Shaded Magnetic First Vertical Derivative Map of Yukon/NWT, Surveyed 2003

Fugro Airborne Surveys compiled this aeromagnetic map using a Cessna Caravan aircraft equipped with a 0.005 nT sensitivity cesium vapour magnetometer. Survey operations were conducted from March 7 to May 1, 2003, with a nominal traverse line spacing of 800 m and terrain clearance of 200 m. The levelled total field values were interpolated to a 200 m grid, and the International Geomagnetic Reference Field has not been removed.

Use Cases

• Map subsurface geological structures based on magnetic gradient data.
• Identify potential mineral deposits based on magnetic anomaly patterns.
• Integrate magnetic data with other geophysical surveys for regional analysis.
• Validate or calibrate other magnetic survey methods based on the described high-sensitivity instrumentation.

Strengths

• Survey conducted with a high-sensitivity 0.005 nT magnetometer.
• Flight path recovered using differential GPS and a video camera, suggesting precise location data.
• Data levelled through a network analysis of control and traverse line intersections.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• The International Geomagnetic Reference Field has not been removed, which may affect interpretation.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Government of Yukon

Collection Method

Aeromagnetic survey using a fixed-wing aircraft.

Time Range

Survey conducted March 7 to May 1, 2003.

Freshness

Last updated 2026-04-17 15:39:59.854141; freshness should be verified.

Geography

Yukon Territory and Northwest Territories; NTS 106K/NW-NE.