Geophysical Survey Methodology

A number of different geophysical survey methods were employed on the wreck sites chosen for survey.
 
It was intended to examine the relevance of these survey methods to archaeological evaluation and to optimise system settings and survey parameters.
 
Multibeam sonar was used to gather bathymetric data from the wreck sites for the creation of 3D terrain models and georeferenced 2D images.
 
Magnetometer surveys were conducted to establish the magnetic signature of the sites.
 
Sub bottom profiler surveys served to provide information on the general geological stratigraphy on the sites and to indicate the presence of buried material.