Magnetometry

Measures the ambient magnetic field strength. Effective for detecting features with magnetic contrast from the surrounding soil, including burnt features, pits and ditches.
Aerial view of a field survey

Magnetometry measures the ambient magnetic field strength. One of the primary methods of archaeological geophysics in the UK, this technique is effective for detecting features with magnetic contrast from the surrounding soil, such as burnt features, pits and ditches.

Magnitude Surveys uses a bespoke modular multi-sensor system which can be quickly configured between hand-pulled cart, motorised cart, and hand-carried modes, ensuring maximum efficiency and flexibility across changing survey environments, all while maintaining consistently high data quality. The system incorporates the latest in fluxgate sensor technology to provide higher sensitivity and additional data outputs, leading to more detailed visualisations and higher confidence in interpretation.

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Our techniques

Learn more about the techniques that we use.

Photogrammetry

Uses high-resolution cameras to create accurate and detailed topographical maps, scaled plans and 3D models of assets, sites and landscapes for use in mapping, topographic survey, inspections and monitoring.

Earth Resistivity Tomography (ERT)

Multiple earth resistance profile measurements are fused to create 2D sections and 3D profiles of electrical resistivity through the ground, commonly used to determine the depth of known features.

Multispectral Imaging

Primarily used in precision agriculture, environmental surveys and forestry, this specialised sensor can also detect cropmarks caused by archaeological and other subsurface features.

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