Modelling the three dimensional geomagnetic field surrounding the wreck of HMT Elk

Marine magnetometer data is presented in many different formats, this report not only develops a completely brand new method but also allows the anomaly to be viewed in never before seen detail. Current magnetometer data is often shown in two dimensions, with a rare addition of a z-axis. As and when a z-axis is included it is always to show change in magnetic intensity and not related to depth. This report overlays three various depth magnetometer surveys of the same area to construct the first truly three dimensional representation of the magnetic anomaly surrounding a shipwreck. Through inter- and intra-layer interpolation of the data sets we can model the change in magnetic intensity both vertically and horizontally in the water column and as a result can produce an accurate graphical representation of the anomaly as described mathematically by the Hall equation. Resulting from this model it is possible to undergo detailed examination of the anomaly and for the first time to compare a theoretical anomaly as described by the Hall equation to a genuine measured data set