South Atlantic anomaly intensifies

We have a problem with the earth's magnetic field, and the majority of news agencies say it, a weak point, exactly, “swarm reveals a growing weak point in the Earth's magnetic field, is the title of the European Space Agency.

The swarm is what is called the constellation of satellites that has been measuring the Earth's magnetic field for 11 years and collecting all the data on the Earth's magnetic field. The image seems to me to be that they should have intensified the colors and it looks a little diffuse, and above all it is seen between levels or gradients.

The yellow spot shown, which is the opposite, is a point of strengthening of the Earth's magnetic field under Australia, what happens is that it is strengthened in an area where no one lives, that is the problem.

The above was so that you have a reference that there are points where it strengthens and others where it weakens, and in the blue zone it is weakening over South America, they call it the South Atlantic anomaly, but in reality most or a large part is over South America, where Brazil, Argentina, Uruguay, Paraguay, northern Chile, Bolivia and Peru are located.

The swarm has discovered that, in the weak region, which was already known, but they have discovered that this weak region of the Earth's magnetic field that is located over the South Atlantic and known as the South Atlantic anomaly, as it has expanded into an area that is almost half the size of continental Europe since 2014 has increased greatly.

The Earth's magnetic field, of course, is vital for life on our planet, it is a complex force that is born from the Earth's core and protects us from cosmic radiation and charged particles from the Sun, it is generated mainly by the global ocean of molten liquid iron that is found in the outer core about 3,000 km under our feet and acts like a bicycle dynamo, basically when the dynamos rotate they produce an electrical charge and in the case of bicycles it allowed the bicycle lamps to be illuminated, the small ones the small headlights they had.

In the case of the Earth, this dynamo is much larger and allows us to create that protective magnetic field that protects us from solar ejections, from cosmic radiation, it is not 100% faithful, for example, at the poles, there you would receive more radiation than in the equatorial areas, and here, well, in principle you would receive a little more radiation, although on the surface it would not be noticeable, there are no effects on the surface of this erosion because it is not a hole, do not think of this anomaly as a hole in the Earth's magnetic field, it is rather erosion, it is a weakening, a weak point of our Earth's magnetic field. There is no study on the incidence of this weakening on human health, but I am a little pessimistic, I sometimes think, if this were really about the United States or Europe, I am sure they would do a lot of studies, but it is about where it is and I have that doubt.

Of course, it should not be a very notable influence, if there is any type of influence on human health, but it is worrying, it is an issue that worries me, not only because it is an erosion in the Earth's magnetic field, but because it has effects on the space satellites, it also has effects on the health of the astronauts, the International Space Station and China try not to go through there and if they have to go through there they order the astronauts of those space stations to get into the armored areas of the stations, because the Space stations have protection zones for this type of case.

And of course, there is another thing that is disturbing and that is that we really do not know why this is happening, it is believed among the theories that are being used, it is believed that this anomaly is linked to the strange patterns in the magnetic field that exist at the boundary between the liquid outer core of the Earth and its rocky mantle, known as reverse flow patches, the strange patterns are literally what the statement from the European Space Agency says and we know very little about how they work.

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