First Vertical Derivative of the Magnetic Field, Kluane Area Yukon

A helicopter-borne aeromagnetic survey was flown at a nominal terrain clearance of 100 meters using two Astar 350B aircraft. Fugro Airborne Surveys collected the data between February 4 and March 15, 2010, using split-beam cesium vapour magnetometers with a sensitivity of 0.005 nT. The map presents the first vertical derivative of the total magnetic field, processed from data recorded on traverse lines spaced 400 meters apart.

Use Cases

• Geological mapping based on magnetic field gradients.
• Mineral exploration targeting based on processed aeromagnetic data.
• Geophysical research based on high-resolution helicopter-acquired magnetic measurements.
• Survey methodology validation based on described flight path recovery using GPS and video.

Strengths

• Survey used high-sensitivity magnetometers (0.005 nT).
• Data was collected at a low nominal terrain clearance of 100 meters.
• Flight path was recovered using post-flight differential GPS corrections and video inspection.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic/temporal bias inherent to open_canada.

Provenance

Source

Government of Yukon

Collection Method

Helicopter-borne aeromagnetic survey using split-beam cesium vapour magnetometers.

Time Range

February 4 to March 15, 2010

Freshness

Last updated 2026-05-20 15:33:51.615969; freshness should be verified.

Geography

Kluane area, NTS 115 H/4 and parts of 115 H/3 and 115 G/1, Yukon, Canada