhousie University
Halifax NS
Canada
Halifax NS
Canada
Session Type
Oral Presentation
Abstract ID
427
Speaker Organization
WSP Canada Inc.
Session Name
IAH-13
Co-authors
Ashlee Fudge, Justin Jarratt, Jason Hendrick, Greg Hartman, Dan Palombi
Presenting Author
Patrick Mah