Archaeology and UXO in the North Sea

For this project T&A Survey  has mapped the bottom of the North Sea in order to detect possible obstacles for sand extraction. These obtacles could be either of archaeological value, like old shipwrecks which by law are required to be handled wih care, or explosives from World War II. T&A has used three different geophysical techniques, which together created a detailed map of the bottom of the ocean: mulitbeam echo sounder, sidescan sonar and magnetometer.

The survey resulted in a list of objects and their GIS coordinates, distinguishing between object of archaeological value and potential explosives. With these results the client was able to determine whether further safety measures or archaeological research were necessary before starting the sand extracion acitivities.