Spectrem Air uses in-house data processing tools to provide the client with results in a timely manner.
Our routine data processing is done during data acquisition, resulting in a fast turn-around to clients and
preliminary maps made available after each sortie.

Standard processed deliverables include:

  • Late Time constant (Tau) and Conductivity Depth Images (CDls)
  • EM channel and Total magnetic intensity (TMI) grids
  • Anomaly selections (depth, dip, conductance)
  • Regolith thickness map
  • High resolution DTM
  • Radiometric grids (K, U, Th and Total Count)

Spectrem Air has a full suite of high-end data interpretation tools, from which several useful products can be derived:

Depth to conductors

Structural/lineament maps

3D conductivity maps

Additional deliverables would include a range of 1D, 2D and 3D conductivity
and magnetic inversion models. Through the interaction with internationally acclaimed research
consortia and individuals we are able to continually implement the latest interpretation methods.


Geological Mapping

The broadband nature of the SPECTREMPLUS system, including B-field STEP response processing, results in the most efficient mapping of deep-mineralized zones in conductive environments. In addition, SPECTREMPLUS system is an ideal tool for regional and detailed geological mapping given its large footprint.

Oil and Gas

The SPECTREMPLUS system’s capability for regional geological and structural mapping has been extended to the oil and gas sector. The multiple data sets collected by the SPECTREMPLUS system are critical in the exploration stage of oil and gas. When used in conjunction with the petro-physical logs, these datasets reduce exploration risk and result in detailed mapping and interpretation of the geology, stratigraphy and structures/fractures.

Hydrogeology and Geo-Engineering

The STEP response data is not spatially filtered (as is the norm with other systems) and the stable platform results in lower system noise levels at early time. Spectrem Air’s proprietary post processing techniques enable detailed resolution of the first 100m of the sub-surface. This makes the system ideal for shallow aquifer mapping and geo-engineering.


The SPECTREMPLUS system collects TDEM, magnetic and radiometric data simultaneously.