Scientists from Leda and California University in San Diego have discovered that changes in the direction of the Earth's magnetic field can occur 10 times faster than previously thought.
According to the study, published in the scientific journal "Nature", the researchers analyzed data related to changes in the Earth's magnetic field over the past 100 thousand years and combined it with a model that simulates the generation of the Earth's magnetic field, where it turns out that rapid changes are related to the local weakness of the magnetic field.
It was believed that the maximum rate of magnetic field displacement is one degree per year. However, according to the new data, the speed can reach a record ten degrees a year, which is 10 times faster than the current changes.
It is noteworthy that the Earth's magnetic field arises due to the convection flows of the molten metal in the outer core of the Earth.
Over the past 200 years, the planet Earth lost about 9% of its magnetic force, and between 1970 and 2020 the minimum force decreased from about 24,000 to 22,000 nanotlasses.
It is well known that the Earth's magnetic field completely turns the poles every few hundreds of thousands of years, and experts consider that the Earth was delayed by the occurrence of this coup, and that this recent "unjustified" magnetic activity over the Atlantic Ocean is a sign of an imminent heart in the magnetic poles, in another phenomenon that occurred Once about 780 thousand years ago.
Sections :
Space