South Atlantic Anomaly

The South Atlantic Anomaly (SAA) is a region over the South Atlantic Ocean where the Earth's magnetic field is significantly weaker than in other areas. This anomaly is characterized by a dip in the geomagnetic field intensity, which allows higher levels of radiation, primarily from cosmic rays and solar particles, to penetrate closer to the Earth's surface. The SAA is primarily located over parts of South America, particularly Brazil, and extends into the southern Atlantic Ocean.