Snowmobile-mode Cesium Magnetometer
Purpose: Snowmobile-mode Cesium Magnetometer surveys are tailored for high-resolution magnetic data collection in challenging terrains, where traditional methods may fall short. This mode allows for efficient, ground-based surveys across rugged and cold environments, ensuring accurate subsurface mapping without the need for pre-established grids.
Applications:
Challenging Terrain and Arctic Conditions: Snowmobile-mode excels in rough or icy terrains, including boulder fields and extreme cold, where its rugged setup enables data collection under difficult environmental conditions.
Precise Magnetic Surveys: The high sensitivity and continuous GPS-linked data provide detailed insights into magnetic variations, suitable for mineral exploration and geological mapping.
Technical Process: Survey navigation is pre-programmed with track-lines, eliminating the need for a physical grid. Equipped with a ruggedized navigation computer, readings are either time-triggered or positioned at 3-meter intervals, with the GPS antenna at the front of the sleigh and the magnetometer at the back. Operating speeds range from 2 to 5 meters per second, and post-processing software corrects for layback and latency. Additionally, gradient magnetic data can be collected with multiple sensors, enhancing resolution.
Base Station Support: To ensure data precision, base station magnetometers record readings every 0.5 to 1 second, with at least two stations operating for redundancy. These stations are strategically “leap-frogged” to remain close to the survey area, crucial for maintaining precision in remote arctic regions.
Key Uses: Snowmobile-mode magnetometer surveys are ideal for high-quality ground-based magnetic data collection in rugged terrains and extreme climates, offering greater accuracy than airborne alternatives. This mode is indispensable for mineral exploration and detailed geological surveys in remote environments.