Poles of the Earth
Geographical poles of the earth are the points of Earth where the axis of rotation intersects its surface.
First of all, the South Pole is also known as the Geographic South Pole. This is one of the two points where Earth’s Axis of rotation intersects its surface. Furthermore, it is on the opposite side of Earth from the North. It is the southernmost point on the surface of Earth.
Although land at the South Pole is only about a hundred meters above sea level, on the other hand, the ice sheet above it is roughly 2,700 meters (9,000 feet) thick. It is situated on the continent of Antarctica.
Following are its four types:
Geographic South Pole:
The South Pole is also known as the Geographic South Pole or Terrestrial South Pole. There is one of the two points where Earth’s Axis of rotation intersects its surface. Americans have occupied the geographic South Pole continuously since November 1956. It is located in Antarctica.
The station stands at an elevation of 2,835 meters (9,306 feet) on Antarctica’s nearly featureless ice sheet, which is about 2,700 meters (9,000 feet) thick at that location. In other words, all directions face north at this pole.
Most importantly, directions point northward along the prime meridian. Along with tight latitude circles, clockwise is east, and anti-clockwise is west, opposite to the North Pole. As long as, the true south geographic pole is located near Amundsen-Scott South Pole Station there are many markers at this site representing the movement of the true geographic pole over the years.
South Magnetic Pole:
It is the point on Earth’s Southern Hemisphere where the geomagnetic field lines are directed vertically upwards.
The Geomagnetic South Pole, a related point, is the south pole of an ideal dipole model of the Earth’s magnetic field that most closely fits the Earth’s actual magnetic field. For historical reasons, the “end” of a freely hanging magnet that points (roughly) north is itself called the “north pole” of the magnet, and the other end, pointing south, is called the magnet’s “south pole”.
Because opposite poles attract, Earth’s south magnetic pole is physically actually a magnetic north pole. Its position moves about 5 km a year. The location of the south magnetic pole in 2020 is 64.07°S, 135.88°E. The distance between the south geographic pole and the south magnetic pole is approximately 2,858 km.
(see also North magnetic pole § Polarity)
South Geomagnetic Pole:
The Geomagnetic poles (dipole poles) are the intersections of the Earth’s surface and the axis of a bar magnet hypothetically placed at the center of the Earth. Therefore, we approximate the geomagnetic field. On the other hand, magnetic poles are the points where the needle becomes vertical.
Above all, this is the point where the axis of this best-fitting tilted dipole intersects the Earth’s surface in the southern hemisphere. Moreover, there is a related point of an ideal dipole model of the Earth’s magnetic field that most closely fits the Earth’s actual magnetic field.
South Pole of Inaccessibility:
The Southern pole of inaccessibility is a point on the Antarctic continent which is most distant from the Southern ocean. Actually, a point of inaccessibility is the one where access to anything is not possible toward any region from any point. It has a variety of coordinated locations. Meanwhile using different criteria, the
Scott Polar Research Institute locates this pole at 85°50′S 65°47′E. It is lying on the Polar Plateau in a vast territory claimed by Australia. Due to its remoteness – it is 878 km away and the nearest city, Cape Town in South Africa, is 5631 km distant. In short, a Soviet expedition led by Yevgeny Tolstikov reached the Pole of Inaccessibility for the first time in 1958.