Archiv: South Atlantic Magnetic Anomaly (SAMA)


20.11.2018 - 12:55 [ Forbes.com ]

What Caused That Spooky And Impossible Fire In The Atlantic Ocean?

(31.10.2018) There was no fire; it was a radiation phantom, playing tricks with the satellite’s highly sensitive instruments.

As Voiland’s piece notes, algorithms are designed to filter out these curiosities, but every now and then, a few can slip through, resulting in some rather fascinating ghosts in the machine.

20.11.2018 - 12:45 [ National Aeronautics and Space Administration ]

A Fire in the Middle of the Atlantic Ocean?

(14.7.2017) “It is almost certainly SAMA,” Oliva said, using an acronym for the South Atlantic Magnetic Anomaly. This weakness in Earth’s magnetic field, centered over South America and the South Atlantic, allows one of Earth’s Van Allen radiation belts—zones of energetic particles trapped by the magnetic field—to dip closer to the atmosphere. As a result, much of South America and part of the South Atlantic Ocean get an extra dose of radiation.