AERIAL DRONE RADIOMETRIC SYSTEM

UAV-based radiometric surveys offer a high-resolution, efficient, and low-impact method for mapping natural gamma radiation (potassium, uranium, and thorium) across varied terrain. Using lightweight, UAV-optimized gamma spectrometers flown at low altitudes and slow speeds, we collect detailed data with centimetre-accurate positioning via RTK/PPK GNSS. Fully autonomous and terrain-following, our systems safely access remote or rugged areas with minimal environmental disturbance and no need for ground crews in hazardous zones. Radiometric data is calibrated to international standards and can be fully integrated with magnetic or multisensor survey platforms, providing a powerful toolset for mineral exploration, geological mapping, and environmental assessment.

Features:

FIXED-WING VS DRONE DATA COLLECTION

Fixed-Wing

UAV

Traditional method for collecting data for mineral and resource exploration

Lightweight and compact platform with newly developed sensors that produce data of a far superior quality to fixed-wing

Flying Height

General standard is 80m above ground

UAV surveys can be flown at 25m

Speed

Approximately 220 km/hr

Approximately 30 km/hr

Terrain-following

Controlled with DGPS but limitations exist due to the climb rate of aircraft making difficult terrain survey inaccurate and very unsafe

Accurate terrain-following due to software control and vertical climbing ability allowing UAV’s to survey mountainous areas and valleys accurately

Distance from Base

Permanent base required with landing space, fuel etc. flying base to survey area is not regarded as production

Flexible base of operations located next to daily survey area

Cost of Service

Larger crew, fuel and fixed base of operations results in a more costly service

Small crew, no fuel cost and flexible base of operations results in a cost-effective service

Safety

Aircraft may require between 1 – 3 personnel on-board and the low flying height significantly increases the risk of aircraft accidents

The platform is unmanned therefore any accident results in zero loss of life

Data Quality

Magnetometer standard sampling rate of 10 Hz, considering speed and flying height, results in 1.1 samples every 8 m

Magnetometer sampling rate of a minimum of 250 Hz, considering speed and flying height, results in 250 samples every 8 m

All aerial services and compliance depicted or advertised are provided by DC Geomatics Drone Services, a registered ROC holder, as part of a formal Aerial Services Agreement.