Monday, June 13, 2011

Beautiful mountain : Mount Everest


From Wikipedia, the free encyclopedia

Mount Everest (Tibetan: ཇོ་མོ་གླང་མ, Jomolungma, "Holy Mother"; Chinese: 珠穆朗玛峰, Mandarin: Zhūmùlǎngmǎ Fēng, "Jomolungma Peak"; Nepali: सगरमाथा, Sagarmāthā) is the world's highest mountain at 8,848 metres (29,029 ft) above sea level. Everest is in the Mahalangur section of the Himalaya on the Nepal-China (Tibet) border. Its massif includes neighboring peaks Lhotse (8516m), Nuptse (7855m), and Changtse (7580m).

In 1856, the Great Trigonometric Survey of British India established the first published height of Everest, then known as Peak XV, at 29,002 ft (8,840 m). In 1865, Everest was given its official English name by the Royal Geographical Society upon recommendation of Andrew Waugh, the British Surveyor General of India at the time, who named it after his predecessor in the post, and former chief, Sir George Everest. Chomolungma had been in common use by Tibetans for centuries, but Waugh was unable to propose an established local name because Nepal and Tibet were closed to foreigners.

The highest mountain in the world attracts many well-experienced mountaineers as well as novice climbers who are willing to pay substantial sums to professional mountain guides to complete a successful climb. The mountain, while not posing substantial technical climbing difficulty on the standard route (other eight-thousanders such as K2 or Nanga Parbat are much more difficult), still has many inherent dangers such as altitude sickness, weather, and wind.

By the end of the 2008 climbing season, there had been 4,102 ascents to the summit by about 2,700 individuals.[4] Climbers are a significant source of tourist revenue for Nepal, whose government also requires all prospective climbers to obtain an expensive permit, costing up to US$25,000 per person.[5] By the end of 2009 Everest had claimed 216 lives,[4] including eight who perished during a 1996 storm high on the mountain. Conditions are so difficult in the death zone—altitudes higher than 8,000 metres (26,000 ft)—that most corpses have been left where they fell. Some of them are visible from standard climbing routes

Identifying the highest mountain
Mount Everest is located in Earth
Location on Earth
Mount Everest relief map

In 1808, the British began the Great Trigonometric Survey of India to determine the location and names of the world's highest mountains. Starting in southern India, the survey teams moved northward using giant 500 kg (1,100 lb) theodolites (each requiring 12 men to carry) to measure heights as accurately as possible. They reached the Himalayan foothills by the 1830s, but Nepal was unwilling to allow the British to enter the country because of suspicions of political aggression and possible annexation. Several requests by the surveyors to enter Nepal were turned down.[7]

The British were forced to continue their observations from Terai, a region south of Nepal which is parallel to the Himalayas. Conditions in Terai were difficult owing to torrential rains and malaria—three survey officers died from malaria while two others had to retire owing to failing health.[7]

Nonetheless, in 1847, the British pressed on and began detailed observations of the Himalayan peaks from observation stations up to 240 km (150 mi) away. Weather restricted work to the last three months of the year. In November 1847, Andrew Waugh, the British Surveyor General of India made several observations from Sawajpore station located in the eastern end of the Himalayas. Kangchenjunga was then considered the highest peak in the world, and with interest he noted a peak beyond it, some 230 km (140 mi) away. John Armstrong, one of Waugh's officials, also saw the peak from a location farther west and called it peak 'b'. Waugh would later write that the observations indicated that peak 'b' was higher than Kangchenjunga, but given the great distance of the observations, closer observations were required for verification. The following year, Waugh sent a survey official back to Terai to make closer observations of peak 'b', but clouds thwarted all attempts.[7]

In 1849, Waugh dispatched James Nicolson to the area. Nicolson made two observations from Jirol, 190 km (120 mi) away. Nicolson then took the largest theodolite and headed east, obtaining over 30 observations from five different locations, with the closest being 174 km (108 mi) away from the peak.[7]

Nicolson retreated to Patna on the Ganges to perform the necessary calculations based on his observations. His raw data gave an average height of 9,200 m (30,200 ft) for peak 'b', but this did not consider light refraction, which distorts heights. The number clearly indicated, however, that peak 'b' was higher than Kangchenjunga. However, Nicolson came down with malaria and was forced to return home, calculations unfinished. Michael Hennessy, one of Waugh's assistants, had begun designating peaks based on roman numerals, with Kangchenjunga named Peak IX, while peak 'b' now became known as Peak XV.[7]

In 1852, stationed at the survey's headquarters in Dehradun, Radhanath Sikdar, an Indian mathematician and surveyor from Bengal, was the first to identify Everest as the world's highest peak, using trigonometric calculations based on Nicolson's measurements.[8] An official announcement that Peak XV was the highest was delayed for several years as the calculations were repeatedly verified. Waugh began work on Nicolson's data in 1854, and along with his staff spent almost two years working on the calculations, having to deal with the problems of light refraction, barometric pressure, and temperature over the vast distances of the observations. Finally, in March 1856 he announced his findings in a letter to his deputy in Kolkata. Kangchenjunga was declared to be 28,156 ft (8,582 m), while Peak XV was given the height of 29,002 ft (8,840 m). Waugh concluded that Peak XV was "most probably the highest in the world".[7] Peak XV (measured in feet) was calculated to be exactly 29,000 ft (8,839.2 m) high, but was publicly declared to be 29,002 ft (8,839.8 m). The arbitrary addition of 2 ft (61 cm) was to avoid the impression that an exact height of 29,000 feet (8,839.2 m) was nothing more than a rounded estimate.[9]
[edit] Naming

With the height now established, what to name the peak was clearly the next challenge. While the survey was anxious to preserve local names if possible (e.g. Kangchenjunga and Dhaulagiri), Waugh argued that he could not find any commonly used local name. Waugh's search for a local name was hampered by Nepal and Tibet's exclusion of foreigners. Many local names existed, including "Deodungha" ("Holy Mountain") in Darjeeling[10] and the Tibetan "Jomolungma" (ཇོ་མོ་གླིང་མ), which appeared as "Chomolungma" on a 1733 map published in Paris by the French geographer D'Anville. In the late 19th century, many European cartographers further believed (incorrectly) that a native name for the mountain was "Gaurisankar",[11] although this was a result of confusion of Mount Everest with Gauri Sankar, which, when viewed from Kathmandu, stands almost directly in front of Everest.[citation needed]

Waugh argued that with the plethora of local names, it would be difficult to favour one name over all others. So, he decided that Peak XV should be named after George Everest, his predecessor as Surveyor General of India.[7][12] He wrote:

    I was taught by my respected chief and predecessor, Colonel Sir George Everest to assign to every geographical object its true local or native appellation. But here is a mountain, most probably the highest in the world, without any local name that we can discover, whose native appellation, if it has any, will not very likely be ascertained before we are allowed to penetrate into Nepal. In the meantime the privilege as well as the duty devolves on me to assign...a name whereby it may be known among citizens and geographers and become a household word among civilized nations.[13]

George Everest opposed the name suggested by Waugh and told the Royal Geographical Society in 1857 that Everest could not be written in Hindi nor pronounced by "the native of India". Waugh's proposed name prevailed despite the objections, and in 1865, the Royal Geographical Society officially adopted Mount Everest as the name for the highest mountain in the world.[7] Interestingly, the modern pronunciation of Everest ˈɛvərɨst, ˈɛvrɨst[14] is in fact different from Sir George's pronunciation of his surname, which was /ˈiːvrɨst/.[15]
Aerial view of Mount Everest from the south

The modern Tibetan name for Mount Everest is ཇོ་མོ་གླིང་མ (Wylie: Jomolungma; also transliterated Chomolungma in the West and Qomolangma in China), meaning "Holy Mother". The official Chinese name is Zhūmùlǎngmǎ Fēng (simplified Chinese: 珠穆朗玛峰; traditional Chinese: 珠穆朗瑪峰), "Jomolungma Peak," although it is sometimes known as Shèngmǔ Fēng (simplified Chinese: 圣母峰; traditional Chinese: 聖母峰), the Chinese for "Holy Mother".

In the early 1960s, the Nepalese government gave Mount Everest the official name Sagarmāthā (सगरमाथा),[16] although this name had not previously been used. The local inhabitants knew the mountain as Jomolungma. The mountain was not previously named in Nepali.[citation needed] The government set out to find a Nepalese name for the mountain because the government felt the Tibetan name Jomolungma was not acceptable.[citation needed]

In 2002, the Chinese People's Daily newspaper published an article making a case against the continued use of the English name for the mountain in the Western world, insisting that it should be referred to by its Tibetan name. The newspaper argued that the Chinese use of the Tibetan name preceded the English one, as "Mount Qomolangma" was marked on a Chinese map more than 280 years ago

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