Nisling River Aeromagnetic Survey: First Vertical Derivative, Yukon 2011

37,999 line kilometres of high-resolution magnetic data were collected via airborne survey between January 25th and March 26th, 2011. The survey was conducted by Goldak Airborne Surveys for the Geological Survey of Canada over the Nisling River area. Traverse lines were flown at 400 m spacing with a nominal terrain clearance of 100 m above ground.

Use Cases

• Map subsurface geological structures based on magnetic field variations.
• Identify potential mineral deposits based on magnetic anomaly patterns.
• Integrate magnetic data with other geophysical surveys for regional geological interpretation.
• Calibrate and validate ground-based magnetometer readings based on the high-sensitivity airborne data.

Strengths

• High-resolution data collection over 37,999 line kilometres.
• Survey conducted with three cesium vapour magnetometers and differential GPS for precise positioning.
• Specific flight parameters provided: 400 m line spacing, 2400 m control line separation, and 100 m nominal terrain clearance.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Data freshness should be verified; the last metadata update is dated 2026-05-20.

Provenance

Source

Geological Survey of Canada, Government of Yukon

Collection Method

High-sensitivity aeromagnetic survey conducted by Goldak Airborne Surveys using aircraft equipped with magnetometers, GPS, and altimeters.

Time Range

January 25th to March 26th, 2011

Freshness

Last updated 2026-05-20 16:14:09.307681; freshness should be verified.

Geography

Nisling River Area, Yukon, Canada (NTS 115 G/16 and 115 H/13)