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Pole of Cold

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The Poles of Cold are the places in the southern and northern hemispheres where the lowest air temperatures have been recorded.

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Pole of Cold The Pole of cold Festival

Southern hemisphere

Pole of Cold Land Rover drives Defender to the Pole of Cold Autoblog

In the southern hemisphere, the Pole of Cold is currently located in Antarctica, at the Russian (formerly Soviet) Antarctic station Vostok at 78°28′S 106°48′E. On July 21, 1983, this station recorded a temperature of −89.2 °C (−128.6 °F). This is the lowest naturally occurring temperature ever recorded on Earth. Vostok station's location at the elevation of 3,488 m (11,444 ft) above sea level, far removed from the moderating influence of oceans (more than 1,000 km [620 mi] from the nearest sea coast), and high latitude that results in almost three months of civil polar night every year (early May to end of July), all combine to produce an environment where temperatures rarely rise above −25 °C (−13 °F) during summer and frequently fall below −70 °C (−94 °F) in winter. By comparison, the South Pole, due to its lower elevation, is, on average, 5 to 10 °C (9 to 18 °F) warmer than Vostok, and the lowest temperature ever recorded at the South Pole is −82.8 °C (−117 °F).

Pole of Cold The Pole of Cold Expedition Felicity Aston

It is generally thought that Vostok is not the coldest place in Antarctica, and there are locations (notably, Dome A) that are modestly colder on average. Monitoring stations in Antarctica are few and far between; prior to 1995, Vostok was the only research station on the Antarctic Plateau above the elevation of 3,000 m (9,800 ft), with no other stations for several hundreds of kilometers in any direction. Temperatures below −89.2 °C (−128.6 °F), if they did occur elsewhere, would not have been recorded. The automatic weather station at Dome A was only installed in 2005, and has recorded −82.5 °C (−116.5 °F) as the coldest so far (2010). However a review of satellite measurements taken between 2010–2013 found several places located along a ridge between Dome A and Dome F which recorded even lower temperatures of −92 to −94 °C (−134 to −137 °F), with the lowest reliable temperature being −93.2 °C (−135.8 °F) recorded in 2010, at 81°48′S 59°18′E, at an elevation of 3,900 m (12,800 ft). The extreme low temperatures are found in hollows slightly below the peak of the ice ridge, where cold air gets trapped as it flows downhill, and since the same low temperature ranges were detected at several different sites along the ridge across multiple years, it is thought this may be the lowest temperature achievable under local atmospheric conditions.

Northern hemisphere

Pole of Cold The Pole Of Cold

In the northern hemisphere, there are two places in the Republic of Sakha (Yakutia), Siberia, Russia that vie for the honour of being considered the "Pole of Cold" in winter. These are Verkhoyansk (located at 67°33′N 133°23′E) and Oymyakon (located at 63°15′N 143°9′E).

Pole of Cold Royal Geographic Society Explores quotPole of Coldquot in Land Rover

In December 1868 and then in February 1869 Ivan Khudyakov made the discovery of the Northern Pole of Cold by measuring a record temperature of −63.2 °C (−81.8 °F) in Verkhoyansk. Later, on January 15, 1885, a temperature of −67.8 °C (−90 °F) was registered there by Sergey Kovalik. This became the new world record, and is still the record for the northern hemisphere. This measurement was published in the Annals of the General Physical Observatory in 1892; by mistake it was written as −69.8 °C (−93.6 °F), which was later corrected. One can still find this incorrect value in some literature.

Pole of Cold Royal Geographic Society Explores quotPole of Coldquot in Land Rover

In 1924, Russian scientist Sergey Obruchev registered the lowest temperature −71.2 °C (−96.2 °F). On February 6, 1933, a temperature of −67.7 °C (−89.9 °F) was recorded at Oymyakon's weather station. The weather station is in a valley between Oymyakon and Tomtor. The station is at 750 m (2,460 ft) and the surrounding mountains at 1,100 m (3,600 ft), causing cold air to pool in the valley: recent studies show that winter temperatures in the area increase with elevation by as much as 10 °C (18 °F).

Another possible candidate is Mount Logan in Canada which recorded a temperature of −77.5 °C (−107.5 °F) in May 1991 and average of −27 °C (−17 °F). This is controversial as it is at a very high elevation, nearly 6,000 metres (20,000 ft). Similar claims have been made for Denali.

References

Pole of Cold Wikipedia


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