In what year will the earth's magnetic field change? Why is the strength of the Earth's magnetic field rapidly decreasing? How does inversion happen?

Any person who observes the phenomena occurring these days related to global climate change on the planet, one way or another, but thinks, firstly, about the reasons for the increase in the number and strength of natural disasters, and secondly, about the possibility of long-term forecasting of natural disasters in order to helping society. After all, today there is more and more information about humanity’s entry into the era of global natural disasters. Is it possible, if not completely preventing, then at least minimizing the consequences of global climate change on the planet? The search led to very impressive and positively encouraging information - a report by the ALLATRA SCIENCE community of scientists: "On the problems and consequences of global climate change on Earth. Effective ways to solve these problems." The report contains unique information for each person, as this is the key to solving climate problems of any complexity. It also shows a real way out of the current situation through the unification of the world community on a creative, spiritual and moral basis.

The Earth’s magnetic field is the planet’s natural “shield” from cosmic and solar radiation harmful to all living things. In fact, if the Earth did not have its own magnetic field, then life, in the form we are familiar with, would be impossible on it. The strength of the Earth's magnetic field is distributed non-uniformly and averages about 50,000 nT (0.5 Oe) on the surface and varies from 20,000 nT to 60,000 nT.

Rice. 1. “Snapshot” of the main magnetic field on the Earth’s surface in June 2014 based on data from Swarm satellites. Areas of strong magnetic field are indicated in red, and areas of weakened magnetic field are indicated in blue.

However, observations show that the Earth's magnetic field is gradually weakening, while the geomagnetic poles are shifting. As stated in the above-mentioned report, these processes are influenced, first of all, by certain cosmic factors, although traditional science does not yet know about them and does not take them into account, trying to find answers in the bowels of the Earth to no avail.

Data transmitted by the Swarm satellites launched by the European Space Agency (ESA) confirm the general trend of weakening magnetic field strength, with the greatest level of decline observed in the Western Hemisphere of our planet.

Rice. 2. Change in the strength of the Earth’s magnetic field for the period from January 2014 to June 2014 according to Swarm data. In the figure, lilac color corresponds to an increase, and dark blue corresponds to a decrease in voltage in the range of ±100 nT.

Analyzing the consequences of many natural disasters, scientists have found that before the onset of seismic activity, anomalies in the Earth's magnetic field appear. In particular, the earthquake that occurred on March 11, 2011 in Japan was preceded by the activation of the Pacific lithospheric plate in subduction zones. This event became a kind of indicator of a new phase of seismic activity associated with the acceleration of the movement of this lithospheric plate. The shift of geomagnetic poles located in Eastern Siberia and the Pacific Ocean, due to cosmic factors, led to large-scale changes in secular magnetic variations in the Japanese archipelago. The result of these phenomena was a series of powerful earthquakes with a magnitude of 9.0.

It is officially believed that over the past 100 years, the Earth's magnetic field has weakened by about 5%. In the area of the so-called South Atlantic Anomaly off the coast of Brazil, the weakening was even more significant. However, it is worth noting that earlier, as now, ground-based measurements were carried out pointwise, and on land, which can no longer reflect the full picture of secular changes in the magnetic field. Also, holes in the Earth’s magnetic field are not taken into account - peculiar gaps in the magnetosphere through which huge flows of solar radiation penetrate. For reasons unknown to traditional science, the number of these holes is constantly growing. But we will talk about them in the following publications.

It is known that the weakening of the Earth’s magnetic field leads to a polarity reversal, in which the north and south magnetic poles change places and their inversion occurs. Research in the field of paleomagnetism has shown that earlier, during polar reversals, which occurred gradually, the Earth's magnetic field lost its dipole structure. The inversion of the magnetic field was preceded by its weakening, and after it the field strength again increased to its previous values. In the past, these reversals occurred on average approximately every 250,000 years. But since the last one, according to scientists, about 780,000 years have passed. However, official science cannot yet provide any explanation for such a long period of stability. In addition, the correctness of interpretation of paleomagnetic data is periodically criticized in scientific circles. One way or another, the rapid weakening of the magnetic field these days is a sign of the beginning of global processes both in outer space and in the bowels of the Earth. That is why the cataclysms occurring on the planet are caused to a greater extent by natural factors than by anthropogenic influence.

Traditional science is still finding it difficult to find an answer to the question: what happens to the magnetic field at the moment of inversion? Does it disappear completely or weaken to certain critical values? There are many theories and assumptions on this subject, but none of them seems reliable. One of the attempts to simulate the magnetic field at the time of reversal is shown in Fig. 3:

Rice. 3. Model representation of the main magnetic field of the Earth in its current state (left) and in the process of polarity reversal (right). Over time, the Earth's magnetic field can turn from dipole to multipole, and then a stable dipole structure will form again. However, the direction of the field will change to the opposite: the north geomagnetic pole will be in the place of the south, and the south will move to the Northern Hemisphere.

The very fact of the presence of significant magnetic anomalies at the time of polarity reversal can lead to global tectonic phenomena on Earth, and also pose a serious danger to all life on the planet due to the increasing level of solar radiation.

PRIMORDIAL ALLATRA PHYSICS is developing methods for observing the Earth’s magnetic field, as well as the Earth’s septon field. These data make it possible to respond in a timely manner to their variations and take countermeasures aimed at eliminating or minimizing natural disasters. Early identification of sources of future disasters (earthquakes, volcanic eruptions, tornadoes, hurricanes) makes it possible to launch adaptive mechanisms, due to which the intensity of seismic and volcanic activity is significantly reduced, and there is time to warn the population living in a dangerous area. This area of advanced scientific research is called climate geoengineering and includes the development of a new direction and methods that are completely safe for the integrity of the ecosystem and human life, based on a fundamentally new understanding of physics - THE PRIMORDIAL ALLATRA PHYSICS. To date, a number of successful steps have been taken in this direction, which have acquired a solid scientific basis and practical confirmation. The initial stage of practical development of this area is already demonstrating stable results... .

In a period of ever-increasing danger of global climate events, it is vital for humanity to unite on creative spiritual and moral foundations, constantly expand the knowledge of PRIMORDIAL ALLATRA PHYSICS, and develop promising scientific directions mentioned in the report. SPIRITUALITY and ALLATRA SCIENCE are precisely the solid foundation that will allow humanity to survive in the era of global climate change and create, in new conditions, a new type of society that humanity has long dreamed of. Initial knowledge was given in the reports of the ALLATRA SCIENCE community, and now a lot depends on each person so that it is used exclusively for good!

Vitaly Afanasiev

Literature:

Report “On the problems and consequences of global climate change on Earth. Effective ways to solve these problems” by an international group of scientists of the International Social Movement “ALLATRA”, November 26, 2014 http://allatra-science.org/publication/climate;

Swarm reveals Earth’s changing magnetism, ESA, 19 June 2014, http://www.esa.int/Our_Activities/Observing_the_Earth/Swarm/Swarm_reveals_Earth_s_changing_magnetism

The earth is surrounded by a magnetic field. It is what causes the compass needle to point north and protects our atmosphere from the constant bombardment of charged particles from space, such as protons.

Without a magnetic field, our atmosphere would slowly disappear under the influence of harmful radiation, and life would almost certainly not be able to exist in the form we see today.

Geomagnetic inversions

You may think that the magnetic field is an infinite, constant aspect of life on Earth, and to some extent you would be right. But the Earth's magnetic field is actually changing. About once every few hundred thousand years or so it turns over. The North Pole changes places with the South Pole. And when this happens, the magnetic field also tends to become very weak.

South Atlantic Anomaly

Currently, geophysicists are alarmed by the realization that the strength of the Earth's magnetic field has been declining at an alarming rate over the past 160 years. This collapse is concentrated in a vast area of the southern hemisphere and stretches from Zimbabwe to Chile. It is known as the South Atlantic Anomaly. The strength of the magnetic field in this place is so weak that it even poses a danger to satellites that orbit the Earth over this area. The magnetic field no longer protects them from radiation that interferes with satellite electronics.

Consequences of a magnetic field reversal

But that is not all. The strength of the magnetic field continues to weaken, potentially heralding even more dramatic events, including a global reversal of the magnetic poles. This significant change will affect our navigation systems as well as the transmission of electricity. The Northern Lights will be visible at different latitudes. In addition, at very low field strengths during a global roll, more radiation will reach the Earth's surface, which could also affect cancer rates.

Scientists still do not fully understand the extent to which these effects will be achieved, so their research is especially relevant. They use some perhaps surprising sources of data, including 700 years of African archaeological records, to explore this question.

Origin of the Earth's magnetic field

The Earth's magnetic field is created by the presence of iron in the liquid outer core of our planet. Thanks to data from observatories and satellites that have recently been studying the magnetic field, scientists can accurately model what it would look like if we placed a compass directly above the Earth's swirling liquid core.

Reverse polarity spot

These analyzes reveal a striking feature: below southern Africa, there is a patch of reverse polarity at the core-mantle boundary, where the liquid iron of the outer core meets the rigid part of the Earth's interior. In this region, the polarity of the field is opposite to the average global magnetic field. If we could place a compass deep beneath southern Africa, we would see that in this unusual region the arrows indicating north actually point south.

This spot is the main culprit of the anomaly in the South Atlantic. In numerical simulations, unusual spots similar to this one appeared just before geomagnetic reversals.

Throughout the history of the planet, the magnetic poles have changed quite often, but the last reversal occurred in the distant past, approximately 780 thousand years ago. Given the rapid decline in magnetic field strength over the past 160 years, questions arise about what happened before then.

Study of archaeomagnetism

During archaeomagnetic research, geophysicists and archaeologists try to learn about the past of the magnetic field. For example, clay that was used to make pottery contains small amounts of magnetic minerals such as magnetite. When clay was heated during the process of creating pottery, its magnetic minerals lost any magnetism they may have had. As they cooled, they recorded the direction and intensity of the magnetic field at that time. If the age of pottery can be determined (using radiocarbon dating, for example), then there is also a chance to reconstruct archaeomagnetic history.

Using this kind of data, scientists have a partial history of archaeomagnetism for the Northern Hemisphere. In contrast, in the Southern Hemisphere these records are very sparse. In particular, there is virtually no data from South Africa, although this region, along with South America, could provide a better understanding of the history of the modern anomaly.

Archaeomagnetic history of southern Africa

But the ancestors of modern South Africans, the metallurgists and farmers who began migrating to the region some 2,000 to 1,500 years ago, inadvertently left us some clues. These Iron Age people lived in huts made of mud and stored grain in fortified clay silos. As early Iron Age agronomists in southern Africa, they relied on rainfall.

These communities often responded to times of drought with cleansing rituals that entailed the burning of granaries. These somewhat tragic events for ancient people ultimately turned out to be a boon for the study of archaeomagnetism. As with the firing and cooling of pottery, the clay in the granaries recorded the Earth's magnetic field as it cooled. Because these ancient huts and grain silos are sometimes found intact, scientists can use them to obtain data about the direction and strength of the magnetic field at that time.

The scientists focused their attention on sampling from the Iron Age sites that dot the Limpopo River valley.

Magnetic field flux

Sampling along the length of the Limpopo River provided the first data on the magnetic field of southern Africa between 1000 and 1600 AD. Scientists found that around 1300 the strength of the magnetic field in this area was declining as quickly as it is today. Then its intensity increased, although at a slower pace.

The appearance of two intervals of rapid field decay - about 700 years ago and modern - suggests the opposite phenomenon. Perhaps a similar anomaly appeared regularly in South Africa and is older than the data showed? If so, why is it repeated in the same place?

Over the past decade, researchers have accumulated data from analyzes of seismic waves from earthquakes. As seismic waves travel through the layers of the Earth, the speed at which they travel is an indicator of the density of the layer. Scientists now know that a large area of slow seismic waves characterizes the main mantle boundary beneath southern Africa.

This particular region is likely tens of millions of years old, and its boundaries are clear. It is interesting to note that the spot of reverse polarity practically coincides with its eastern edge.

Scientists believe that the unusual African mantle changes the flow of iron into the core from below, which in turn changes the behavior of the magnetic field at the edge of the seismic region and the reverse polarity patch.

This area is expected to grow rapidly and then slowly return to normal. From time to time, one spot of reverse polarity can become large enough to dominate the magnetic field of the southern hemisphere.

How does inversion happen?

The traditional idea of an inversion is that it can start anywhere in the nucleus. However, a new conceptual model suggests that there may be special locations at the core-mantle boundary that promote these magnetic field reversals. It is not yet known whether the current magnetic field will begin to weaken in the next few thousand years, or whether it will simply continue to weaken over the next two centuries.

But the evidence provided by the ancestors of modern South Africans will undoubtedly help scientists further study their proposed inversion mechanism. If this idea is correct, a pole reversal could begin in Africa.

The weakening of the Earth's magnetic shield will expose us to solar magnetic radiation. Analysis of data from two satellites, Oersted, launched in 1999, and Magsat, launched 20 years earlier, confirm that the Earth's magnetic field experiences significant fluctuations. It is now impossible to say whether this is a temporary effect associated with the fact of moving away from the ecliptic, or a harbinger of a longer-term phenomenon, but in both cases this is alarming data.

Decrease in the density of the Earth's magnetic field

The strength of the Earth's magnetic field appears to have decreased by 10% over the past 150 years, leading some to speculate that it may disappear over time and then resume and shift, leading to a shift in the magnetic poles for the first time in 700,000 years.

Instability of the north magnetic pole

The earth behaves like a huge dynamo. Iron and nickel, in a liquid state, make up the Earth's core, move around and create a vast magnetic field that envelops the Earth. But since the matter that makes up the core is in constant motion, the magnetic poles are also constantly moving.

Thus, the north magnetic pole does not coincide with the geographic north pole, now it is at the level of Canada and tends to get closer to the geographic pole, moving towards Russia (Siberia) along the northwest axis.

This movement is accelerating from a speed of 10 km per year before 1970 to today's rate of 40 km per year. However, according to Larry Nevitt of the Geological Commission of Canada, the observed acceleration of the north magnetic pole is a consequence of what scientists call "secular jumps" that nullify any predictions.

The problem is that this continued acceleration of the north pole is associated with a decrease in the strength of the magnetic field and may equally lead to the idea that the electromagnetic configuration of the Earth is no longer stable and is tending to reshape itself.

Indeed, from a geological point of view, the south magnetic pole is not content to move towards the north geographic pole. Periodically, it fluctuates suddenly and roughly, and this can occur within 180 ◦. Research into polarity changes spans 7 million years. They indicate that significant changes occur every 500 thousand years.

Luke Fleury. The Epoch Times

Any person who observes the phenomena occurring these days related to global climate change on the planet, one way or another, but thinks, firstly, about the reasons for the increase in the number and strength of natural disasters, and secondly, about the possibility of long-term forecasting of natural disasters in order to helping society. After all, today there is more and more information about humanity’s entry into the era of global natural disasters. Is it possible, if not completely preventing, then at least minimizing the consequences of global climate change on the planet? The search led to very impressive and positively encouraging information - a report from the ALLATRA SCIENCE community of scientists: " ". The report contains unique information for each person, as this is the key to solving climate problems of any complexity. It also shows a real way out of the current situation through the unification of the world community on a creative, spiritual and moral basis.

The Earth's magnetic field is the planet's natural “shield” from cosmic and solar radiation harmful to all living things. In fact, if the Earth did not have its own magnetic field, then life, in the form we are familiar with, would be impossible on it. The strength of the Earth's magnetic field is distributed non-uniformly and averages about 50,000 nT (0.5 Oe) on the surface and varies from 20,000 nT to 60,000 nT.

Rice. 1. “Snapshot” of the main magnetic field on the Earth’s surface in June 2014 based on data from Swarm satellites . Regions of a strong magnetic field are indicated in red, and regions of a weakened one in blue.

However, observations show that The Earth's magnetic field is gradually weakening, while the geomagnetic poles shift. As stated in the above-mentioned report, these processes are influenced, first of all, by certain cosmic factors, although traditional science does not yet know about them and does not take them into account, trying to find answers in the bowels of the Earth to no avail.

Data transmitted by Swarm satellites launched by the European Space Agency (ESA) ), confirm the general tendency for the magnetic field to weaken, and the greatest level of decline is observed in the Western Hemisphere of our planet .

Rice. 2. Change in the strength of the Earth’s magnetic field over a periodfrom January 2014 to June 2014 according to Swarm. In the figure, lilac color corresponds to an increase, and dark blue corresponds to a decrease in voltage in the range of ±100 nT.

Analyzing the consequences of many natural disasters, scientists have found that before the onset of seismic activity, anomalies in the Earth’s magnetic field appear. In particular, the earthquake that occurred on March 11, 2011 in Japan was preceded by the activation of the Pacific lithospheric plate in subduction zones. This event became a kind of indicator of a new phase of seismic activity associated with the acceleration of the movement of this lithospheric plate. The displacement of the geomagnetic poles located in Eastern Siberia and the Pacific Ocean, due to cosmic factors, led to large-scale changes in secular magnetic variations in the territory of the Japanese archipelago. The result of these phenomena was a series of powerful earthquakes with a magnitude of 9.0.

It is officially believed that over the past 100 years, the Earth's magnetic field has weakened by about 5%. In the area of the so-called South Atlantic Anomaly off the coast of Brazil, the weakening was even more significant. However, it is worth noting that earlier, as now, ground-based measurements were carried out pointwise, and on land, which can no longer reflect the full picture of secular changes in the magnetic field. Also, holes in the Earth's magnetic field are not taken into account - peculiar gaps in the magnetosphere through which huge flows of solar radiation penetrate. For reasons unknown to traditional science, the number of these holes is constantly growing. But we will talk about them in the following publications.

Traditional science is still finding it difficult to find an answer to the question: what happens to the magnetic field at the moment of inversion? Does it disappear completely or weaken to certain critical values? There are many theories and assumptions on this subject, but none of them seems reliable. One of the attempts to simulate the magnetic field at the time of reversal is shown in Fig. 3:

The development of methods for observing the Earth's magnetic field, as well as septon field of the Earth is engaged . These data make it possible to respond in a timely manner to their variations and take countermeasures aimed at eliminating or minimizing natural disasters. Early identification of sources of future disasters (earthquakes, volcanic eruptions, tornadoes, hurricanes) makes it possible to launch adaptive mechanisms, due to which the intensity of seismic and volcanic activity is significantly reduced, and there is time to warn the population living in a dangerous area. This area of advanced scientific research is called climate geoengineering and includes the development of its new direction and methods, completely safe for the integrity of the eco-system and human life, based on a fundamentally new understanding of physics ‒ PRIMORDIAL PHYSICS OF ALLATRA. To date, a number of successful steps have been taken in this direction, which have acquired a solid scientific basis and practical confirmation. The initial stage of practical development of this area is already demonstrating stable results... .

In a period of increasing danger of global climate events, it is vital for humanity to unite on creative spiritual and moral foundations and constantly expand knowledge PRIMORDIAL PHYSICS ALLATRA, develop promising scientific directions mentioned in the report. SPIRITUALITY And ALLATRA SCIENCE- this is precisely the solid foundation that will allow humanity to survive in the era of global climate change and create, under new conditions, a new type of society that humanity has long dreamed of. Initial knowledge was given in the reports of the ALLATRA SCIENCE community, and now a lot depends on each person so that it is used exclusively for good!

Vitaly Afanasiev

Literature:

A team of European researchers compared the current state of the Earth's magnetic field with its turbulent geological past and found that the current signs of magnetic field disruption are not similar to those that preceded previous pole shifts.

The current situation is reminiscent of events 49,000 years ago and 46,000 years ago - when there was some significant weakening in the strength of the magnetic field, but without a sharp shift in the poles. However, scientists still have many questions about what will happen next to the magnetic field.

The magnetic field inherently provides comfortable conditions for life on our planet. It protects the Earth from cosmic radiation and solar storms. In other words, if we didn't have a magnetic field, the Earth would probably look like a red wasteland, and it's unlikely that life would have evolved as much on our planet.

Moreover, this shielding effect deflects charged particles from the solar wind and prevents malfunctions on orbiting satellites important for GPS navigation, communications, and meteorology.

Current magnetic north and magnetic south are close to the geographic poles. Since direct observations began in the 19th century, scientists have observed that the field's strength has weakened by about 5 percent every 100 years, at least for the last two millennia.

Of particular interest is the "South Atlantic Anomaly" - an inexplicably weak part of the field where charged particles are strongly deflected and can cause serious damage to satellites.

The team decided to study several different periods of the magnetic field. Although the current anomaly in the South Atlantic is strange, the magnetic field at 49,000 and 46,000 years was similar without any extreme events. In all cases, after the anomalies, the field was stabilized by strong poles over several thousand years.

So, it is unlikely that we will see a polar reversal. "The overall finding is consistent with other recent studies that show that the current decline in field strength is not caused by an accelerated field shift," says Maund. "The field strength fluctuates quite a bit over time, and there is nothing unusual about the relationship between the current strength and the rate of change."

Phil Livermore, a geophysicist at the University of Leeds, is a bit optimistic. He points out that there is no new evidence that the current weakening will end, especially since we still don't know what causes it.

While the history of the magnetic field provides useful insight into how it works and behaves, none of this research actually helps us predict the future. They just point out the large number of options.

Should we worry? Kurgan doesn't think: "The rate of change is slow enough that we can soften the blows." But he cautions that we don't know enough about what exactly those impacts will be.