Geological Survey Ireland Programmes & Projects Tellus Tellus – Activities Airborne Survey Airborne Survey technical specifications

Airborne Survey technical specifications

The airborne low-level geophysical survey, comprises of measurements of magnetic field, radiometric and electrical conductivity of the Earth’s near surface. The geophysical data is a valuable tool for improving geological maps, assessing peat resources, understanding environmental radioactivity and promoting mineral exploration as well as other areas of research and planning.

Airborne Geophysics

1. Production flying
Magnetic, electromagnetic and gamma-ray spectrometry data are collected by the aircraft as it flies 60 m above the ground
 
2. Magnetics
The magnetic data is collected from the tail stinger  
  
3. Gamma-ray spectrometry
The gamma ray detector sits in the back of the aircraft  
 
4. Electromagnetic
The electromagnetic signal is transmitted from the right hand side pod and signal received in the left  
5. Interpretation
Following data quality checking, the data is made into maps and geological interpretation undertaken