Total Magnetic Field from the Little Nahanni Aeromagnetic Survey, Yukon

Aeromagnetic survey data collected over the northern half of NTS 105-I in Yukon, Canada. The data were acquired by EON Geosciences Inc. between April 12 and June 2, 2010, using a cesium vapour magnetometer flown at a nominal terrain clearance of 250 meters. The levelled magnetic values were interpolated to a 200-meter grid, and the International Geomagnetic Reference Field was not removed.

Use Cases

• Map regional geological structures based on magnetic anomalies.
• Support mineral exploration targeting based on magnetic signatures.
• Conduct geophysical research using high-sensitivity (0.005 nT) magnetic field measurements.
• Integrate with other geospatial datasets for geological modeling of the area.

Strengths

• Data collected with a high-sensitivity instrument (0.005 nT).
• Flight lines were computer-analysed and levelled to minimize intersection errors.
• Survey flown at a low nominal terrain clearance of 250 meters for detailed resolution.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The International Geomagnetic Reference Field (IGRF) was not removed from the magnetic field values.

Provenance

Source

Government of Yukon

Collection Method

Data acquired via airborne survey using a split-beam cesium vapour magnetometer mounted on a Piper Navajo aircraft.

Time Range

April 12, 2010 to June 2, 2010

Freshness

Last updated 2026-05-20 16:02:25.174784; freshness should be verified.

Geography

Little Nahanni area, part of NTS 105-I (north half), Yukon, Canada