EM-Q

The EM-Q application was developed in collaboration with Fugro Airborne Surveys (now the Airborne Surveys Division of CGG). It provides a simple and quick way of using moments of the impulse response to interpret a transient electromagnetic (TEM) anomaly. Two types of model are available:

• A simple sphere.
• A "dipping" sphere, where the induced current is constrained to flow in a plane.

The results can be used either directly to give estimates of position and physical properties, or as a starting point for more detailed interpretation.