Tag: magnetic field models
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Swarm Reveals Weak Spot in Earth’s Magnetic Field
Overview: A Growing Magnetic Weak Spot The European Space Agency’s Swarm mission has delivered a striking finding: the South Atlantic Anomaly (SAA), a region where Earth’s magnetic field is unusually weak, has expanded by nearly half the size of continental Europe since 2014. Using 11 years of magnetic field measurements from the Swarm satellite trio,…
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Swarm Reveals Growing Weak Spot in Earth’s Magnetic Field
Overview: A Shifting Shield Earth’s magnetic field is a dynamic, protective shield that deflects cosmic radiation and charged particles from the Sun. Using 11 years of precise measurements from the European Space Agency’s Swarm mission, scientists have traced a troubling trend: the South Atlantic Anomaly (SAA), a region of weakened field strength over the South…