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The English version of our glossary is currently under construction and will be regularly updated.

EM induction surveying

Electromagnetic induction surveying.

Electromagnetic induction surveying (EM) is a method used to measure the thickness of the sea ice in the Arctic and Antarctic. EM ice-thickness measurements use the contrast in electrical conductivity between seawater and sea ice to determine the distance between the EM instrument and the ice-water boundary layer. The method can be used with surface-based and airborne sensors alike.

Design of the EM-Bird System.