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How to Determine a Core Flux

Core flux refers to rapid change in the Earth's core. Because the core cannot be observed directly, the only accurate way to determine whether core flux is occurring or has occurred is to measure the effect the core is having on the the Earth's magnetic field. The simplest way to detect core flux is by tracking the changing location of Earth's magnetic poles. Rapid movement of the magnetic poles indicates a high likelihood of core flux. Because the magnetic poles are in the Arctic and Antarctic regions, determining their location is extremely difficult.

magnetometer

Instructions

- 1
  Determine the last known location of the magnetic pole. For the magnetic North Pole, the Geological Survey of Canada tracks its location with expeditions every few years.
- 2
  Find the current location of the magnetic pole. The only precise measure of this location is to place a magnetometer on the spot. The magnetometer will indicate that the Earth's magnetic pole is directly downward when placed on the magnetic pole.
- 3
  Track the changes over time. Earth's magnetic poles are constantly in motion, but a rapid change in the motion indicates the presence of core flux. In 2009, National Geographic reported a rapid change in the location of the magnetic North Pole.

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