![]() ![]() 1 Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, 05508-090 São Paulo, Brazil 2 Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, 05508-090 São Paulo, Brazil.What do you understand by the phenomenon South Atlantic Anomaly? Explain its mechanism with respect to Van der Allen radiation belt. Because of this asymmetry, the inner Van Allen belt is closest to the Earth's surface over the south Atlantic Ocean where it dips down to 200 km (120 mi) in altitude, and farthest from the Earth's surface over the north Pacific Ocean.The intersection between the magnetic and rotation axes of the Earth is located not at the Earth's center, but some 450 to 500 km (280 to 310 mi) away.The Van Allen radiation belts are symmetric about the Earth's magnetic axis, which is tilted with respect to the Earth's rotational axis by an angle of approximately 11°.Apollo Astronauts going through the Van Allen Belts received a very low and non-harmful dose of radiation.In 2013, the Van Allen Probesdetected a transient, third radiation belt, which persisted for four weeks. ![]()
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