The use of geophysical imaging for improved monitoring and management of saltwater intrusion

Saltwater intrusion poses a high level of risk to fresh water resources in coastal communities throughout Canada and the world. Saltwater intrusion is driven by withdrawal of groundwater from aquifers, and by rising sea level. The goal of this work is to demonstrate the usefulness of geophysical methods (electrical resistivity tomography and distributed temperature sensing) for improved monitoring and management of saltwater intrusion at the basin scale. These methods, which are similar to those used in medical tomography, allow for mapping the distribution of saltwater intrusion.