According to engineers from the GPS service over the last year "running" of the magnetic poles of our planet has increased. North moves to the south at an alarming rate of 8 meters per hour ...
At this point in time, Earth's magnetic poles located near the Fargo-Moorhead, is nearEllesmere Island in northern Canada.
Eight meters per hour - 180 meters per day, is 65 km per year. The researchers assure us that they are now watching is the fastest in the history of the observed decrease in the magnetic field. What are the chances that in the near future we will also see the change ofthe magnetic poles to fully reverse polarity (ie the north magnetic pole is over the South Pole, and vice versa).
Modern GPS systems calculate a new magnetic North Pole. It is located almost directlynorth of Canada, near Ellesmere Island, which is quite far from the real North Pole.When measured in degrees - the deviation of about 15 degrees from true north. And while their speed only accelerated.
So what does this mean for us? In fact, while scientists argue about that in any way a unified theory. But they differ from the "horror stories" - like the fact that the Earth will stop and all life on it will die, until completely pofigistskih "nobody will notice anything."
So far we know only that the Earth's magnetic field periodically changes its polaritydoes. At the moment, the magnetic field lines are literally "run" from the South Pole to the North Pole, and the point in the southern hemisphere, crawling down into thenorthern hemisphere.
Earth "overstayed" pole shift
As scientists have determined that the planet has not just changed their poles? This information they found in the mountains and rocks - that the direction of the ambient magnetic field, how they form, has enabled researchers to reconstruct the history of thesereversals. According to geologists, the last time the field turned over about 780 thousand years ago (0.78 Ma), prior reversals took place in a very disjointed schedule: 0.99, 1.07, 1.19, 1.2, 1.77 and 1.95 million years ago.
According to this scale, the typical period between the "turn" in the past few million years,it is much less than the duration of 780 thousand years. Ie You can say that at this stage"revolution" was overdue.
Is this true? The symmetrical structure of the magnetic anomalies on either side of mid-ocean ridges give us a continuous record of magnetic reversals, numbering almost 200 million years. This shows that the time between reversals - is not constant and varies from a few hundred thousand years to millions of years. As it was, for example, in the Late Cretaceous period, then a reversal occurred, with an interval of about between 85 and 125 million years ago. Ie field retains the same polarity for 40 million years.
This view suggests that an attempt to predict the future at a geomagnetic "periodicity" of past reversals - a very risky venture, to say the least. Another thing is that the current weakening of the Bol factors indicate that the strength of Earth's magnetic field changes during a reversal, because the geodynamic theory suggests that the reversals are likely to occur when the fluctuations in the cosmic core convection weaken and destabilize the dipole. This prediction is particularly relevant in light of the fact that the strength of Earth's magnetic field has been steadily declining at a rate of about 5% in 100 years.And since we first started measuring it in the mid-19th century, we can say that over the past 200 years, it has weakened by more than 10%. Is this a harbinger of a reversal?
Scientists tell about it ... stones. They can store information about the ancient Earth's magnetic field intensity. Ie ancient rocks show how they were magnetized millions of years ago.
Soon the Earth will be a little "North" and "South"
So it rocks suggests that each "switching" of polarity occurs when the field is the weakest. And a little less extreme dips in the intensity of the field when they are associated with so-called "time shift" - a period when the change of magnetization showed that the magnetic poles are merely "wandering" is quite far from the geographic poles (just like now). Just geodynamic theory predicts that the weakening of the magnetic field seems to be associated with new processes within the Earth's core. It is interesting to note that the field in our period, was much stronger than the last time a "revolution." These data may explain why the polarity of the current interval is longer than the previous.
The other interesting thing - before the field were rather consistently at every turn. The level of field strength on each change of polarity of each other, over time, decreasing from right to left. In each case the reversal is preceded by at least 20 - 40 thousand years, rather a continuous decay of the field at about the same, very low, the value at a much faster recovery of the field after the transition. In this context, a couple of centuries, the field weakening - not so much.
So, history tells us one thing: turn not an instantaneous event, and our compasses will point to the north and south right tomorrow. Instead, the geomagnetic field will weaken, and the magnetic poles start to wander in the lower latitudes, and perhaps they will even more! Ie in different parts of the world's compass will point to a certain point of the axis of the pole. This process can take thousands of years.