I was at the airport and snapped this photo and came home and looked up the Canadian registration. (enter C-GCMD) The plane is owned by Firefly Aviation Ltd in Calgary. Apparently, they use the magnetometer on the rear of the aircraft to perform aerial geophysical surveys. I wonder who hired them and how the science works? I mean, I think I know how a magnetometer works, but does a positive or negative magnetic anomaly signal a potential oil or gas field, or is it more complicated than that?
Here is what Wikipedia says about it.
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Magnetometer equipped aircraft (notice boom sticking out the back of the plane) |