Earth magnetic field gradient tensor

On the basis of the Maxwell equations electrodynamics; the gradient tensor is described by five independent components, three non-diagonal elements and two diagonal elements of the tensor matrix.

The availability of gradient tensor data can be seen as a quantum leap in airborne geomagnetics as it provides plenty of completely new information:

- continuous mapping of the magnetisation direction of the rocks,
- continuous mapping of the remanence indicators,
- Mapping of the magnetic susceptibility,
- continuous three-dimensional determination of rock properties,
- Recording of geologic peripheral zones,
- Improvement of the resolution of the total field measurements using field gradients contained in the tensor data.

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