Poles of the earth. Earth's Pole Animals of the North and South Pole

"The probability of a change in the Earth's magnetic poles in the near future. Research into the detailed physical reasons for this process.

I once watched a popular science film on this issue, filmed 6-7 years ago.
It provided data on the appearance of an anomalous area in the southern part of the Atlantic Ocean - a change in polarity and weak tension. It seems that when satellites fly over this territory, they have to be turned off so that the electronics do not deteriorate.

And in terms of time, it seems like this process should happen.It also talked about the European Space Agency's plans to launch a series of satellites to study in detail the strength of the Earth's magnetic field. Maybe they have already published the data from this study, if they managed to launch satellites on this matter?”

The Earth's magnetic poles are part of our planet's magnetic (geomagnetic) field, which is generated by flows of molten iron and nickel surrounding the Earth's inner core (in other words, turbulent convection in the Earth's outer core generates the geomagnetic field). The behavior of the Earth's magnetic field is explained by the flow of liquid metals at the boundary of the earth's core and the mantle.

In 1600, the English scientist William Gilbert in his book “On the Magnet, Magnetic Bodies and the Great Magnet - the Earth”. presented the Earth as a giant permanent magnet, the axis of which does not coincide with the axis of rotation of the Earth (the angle between these axes is called magnetic declination).

In 1702, E. Halley created the first magnetic maps of the Earth. The main reason for the presence of the Earth's magnetic field is that the Earth's core consists of hot iron (a good conductor of electrical currents arising within the Earth).

The Earth's magnetic field forms a magnetosphere, extending 70-80 thousand km in the direction of the Sun. It shields the Earth's surface, protects against the harmful effects of charged particles, high energies and cosmic rays, and determines the nature of the weather.

Back in 1635, Gellibrand established that the Earth's magnetic field was changing. It was later discovered that there are permanent and short-term changes in the Earth's magnetic field.

The reason for the constant changes is the presence of mineral deposits. There are areas on Earth where its own magnetic field is greatly distorted by the occurrence of iron ores. For example, the Kursk magnetic anomaly, located in the Kursk region.

The reason for short-term changes in the Earth's magnetic field is the action of the "solar wind", i.e. the action of a stream of charged particles emitted by the Sun. The magnetic field of this flow interacts with the Earth's magnetic field, and "magnetic storms" arise. The frequency and strength of magnetic storms is affected by solar activity.

During the years of maximum solar activity (once every 11.5 years), such magnetic storms occur that radio communications are disrupted, and compass needles begin to “dance” unpredictably.

The result of the interaction of charged particles of the “solar wind” with the Earth’s atmosphere in northern latitudes is the phenomenon of “aurora.”

The change of the Earth's magnetic poles (magnetic field inversion, English geomagnetic reversal) occurs every 11.5-12.5 thousand years. Other figures are also mentioned - 13,000 years and even 500 thousand years or more, and the last inversion occurred 780,000 years ago. Apparently, the reversal of the Earth's Magnetic Field is a non-periodic phenomenon. Throughout the geological history of our planet, the Earth's magnetic field has changed its polarity more than 100 times.

The cycle of changing the Earth's poles (associated with planet Earth itself) can be classified as a global cycle (along with, for example, the cycle of fluctuation of the precession axis), which influences everything that happens on Earth...

A legitimate question arises: when to expect a change in the Earth’s magnetic poles (inversion of the planet’s magnetic field), or a shift of the poles to a “critical” angle (according to some theories to the equator)?..

The process of shifting magnetic poles has been recorded for more than a century. The North and South Magnetic Poles (NSM and SMP) are constantly “migrating”, moving away from the geographic poles of the Earth (the “error” angle is now about 8 degrees in latitude for the NMP and 27 degrees for the SMP). By the way, it was found that the Earth's geographic poles also move: the planet's axis deviates at a speed of about 10 cm per year.

The magnetic north pole was first discovered in 1831. In 1904, when scientists took measurements again, it was discovered that the pole had moved 31 miles. The compass needle points to the magnetic pole, not the geographic pole. The study showed that over the last thousand years, the magnetic pole has moved significant distances from Canada to Siberia, but sometimes in other directions.

The Earth's magnetic north pole does not sit still. However, like the south. The northern one “wandered” around Arctic Canada for a long time, but since the 70s of the last century its movement has acquired a clear direction. With an increasing speed, now reaching 46 km per year, the pole is rushing almost in a straight line into the Russian Arctic. According to the Canadian Geomagnetic Survey, by 2050 it will be located in the Severnaya Zemlya archipelago.

The rapid reversal of the poles is indicated by the weakening of the Earth's magnetic field near the poles, which was established in 2002 by the French professor of geophysics Gauthier Hulot. By the way, the Earth's magnetic field has weakened by almost 10% since it was first measured in the 30s of the 19th century. Fact: In 1989, residents of Quebec (Canada) were left without power for 9 hours when solar winds broke through a weak magnetic shield and caused severe breakdowns in electrical networks.

From a school physics course we know that electric current heats the conductor through which it flows. In this case, the movement of charges will heat the ionosphere. Particles will penetrate into the neutral atmosphere, this will affect the wind system at an altitude of 200-400 km, and therefore the climate as a whole. The displacement of the magnetic pole will also affect the operation of equipment. For example, in mid-latitudes during the summer months it will be impossible to use shortwave radio communications. The operation of satellite navigation systems will also be disrupted, since they use ionospheric models that will not be applicable in the new conditions. Geophysicists also warn that induced currents in Russian power lines and grids will increase as the magnetic north pole approaches.

However, all this may not happen. The north magnetic pole can change direction or stop at any moment, and this cannot be foreseen. And for the South Pole there is no forecast at all for 2050. Until 1986, he moved very vigorously, but then his speed dropped.

So, here are four facts that indicate an approaching or already begun geomagnetic field reversal:
1. A decrease in geomagnetic field strength over the past 2.5 thousand years;
2. Acceleration of the decline in field strength in recent decades;
3. Sharp acceleration of the magnetic pole displacement;
4. Features of the distribution of magnetic field lines, which becomes similar to the picture corresponding to the stage of inversion preparation.

There is a wide debate about the possible consequences of the change in geomagnetic poles. There are a variety of points of view - from quite optimistic to extremely alarming. Optimists point to the fact that hundreds of reversals have occurred in Earth's geological history, but mass extinctions and natural disasters have not been linked to these events. In addition, the biosphere has significant adaptability, and the inversion process can last quite a long time, so there is more than enough time to prepare for the changes.

The opposite point of view does not exclude the possibility that an inversion may occur within the lifetime of the next generations and will prove to be a disaster for human civilization. It must be said that this point of view is largely compromised by a large number of unscientific and simply anti-scientific statements. As an example, it is believed that during the inversion, human brains will experience a reboot, similar to what happens with computers, and the information contained in them will be completely erased. Despite such statements, the optimistic point of view is very superficial.

The modern world is far from what it was hundreds of thousands of years ago: man has created many problems that have made this world fragile, easily vulnerable and extremely unstable. There is reason to believe that the consequences of the inversion will indeed be truly catastrophic for world civilization. And the complete loss of functionality of the World Wide Web due to the destruction of radio communication systems (and this will certainly occur at the time of the loss of radiation belts) is just one example of a global catastrophe. For example, due to the destruction of radio communication systems, all satellites will fail.

An interesting aspect of the impact of geomagnetic inversion on our planet, associated with a change in the configuration of the magnetosphere, is considered in his recent works by Professor V.P. Shcherbakov from the Borok Geophysical Observatory. In the normal state, due to the fact that the axis of the geomagnetic dipole is oriented approximately along the Earth's rotation axis, the magnetosphere serves as an effective screen for high-energy flows of charged particles moving from the Sun. During an inversion, it is quite possible that a funnel will form in the frontal subsolar part of the magnetosphere in the region of low latitudes, through which solar plasma can reach the Earth’s surface. Due to the rotation of the Earth in each specific place of low and partly moderate latitudes, this situation will repeat every day for several hours. That is, a significant part of the planet’s surface will experience a strong radiation impact every 24 hours.

However, NASA scientists suggest that the pole reversal could briefly deprive Earth of the magnetic field that protects us from solar flares and other cosmic hazards. However, the magnetic field may weaken or strengthen over time, but there is no indication that it will disappear completely. A weaker field will of course lead to a slight increase in solar radiation on Earth, as well as the observation of beautiful auroras at lower latitudes. But nothing fatal will happen, and the dense atmosphere perfectly protects the Earth from dangerous solar particles.

Science proves that pole reversal is, from the point of view of the geological history of the Earth, a common phenomenon that occurs gradually over millennia.

The geographic poles are also constantly shifting across the Earth's surface. But these shifts occur slowly and are natural. The axis of our planet, rotating like a top, describes a cone around the pole of the ecliptic with a period of about 26 thousand years; in accordance with the migration of geographical poles, gradual climate changes occur. They are caused mainly by the displacement of ocean currents that transfer heat to the continents. Another thing is unexpected, sharp “somersaults” of the poles. But the rotating Earth is a gyroscope with a very impressive angular momentum, in other words, it is an inertial object. resisting attempts to change the characteristics of its movement. A sudden change in the tilt of the Earth’s axis, and especially its “somersault,” cannot be caused by internal slow movements of magma or gravitational interaction with any passing cosmic body.

Such an overturning moment can only occur with a tangential impact from an asteroid with a size of at least 1000 kilometers in diameter, approaching the Earth at a speed of 100 km/sec. A more real threat to the life of mankind and the entire living world of the Earth appears to be a change in the geomagnetic poles. The magnetic field of our planet that is observed today is very similar to that which would be created by a giant bar magnet placed in the center of the Earth, oriented along a north-south line. More precisely, it must be installed so that its North magnetic pole is directed to the South geographic pole, and the South magnetic pole is directed to the North geographic pole.

However, this situation is not permanent. Research over the last four hundred years has shown that the magnetic poles rotate around their geographic counterparts, shifting about twelve degrees every century. This value corresponds to current speeds in the upper core of ten to thirty kilometers per year. In addition to gradual shifts of the magnetic poles approximately every five hundred thousand years, the Earth’s magnetic poles change places. The study of paleomagnetic characteristics of rocks of different ages allowed scientists to conclude that the time of such magnetic pole reversals took at least five thousand years. A complete surprise for scientists studying life on Earth were the results of an analysis of the magnetic properties of a kilometer-thick lava flow that erupted 16.2 million years ago and was recently found in the eastern Oregon Desert.

Her research, conducted by Rob Cowie of the University of California, Santa Cruz, and Michel Privota of the University of Montpelier, created a sensation in geophysics. The obtained results of the magnetic properties of volcanic rock objectively showed that the lower layer froze when the pole was in one position, the core of the flow - when the pole moved, and, finally, the upper layer - at the opposite pole. And all this happened in thirteen days. The Oregon discovery suggests that the Earth's magnetic poles may change places not within several thousand years, but in just two weeks. The last time this happened was about seven hundred and eighty thousand years ago. But how can this threaten us all? Now the magnetosphere envelops the Earth at an altitude of sixty thousand kilometers and serves as a kind of shield in the path of the solar wind. If a pole change occurs, the magnetic field during the inversion will decrease by 80-90%. Such a drastic change will certainly affect various technical devices, the animal world and, of course, humans.

True, the inhabitants of the Earth should be somewhat reassured by the fact that during the reversal of the Sun’s poles, which occurred in March 2001, no disappearance of the magnetic field was recorded.

Consequently, the complete disappearance of the Earth's protective layer will most likely not occur. A reversal of the magnetic poles cannot become a global catastrophe. The very presence of life on Earth, which has experienced inversion many times, confirms this, although the absence of a magnetic field is an unfavorable factor for the animal world. This was clearly demonstrated by the experiments of American scientists, who built two experimental chambers back in the sixties. One of them was surrounded by a powerful metal screen, which reduced the strength of the earth's magnetic field hundreds of times. In another chamber, earthly conditions were preserved. Mice and seeds of clover and wheat were placed in them. A few months later, it turned out that the mice in the screened chamber lost hair faster and died earlier than the control ones. Their skin was thicker than that of animals of the other group. And when it swells, it displaces the root sacs of the hair, which causes early baldness. Changes were also noted in plants in the magnetic-free chamber.

It will also be difficult for those representatives of the animal kingdom, for example, migratory birds, which have a kind of built-in compass and use magnetic poles for orientation. But, judging by the deposits, mass extinction of species during the reversal of magnetic poles has not occurred before. It will not happen, apparently, in the future. After all, even despite the enormous speed of movement of the poles, birds cannot keep up with them. Moreover, many animals, such as bees, orient themselves by the Sun, and migrating marine animals use more of the magnetic field of rocks on the ocean floor than the global one. Navigation systems and communication systems created by people will be subjected to serious tests that could render them inoperable. It will be very bad for many compasses - they will simply have to be thrown away. But when the poles change, there may also be “positive” effects - huge northern lights will be observed throughout the Earth - however, for only two weeks.

Well, now some theories about the mysteries of civilizations :-) Some people take this quite seriously...

According to another hypothesis, we live in a unique time: a change of poles is taking place on Earth and a quantum transition of our planet to its twin, located in a parallel world of four-dimensional space, is taking place. To reduce the consequences of a planetary catastrophe, Higher Civilizations (HCs) carry out this transition smoothly in order to create favorable conditions for the emergence of a new branch of the Supercivilization of God-Humanity. Representatives of the EC believe that the old branch of Humanity is not intelligent, since over the past decades, at least five times, it could have destroyed all life on the planet if not for the timely intervention of the EC.

Today, among scientists, there is no consensus as to how long the process of pole reversal may last. According to one version, this will take several thousand years, during which the Earth will be defenseless against solar radiation. According to another, it will take only a few weeks to change the poles. But the date of the Apocalypse, according to some scientists, is suggested to us by the ancient Mayan and Atlantean peoples - 2050.

In 1996, the American popularizer of science S. Runcorn concluded that the axis of rotation has moved more than once in the geological history of the Earth along with the magnetic field. He suggests that the last geomagnetic reversal occurred around 10,450 BC. e. This is precisely what the Atlanteans who survived the flood told us about, sending their message to the future. They knew about the regular periodic reversal of the polarity of the Earth's poles approximately every 12,500 years. If by 10450 BC. e. add 12,500 years, then again you get 2050 AD. e. - the year of the next giant natural disaster. Experts calculated this date while solving the location of three Egyptian pyramids in the Nile Valley - Cheops, Khafre and Mikerin.

Russian scientists believe that the wisest Atlanteans led us to knowledge about the periodic change in the polarity of the Earth's poles through knowledge of the laws of precession, which are inherent in the location of these three pyramids. The Atlanteans, apparently, were completely confident that someday in their distant future a new highly developed civilization would appear on Earth, and its representatives would rediscover the laws of precession.

According to one hypothesis, it was the Atlanteans who most likely led the construction of the three largest pyramids in the Nile Valley. All of them are built at 30 degrees north latitude and oriented to the cardinal points. Each face of the structure is aimed north, south, west or east. There is no other structure on Earth known that would be so accurately oriented to the cardinal directions with an error of only 0.015 degrees. Since the ancient builders achieved their goal, it means that they had the appropriate qualifications, knowledge, first-class equipment and instruments.

Let's move on. The pyramids are installed on the cardinal points with a deviation of three minutes and six seconds from the meridian. And the numbers 30 and 36 are signs of the precession code! 30 degrees of the celestial horizon correspond to one sign of the Zodiac, 36 is the number of years during which the sky picture shifts by half a degree.

Scientists also established certain patterns and coincidences associated with the size of the pyramid, the angles of inclination of their internal galleries, the angle of increase of the spiral staircase of the DNA molecule, a twisted spiral, etc., etc. Therefore, the scientists decided, the Atlanteans had everything available to them ways they pointed us to a strictly defined date, which coincided with an extremely rare astronomical phenomenon. It repeats once every 25,921 years. At that moment, the three stars of Orion's Belt were at their lowest precessional position above the horizon on the day of the vernal equinox. This was in 10,450 BC. e. This is how the ancient sages intensively led humanity to this date through mythological codes, through a map of the starry sky drawn in the Nile Valley with the help of three pyramids.

And so in 1993, the Belgian scientist R. Beauval used the laws of precession. Through computer analysis, he revealed that the three largest Egyptian pyramids were installed on the ground in the same way as the three stars of Orion’s Belt were located in the sky in 10,450 BC. e., when they were at the lower, that is, the starting point of their precessional movement across the sky.

Modern geomagnetic studies have shown that around 10450 BC. e. There was an instant change in the polarity of the Earth's poles and the eye shifted 30 degrees relative to its axis of rotation. As a result, a planet-wide global instant cataclysm occurred. Geomagnetic studies conducted in the late 1980s by American, British and Japanese scientists showed something else. These nightmarish cataclysms have occurred continuously throughout the geological history of the Earth with a regularity of approximately 12,500 years! It was they who, obviously, destroyed the dinosaurs, the mammoths, and Atlantis.

Survivors of the previous flood in 10,450 BC. e. and the Atlanteans who sent us their message through the pyramids really hoped that a new highly developed civilization would appear on Earth long before total horror and the end of the world. And maybe he will have time to prepare to meet the disaster fully armed. According to one of the hypotheses, their science failed to make a discovery about the obligatory “somersault” of the planet by 30 degrees at the moment of polarity reversal. As a result, all the continents of the Earth shifted by exactly 30 degrees and Atlantis found itself at the South Pole. And then its entire population instantly froze, just as the mammoths froze instantly at the same moment on the other side of the planet. Only those representatives of the highly developed Atlantic civilization who were at that time on other continents of the planet in the highlands survived. They were lucky to escape the Great Flood. And so they decided to warn us, people of the distant future for them, that each change of poles is accompanied by a “somersault” of the planet and irreparable consequences.

In 1995, new additional studies were carried out using modern instruments created specifically for research of this kind. Scientists managed to make the most important clarification in the forecast of the upcoming polarity reversal and more accurately indicate the date of the terrible event - 2030.

The American scientist G. Hancock calls the date of the universal end of the world even closer - 2012. He bases his assumption on one of the calendars of the South American Mayan civilization. According to the scientist, the calendar may have been inherited by the Indians from the Atlanteans.

So, according to the Mayan Long Count, our world is cyclically created and destroyed with a period of 13 baktuns (or approximately 5120 years). The current cycle began on August 11, 3113 BC. e. (0.0.0.0.0) and will end on December 21, 2012. e. (13.0.0.0.0). The Mayans believed that the world would end on this day. And after this, if you believe them, there will come the beginning of a new cycle and the beginning of a new World.

According to other paleomagnetologists, a change in the Earth's magnetic poles is about to happen. But not in the common sense - tomorrow, the day after tomorrow. Some researchers call one thousand years, others - two thousand. Then the End of the World, the Last Judgment, the Great Flood, which is described in the Apocalypse, will come.

But humanity was already predicted to end the world in 2000. But life still goes on - and it is beautiful!

sources
http://2012god.ru/forum/forum-37/topic-338/page-1/
http://www.planet-x.net.ua/earth/earth_priroda_polusa.html
http://paranormal-news.ru/news/2008-11-01-991
http://kosmosnov.blogspot.ru/2011/12/blog-post_07.html
http://kopilka-erudita.ru

According to modern ideas, it was formed approximately 4.5 billion years ago, and from that moment our planet has been surrounded by a magnetic field. Everything on Earth, including people, animals and plants, is affected by it.

The magnetic field extends to an altitude of about 100,000 km (Fig. 1). It deflects or captures solar wind particles that are harmful to all living organisms. These charged particles form the Earth's radiation belt, and the entire region of near-Earth space in which they are located is called magnetosphere(Fig. 2). On the side of the Earth illuminated by the Sun, the magnetosphere is limited by a spherical surface with a radius of approximately 10-15 Earth radii, and on the opposite side it is extended like a comet's tail over a distance of up to several thousand Earth radii, forming a geomagnetic tail. The magnetosphere is separated from the interplanetary field by a transition region.

Earth's magnetic poles

The axis of the earth's magnet is inclined relative to the earth's rotation axis by 12°. It is located approximately 400 km away from the center of the Earth. The points at which this axis intersects the surface of the planet are magnetic poles. The Earth's magnetic poles do not coincide with the true geographic poles. Currently, the coordinates of the magnetic poles are as follows: north - 77° north latitude. and 102°W; southern - (65° S and 139° E).

Rice. 1. The structure of the Earth’s magnetic field

Rice. 2. Structure of the magnetosphere

Lines of force running from one magnetic pole to another are called magnetic meridians. An angle is formed between the magnetic and geographic meridians, called magnetic declination. Every place on Earth has its own declination angle. In the Moscow region the declination angle is 7° to the east, and in Yakutsk it is about 17° to the west. This means that the northern end of the compass needle in Moscow deviates by T to the right of the geographic meridian passing through Moscow, and in Yakutsk - by 17° to the left of the corresponding meridian.

A freely suspended magnetic needle is located horizontally only on the line of the magnetic equator, which does not coincide with the geographical one. If you move north of the magnetic equator, the northern end of the needle will gradually descend. The angle formed by a magnetic needle and a horizontal plane is called magnetic inclination. At the North and South magnetic poles, the magnetic inclination is greatest. It is equal to 90°. At the North Magnetic Pole, a freely suspended magnetic needle will be installed vertically with its northern end down, and at the South Magnetic Pole its southern end will go down. Thus, the magnetic needle shows the direction of the magnetic field lines above the earth's surface.

Over time, the position of the magnetic poles relative to the earth's surface changes.

The magnetic pole was discovered by explorer James C. Ross in 1831, hundreds of kilometers from its current location. On average, it moves 15 km in one year. In recent years, the speed of movement of the magnetic poles has increased sharply. For example, the North Magnetic Pole is currently moving at a speed of about 40 km per year.

The reversal of the Earth's magnetic poles is called magnetic field inversion.

Throughout the geological history of our planet, the Earth's magnetic field has changed its polarity more than 100 times.

The magnetic field is characterized by intensity. In some places on Earth, magnetic field lines deviate from the normal field, forming anomalies. For example, in the area of the Kursk Magnetic Anomaly (KMA), the field strength is four times higher than normal.

There are daily variations in the Earth's magnetic field. The reason for these changes in the Earth's magnetic field is electric currents flowing in the atmosphere at high altitudes. They are caused by solar radiation. Under the influence of the solar wind, the Earth's magnetic field is distorted and acquires a “trail” in the direction from the Sun, which extends for hundreds of thousands of kilometers. The main cause of the solar wind, as we already know, is the enormous ejections of matter from the solar corona. As they move towards the Earth, they turn into magnetic clouds and lead to strong, sometimes extreme disturbances on the Earth. Particularly strong disturbances of the Earth's magnetic field - magnetic storms. Some magnetic storms begin suddenly and almost simultaneously across the entire Earth, while others develop gradually. They can last for several hours or even days. Magnetic storms often occur 1-2 days after a solar flare due to the Earth passing through a stream of particles ejected by the Sun. Based on the delay time, the speed of such a corpuscular flow is estimated at several million km/h.

During strong magnetic storms, the normal operation of the telegraph, telephone and radio is disrupted.

Magnetic storms are often observed at latitude 66-67° (in the aurora zone) and occur simultaneously with auroras.

The structure of the Earth's magnetic field varies depending on the latitude of the area. The permeability of the magnetic field increases towards the poles. Over the polar regions, the magnetic field lines are more or less perpendicular to the earth's surface and have a funnel-shaped configuration. Through them, part of the solar wind from the dayside penetrates into the magnetosphere and then into the upper atmosphere. During magnetic storms, particles from the tail of the magnetosphere rush here, reaching the boundaries of the upper atmosphere in the high latitudes of the Northern and Southern Hemispheres. It is these charged particles that cause the auroras here.

So, magnetic storms and daily changes in the magnetic field are explained, as we have already found out, by solar radiation. But what is the main reason that creates the permanent magnetism of the Earth? Theoretically, it was possible to prove that 99% of the Earth’s magnetic field is caused by sources hidden inside the planet. The main magnetic field is caused by sources located in the depths of the Earth. They can be roughly divided into two groups. The main part of them is associated with processes in the earth's core, where, due to continuous and regular movements of electrically conductive matter, a system of electric currents is created. The other is due to the fact that the rocks of the earth’s crust, when magnetized by the main electric field (the field of the core), create their own magnetic field, which is summed with the magnetic field of the core.

In addition to the magnetic field around the Earth, there are other fields: a) gravitational; b) electric; c) thermal.

Gravitational field The earth is called the gravity field. It is directed along a plumb line perpendicular to the surface of the geoid. If the Earth had the shape of an ellipsoid of revolution and masses were evenly distributed in it, then it would have a normal gravitational field. The difference between the intensity of the real gravitational field and the theoretical one is a gravity anomaly. Different material composition and density of rocks cause these anomalies. But other reasons are also possible. They can be explained by the following process - the equilibrium of the solid and relatively light earth's crust on the heavier upper mantle, where the pressure of the overlying layers is equalized. These currents cause tectonic deformations, the movement of lithospheric plates and thereby create the macrorelief of the Earth. Gravity holds the atmosphere, hydrosphere, people, animals on Earth. Gravity must be taken into account when studying processes in the geographic envelope. The term " geotropism" are the growth movements of plant organs, which, under the influence of the force of gravity, always ensure the vertical direction of growth of the primary root perpendicular to the surface of the Earth. Gravity biology uses plants as experimental subjects.

If gravity is not taken into account, it is impossible to calculate the initial data for launching rockets and spacecraft, to carry out gravimetric exploration of ore deposits, and, finally, the further development of astronomy, physics and other sciences is impossible.

The polar regions of the Earth are the harshest places on our planet.

For centuries, people have tried at the cost of life and health to reach and explore the Northern and Southern Arctic Circle.

So what have we learned about the two opposite poles of the Earth?

1. Where is the North and South Pole: 4 types of poles

There are actually 4 types of North Pole from a scientific point of view:

The magnetic north pole is the point on the earth's surface towards which magnetic compasses are directed.

North geographic pole – located directly above the geographic axis of the Earth

North geomagnetic pole – connected to the Earth's magnetic axis

The North Pole of Inaccessibility is the northernmost point in the Arctic Ocean and the farthest from land on all sides.

Similarly, 4 types of the South Pole were established:

South magnetic pole - a point on the earth's surface at which the earth's magnetic field is directed upward

South geographic pole - a point located above the geographic axis of rotation of the Earth

South geomagnetic pole - associated with the Earth's magnetic axis in the southern hemisphere

The South Pole of Inaccessibility is the point in Antarctica that is farthest from the coast of the Southern Ocean.

In addition, there is a ceremonial south pole - an area designated for photography at Amundsen-Scott Station. It is located a few meters from the geographic south pole, but since the ice sheet is constantly moving, the mark shifts every year by 10 meters.

2. Geographic North and South Pole: ocean versus continent

The North Pole is essentially a frozen ocean surrounded by continents. In contrast, the South Pole is a continent surrounded by oceans.

In addition to the Arctic Ocean, the Arctic region (North Pole) includes parts of Canada, Greenland, Russia, the USA, Iceland, Norway, Sweden and Finland.

The southernmost point of the earth, Antarctica is the fifth largest continent, with an area of 14 million square kilometers. km, 98 percent of which is covered by glaciers. It is surrounded by the South Pacific Ocean, the South Atlantic Ocean and the Indian Ocean.

Geographic coordinates of the North Pole: 90 degrees north latitude.

Geographic coordinates of the South Pole: 90 degrees south latitude.

All lines of longitude converge at both poles.

3. The South Pole is colder than the North Pole

The South Pole is much colder than the North Pole. The temperature in Antarctica (South Pole) is so low that in some places on this continent the snow never melts.

The average annual temperature in this area is -58 degrees Celsius in winter, and the highest temperature recorded here was in 2011 at -12.3 degrees Celsius.

In contrast, the average annual temperature in the Arctic region (North Pole) is -43 degrees Celsius in winter and about 0 degrees in summer.

There are several reasons why the South Pole is colder than the North Pole. Since Antarctica is a huge landmass, it receives little heat from the ocean. In contrast, the ice in the Arctic region is relatively thin and there is an entire ocean underneath, which moderates the temperature. In addition, Antarctica is located at an altitude of 2.3 km and the air here is colder than in the Arctic Ocean, which is at sea level.

4. There is no time at the poles

Time is determined by longitude. So, for example, when the Sun is directly above us, local time shows noon. However, at the poles all lines of longitude intersect, and the Sun rises and sets only once a year on the equinoxes.

For this reason, scientists and explorers at the poles use whatever time zone they prefer. Typically, they refer to Greenwich Mean Time or the time zone of the country they are coming from.

Scientists at Amundsen-Scott Station in Antarctica can make a quick run around the world, crossing 24 time zones in a few minutes.

5. Animals of the North and South Pole

Many people have the misconception that polar bears and penguins share the same habitat.

In fact, penguins live only in the southern hemisphere - in Antarctica, where they have no natural enemies. If polar bears and penguins lived in the same area, the polar bears would not have to worry about their food source.

Marine animals at the South Pole include whales, porpoises and seals.

Polar bears, in turn, are the largest predators in the northern hemisphere. They live in the northern part of the Arctic Ocean and feed on seals, walruses and sometimes even beached whales.

In addition, the North Pole is home to animals such as reindeer, lemmings, foxes, wolves, as well as marine animals: beluga whales, killer whales, sea otters, seals, walruses and more than 400 known species of fish.

6. No Man's Land

Despite the fact that many flags of different countries can be seen at the South Pole in Antarctica, it is the only place on earth that does not belong to anyone and does not have an indigenous population.

The Antarctic Treaty is in force here, according to which the territory and its resources must be used exclusively for peaceful and scientific purposes. Scientists, explorers and geologists are the only people who set foot on Antarctica from time to time.

In contrast, more than 4 million people live in the Arctic Circle in Alaska, Canada, Greenland, Scandinavia and Russia.

7. Polar night and polar day

The Earth's poles are unique places where the longest day is observed, which lasts 178 days, and the longest night, which lasts 187 days.

At the poles there is only one sunrise and one sunset per year. At the North Pole, the Sun begins to rise in March on the vernal equinox and descends in September on the autumn equinox. At the South Pole, on the contrary, sunrise is during the autumn equinox, and sunset is on the day of the spring equinox.

In summer, the Sun is always above the horizon here, and the South Pole receives sunlight around the clock. In winter, the Sun is below the horizon, when there is 24-hour darkness.

8. Conquerors of the North and South Pole

Many travelers tried to reach the poles of the Earth, losing their lives on the way to these extreme points of our planet.

Who was the first to reach the North Pole?

There have been several expeditions to the North Pole since the 18th century. There is disagreement over who was the first to reach the North Pole. In 1908, American explorer Frederick Cook became the first to claim to have reached the North Pole. But his compatriot Robert Peary refuted this statement, and on April 6, 1909, he was officially considered the first conqueror of the North Pole.

First flight over the North Pole: Norwegian traveler Roald Amundsen and Umberto Nobile on May 12, 1926 on the airship "Norway"

First submarine at the North Pole: nuclear submarine Nautilus on August 3, 1956

First trip to the North Pole alone: Japanese Naomi Uemura, April 29, 1978, traveling 725 km by dog sled in 57 days

The first ski expedition: expedition of Dmitry Shparo, May 31, 1979. Participants covered 1,500 km in 77 days.

Lewis Gordon Pugh was the first to swim across the North Pole: he swam 1 km in water with a temperature of -2 degrees Celsius in July 2007.

Who was the first to reach the South Pole?

The first conquerors of the South Pole were the Norwegian explorer Roald Amundsen and the British explorer Robert Scott, after whom the first station at the South Pole, the Amundsen-Scott station, was named. Both teams took different routes and reached the South Pole within a few weeks of each other, first by Amundsen on December 14, 1911, and then by R. Scott on January 17, 1912.

First flight over the South Pole: American Richard Byrd, in 1928

The first to cross Antarctica without the use of animals or mechanical transport: Arvid Fuchs and Reinold Meissner, December 30, 1989

9. North and South magnetic poles of the Earth

The Earth's magnetic poles are associated with the Earth's magnetic field. They are located in the north and south, but do not coincide with the geographic poles, since the magnetic field of our planet is changing. Unlike geographic poles, magnetic poles shift.

The magnetic north pole is not located exactly in the Arctic region, but moves east at a speed of 10-40 km per year, as the magnetic field is influenced by underground molten metals and charged particles from the Sun. The south magnetic pole is still in Antarctica, but it is also moving west at a speed of 10-15 km per year.

Some scientists believe that one day the magnetic poles may change, and this could lead to the destruction of the Earth. However, the change of magnetic poles has already occurred, hundreds of times over the past 3 billion years, and this did not lead to any dire consequences.

10. Melting ice at the poles

Arctic ice in the North Pole region typically melts in the summer and freezes again in the winter. However, in recent years, the ice cap has begun to melt at a very rapid pace.

Many researchers believe that by the end of the century, and maybe in a few decades, the Arctic zone will remain ice-free.

On the other hand, the Antarctic region at the South Pole contains 90 percent of the world's ice. The ice thickness in Antarctica averages 2.1 km. If all the ice in Antarctica melted, sea levels around the world would rise by 61 meters.

Fortunately, this will not happen in the near future.

Some fun facts about the North and South Pole:

1. There is an annual tradition at Amundsen-Scott Station at the South Pole. After the last supply plane leaves, the researchers watch two horror films: The Thing (about an alien creature that kills the inhabitants of a polar station in Antarctica) and The Shining (about a writer who is in an empty, remote hotel in winter).

2. Every year the polar tern bird makes a record flight from the Arctic to Antarctica, flying more than 70,000 km.

3. Kaffeklubben Island - a small island in northern Greenland is considered the piece of land that is closest to the North Pole, 707 km from it.

EARTH POLE

(Pole) - the point of intersection of the imaginary axis of rotation of the Earth with its surface.

Samoilov K. I. Marine Dictionary. - M.-L.: State Naval Publishing House of the NKVMF of the USSR, 1941

See what "EARTH'S POLE" is in other dictionaries:

Earth's magnetic pole- magnetinis Žemės polius statusas T sritis fizika atitikmenys: engl. earth magnetic pole; terrestrial magnetic pole vok. erdmagnetischer Pol, m; magnetischer Erdpol, m rus. geomagnetic pole, m; Earth's magnetic pole, m pranc. pôle magnétique de… … Fizikos terminų žodynas

Earth's magnetic pole- A point on the earth's surface where the magnetic field is directed perpendicular to the earth's surface... Dictionary of Geography

earth's magnetic pole- A point on the earth's surface at which the inclination of the main magnetic field is 90°. Note The location of the pole changes over time. [GOST 24284 80] Topics: gravity and magnetic prospecting... Technical Translator's Guide

- (from the Greek polos, the limb of the axis on which the wheel rotates). The tip of the imaginary earth's axis: the south and north poles. Dictionary of foreign words included in the Russian language. Chudinov A.N., 1910. POLE 1) the extremity of the axis of the globe; 2)… … Dictionary of foreign words of the Russian language

Literally an axis, a pole. The Earth's pole is the world axis, the cosmic center, the point of rest. Signifies a stabilizing force and can take on the symbolic meaning of the Tree of Life. In addition, it carries symbolism of the phallus, childbirth and fertility. The American... Dictionary of symbols

This is the point that is most difficult to reach due to its distance from populated areas. The term describes a geographical point, but not a physical phenomenon, and is of interest more to travelers. Contents 1 North Pole of Inaccessibility 2 ... Wikipedia

Pole (Latin polus, from Greek pólos, literally axis), in the broad sense of the word: limit, boundary, extreme point of something; something diametrically opposed to the other (two poles). More specific meanings: Geographic poles of the point of intersection... ... Wikipedia

POLE, poles, husband. (Greek polos, lit. axis). 1. One of two imaginary points of intersection of the earth's surface with its axis of rotation. North Pole. South Pole. Papanin and his companions traveled on a drifting ice floe from the North Pole to... ... Ushakov's Explanatory Dictionary

POLE- (1) a special, highest, extreme point of something; (2) Geographical point (North and South) is the imaginary point of intersection of the Earth’s rotation axis with the earth’s surface. Geographical points are the only points on the earth’s surface that do not participate in the daily cycle... ... Big Polytechnic Encyclopedia

POLE, a, pl. s, ov and a, ov, husband. 1. One of the two points of intersection of the Earth’s rotation axis with the earth’s surface, as well as the terrain adjacent to this point. Geographical poles. Northern p. Southern p. 2. One of the two ends of the electrical circuit or... ... Ozhegov's Explanatory Dictionary

Books

On big ice. The North Pole, R. E. Peary. This volume of the popular Great Voyages series includes two wonderful books by Robert Edwin Peary - Over the Great Ice to the North and The North Pole. In the first of them, an outstanding...
My life. South Pole, Roald Amundsen. There is no such thing as a boring or safe trip. The discovery of America, India, Australia, and the exploration of Africa required incredible effort and many human sacrifices. But the achievement...