By Alex Kilpa Maritime Archaeology Masters Student
So you’ve done all your homework, you’ve consulted all the relevant historical documentation and you know its approximate location, but where exactly is that illusive shipwreck? This is a typical scenario that maritime archaeologists are confronted with when trying to locate cultural materials deposited in an underwater environment. One remote sensing device that can assist in detecting shipwrecks and other cultural materials is the magnetometer. In essence, a magnetometer is an instrument that measures “magnetic force field intensity and direction”. This is done at the sensor data collection point where the measurements are taken. (Hine 1968:125; Ripka 2001:xvii).