Nisling River Aeromagnetic Survey: 38,000 km of High-Resolution Magnetic Data

High-sensitivity aeromagnetic data covering 37,999 line kilometres was collected over the Nisling River area in Yukon, Canada. The survey was conducted by Goldak Airborne Surveys for the Geological Survey of Canada between January 25 and March 26, 2011. Data was recorded digitally using cesium vapour magnetometers with a nominal terrain clearance of 100 meters and traverse line spacing of 400 meters.

Use Cases

• Map subsurface geological structures based on the high-resolution magnetic field measurements.
• Model mineral resource potential based on magnetic anomalies described in the survey.
• Calibrate regional geophysical models based on the 400-meter line spacing and 100-meter terrain clearance.
• Analyze flight path and instrument performance based on the described GPS and magnetometer systems.

Strengths

• 37,999 line kilometres of data provides substantial spatial coverage.
• High-resolution collection with 400-meter traverse line spacing and 100-meter nominal terrain clearance.
• Data was collected using three cesium vapour magnetometers and a differential GPS system for positioning.

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 bias inherent to the specific survey block in Yukon.

Provenance

Source

Geological Survey of Canada (GSC), Goldak Airborne Surveys

Collection Method

Aeromagnetic survey using aircraft equipped with cesium vapour magnetometers, GPS, and altimeters.

Time Range

January 25, 2011 to March 26, 2011

Freshness

Last updated 2026-05-20 15:36:55.589409; freshness should be verified.

Geography

Nisling River Area, Yukon, Canada (NTS 115 J/7, 8)