Data was collected using a cart carrying four paired Bartington magnetic sensors. Four sensors mounted 1m horizontally apart and very accurately aligned to nullify the effects of the earth's magnetic field. Readings relate to the difference in localised magnetic anomalies compared with the general magnetic background. Each data point is geographically referenced using an on-board Trimble RTK survey grade GPS system. Readings were taken at 0.125m centres along traverses 1.0m apart. Readings relate to the difference in localised magnetic anomalies compared with the general magnetic background. The magnetometer survey has recorded magnetic responses that have been interpreted as being of possible archaeological interest given their proximity to known excavated features. Numerous pit-like responses and a couple of curving trends have been identified which could have archaeological origins; however, some of them may be due to pockets of naturally magnetic gravels. Anomalies of uncertain origin have also been marked; they are likely to have been caused by natural variations in the geology or modern features / ground disturbance associated with the former golf course. Several greens, bunkers and banks associated with the former golf course have been recorded. A former field boundary, modern trackway and service pipes are also visible in the magnetic data.
Thomas Cockcroft (Wed,) studied this question.