The magnetic fields of the Earth is generated within its liquid outer core. Electric currents driven by the Earth's rotation generates this field. Within this liquid outer core, turbulent flow and convective motion cause the liquid iron alloy outer core to behave convectively. This generates a non-uniform magnetic field. However, the convective flow is constantly regenerated at different speeds, which creates a dynamo effect resulting in the reversal of the planetary magnetic field. During such events of magnetic reversal, the non-uniform magnetic field becomes weak and ultimately collapses before it re-establishes itself in a newly aligned configuration of opposite polarity with the north magnetic pole becoming the south magnetic pole and vice-versa.