Magnetometry Survey Technology for Accurate Subsurface Detection

Magnetometry is a powerful geophysical method used to detect and map variations in the Earth's magnetic field caused by buried ferrous materials. At ERCS International, we deploy advanced drone mounted magnetometers (both flux gate and full atomic) to conduct fast, safe, and precise surveys. 

Our technology helps identify hidden underground features critical for archaeology, UXO clearance, utilities mapping, and environmental assessments. 

Unlike visual drone surveys or LiDAR, magnetometry focuses on detecting magnetic signatures rather than visual features only. It complements aerial surveys by providing critical underground data, enabling a comprehensive understanding of the site both above and below ground. When coupled with photogrammetry and LiDAR and identified targets can be cross-correlated between data sets.

Benefits of UAV Magnetometry Surveys

• Enhanced Safety: Conduct surveys remotely in hazardous or inaccessible areas, minimising risk to personnel.
• Rapid Data Collection: Cover large and complex sites faster than traditional ground methods.
• High Precision: Detect subtle magnetic anomalies to accurately locate buried objects and features.
• Non-Invasive: Identify subsurface hazards and structures without excavation or disturbance.
• Cost Efficiency: Reduce project costs by minimising manual searches and unnecessary digging.
• Comprehensive Site Insight: Complement aerial and surface surveys with detailed underground data for better decision making.

ERCS International combines drone technology with highly sensitive magnetometers to deliver accurate and reliable subsurface maps. Our experienced surveyors process and interpret the magnetic data, providing clients with actionable insights that support safe, efficient, and informed project planning.