New study reveals more about anomaly in Earth's magnetic field

The South Atlantic Anomaly is an area in which the magnetic field strength is significantly reduced

Land compared to areas in similargeographic latitudes. Therefore, people observing this area may notice technical malfunctions on board satellites and spacecraft.

Image: ESA

For the first time in a long time we followedthe state of the magnetic field in this area of ​​the Atlantic. Data shows that this anomaly has existed for a very long time. Therefore, its existence cannot indicate an imminent reversal of the poles.

Yael Engbers, one of the authors of the paper, is a geophysicist at the University of Liverpool in the UK.

South Atlantic anomaly remained subjectcontroversy over the years, in addition to the fact that it damages space technology. It is not known where the deviations come from and whether they indicate the beginning of a complete weakening of the field and a possible impending reversal of the poles.

A group of researchers took measurements and found outthat the average power of the magnetic field and the general vector of its direction inside the South Atlantic Magnetic Anomaly remained almost unchanged throughout this time. This means that there are no plans to change the poles in the near future, because this area has existed for more than 11 million years. 

Scientists also note that their findings supporthypothesis about the connection between the South Atlantic anomaly and anomalous seismic features in the lowest mantle and the outer core of our planet. In addition, geophysicists plan in the near future to establish a connection between the behavior of the geomagnetic field and processes in the interior of the Earth.

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