Airborne Electromagnetic Surveys (AEM)

Airborne Electromagnetic Surveys (AEM) have been conducted in several areas in the state. Geophysical data is collected by a helicopter that flies in a grid pattern. The data identifies the deepest and most transmissive part of the aquifer and determines the geometry of the glacial environment – including depth and extent of the aquifers.

These surveys provide high resolution maps of aquifers that help water managers identify and optimize local sources of available groundwater.

Project 1 – Spiritwood - Jamestown Report (PDF)

Project 2 – Warwick Report (PDF)

Project 3 (Geotech) – Wahpeton Buried Valley Report (PDF)

Project 3 (Aqua Geo Framworks) – Wahpeton Buried Valley Report (PDF)

Projects 4 & 5 – (Geotech) - Spiritwood South & Tolna Report (PDF)

Projects 4 & 5 – (Aqua Geo Framworks) - Spiritwood South & Tolna Report (PDF)

Projects 6 & 7 – (Aqua Geo Framworks) - Towner & Griggs Report (PDF)

Projects 6 & 7 (Appendix 1) – Towner & Griggs Report (PDF)

Projects 6 & 7 (Appendix 2) – Towner & Griggs Report (PDF)

Project 8 - (Aqua Geo Frameworks) Report, Area 1 - Central Dakota, Area 2 - Sheyenne Delta, Milnor Channel, Hankinson & Brightwood (PDF)

The AEM survey results can be viewed and downloaded from DWR’s MapServices.