Environment at Mount Everest

Atmospheric pressure comparison Pressure
kilopascal psi
Olympus Mons summit 0.03 0.0044
Mars average 0.6 0.087
Hellas Planitia bottom 1.16 0.168
Armstrong limit 6.25 0.906
Mount Everest summit 33.7 4.89
Earth sea level 101.3 14.69
Dead Sea level 106.7 15.48
Surface of Venus 9,200 1,330

In 2008, a new weather station at about 8000 m altitude (26,246 feet) went online. The station’s first data in May 2008 were air temperature −17 °C (1 °F), relative humidity 41.3%, atmospheric pressure 382.1 hPa (38.21 kPa), wind direction 262.8°, wind speed 12.8 m/s (28.6 mph, 46.1 km/h), global solar radiation 711.9 watts/m2, solar UVA radiation 30.4 W/m2. The project was orchestrated by Stations at High Altitude for Research on the Environment (SHARE), who also placed the Mount Everest webcam in 2011. The weather station is located on the South Col and is solar powered.

One of the issues facing climbers is the frequent presence of high-speed winds. The peak of Mount Everest extends into the upper troposphere and penetrates the stratosphere, which can expose it to the fast and freezing wind of the jet stream. In February 2004 a wind speed of 280 km/h (175 mph) was recorded at the summit and winds over 160 km/h (100 mph) are common. These winds can blow climbers off Everest. Climbers typically aim for the 7 to 10 day windows in the spring and fall when the Asian monsoon season is either starting up or ending and the winds are lighter. The air pressure at the summit is about one-third what it is at sea level, and by Bernoulli’s principle, the winds can lower the pressure further, causing an additional 14% reduction in oxygen to climbers. The reduction in oxygen availability comes from the reduced overall pressure, not a reduction in the ratio of oxygen to other gases.

In the summer, the Indian monsoon brings warm wet air from the Indian ocean to Everest’s south side. During the winter the West/South-West flowing jet stream shifts south and blows on the peak.

Source Courtesy: WIKIPEDIA

Mount Everest

 

Mount Everest, also known in Nepal as Sagarmāthā and in Tibet as Chomolungma, is Earth’s highest mountain. It is located in the Mahalangur mountain range in Nepal and Tibet. Its peak is 8,848 metres (29,029 ft) above sea level. It is not the furthest summit from the centre of the Earth. That honour goes to Mount Chimborazo, in the Andes. The international border between China (Tibet Autonomous Region) and Nepal runs across Everest’s precise summit point. Its massif includes neighbouring peaks Lhotse, 8,516 m (27,940 ft); Nuptse, 7,855 m (25,771 ft) and Changtse, 7,580 m (24,870 ft).

In 1856, the Great Trigonometrical Survey of India established the first published height of Everest, then known as Peak XV, at 8,840 m (29,002 ft). The current official height of 8,848 m (29,029 ft) as recognised by China and Nepal was established by a 1955 Indian survey and subsequently confirmed by a Chinese survey in 1975. In 1865, Everest was given its official English name by the Royal Geographical Society upon a recommendation by Andrew Waugh, the British Surveyor General of India. Waugh named the mountain after his predecessor in the post, Sir George Everest, arguing that there were many local names, against the opinion of Everest.

Mount Everest attracts many highly experienced mountaineers as well as capable climbers willing to hire professional guides. There are two main climbing routes, one approaching the summit from the southeast in Nepal (known as the standard route) and the other from the north in Tibet. While not posing substantial technical climbing challenges on the standard route, Everest presents dangers such as altitude sickness, weather, wind as well as significant objective hazards from avalanches and theKhumbu Icefall.

The first recorded efforts to reach Everest’s summit were made by British mountaineers. With Nepal not allowing foreigners into the country at the time, the British made several attempts on the north ridge route from the Tibetan side. After the firstreconnaissance expedition by the British in 1921 reached 7,000 m (22,970 ft) on the North Col, the 1922 expedition pushed the North ridge route up to 8,320 m (27,300 ft) marking the first time a human had climbed above 8,000 m (26,247 ft). Tragedy struck on the descent from the North col when seven porters were killed in an avalanche. The 1924 expedition resulted in the greatest mystery on Everest to this day: George Mallory and Andrew Irvine made a final summit attempt on June 8 but never returned, sparking debate as to whether they were the first to reach the top. They had been spotted high on the mountain that day but disappeared in the clouds, never to be seen again, until Mallory’s body was found in 1999 at 8,155 m (26,755 ft) on the North face. Tenzing Norgay and Edmund Hillary made the first official ascent of Everest in 1953 using the southeast ridge route. Tenzing had reached 8,595 m (28,199 ft) the previous year as a member of the 1952 Swiss expedition. The Chinese mountaineering team of Wang Fuzhou, Gonpo and Qu Yinhua made the first reported ascent of the peak from the North Ridge on May 25, 1960.

Source Courtesy: Wikipedia

An Uphill Task

Ludhiana boy Karan Soni is ready with his Bollywood production Challang, which is about a physically challenged boy climbing the Mt Everest

Starting his career with modelling, this Ludhiana lad, Karan Soni, is all set to carve a niche for himself in Bollywood.After producing Punjabi film What the Jatt and working with Raghavan in Badlapur, he is planning to make a meaningful and inspirational movie as he was influenced with films like Bhaag Milkha Bhaag and Mary Kom.Once while going through news items, he came across a very inspiring story of Nagpur-based boy Ashok Munne. He wanted to make a film on this boy as it was a story worth telling. So, with the help of director Shivam Nair and other team-mates he contacted Ashok and took details of his journey.Following it up with research, he has now announced this movie titled, Challang. This movie will showcase the extra-ordinary journey of this common village boy, who after losing his leg in a train accident, set out to climb the Mount Everest with one leg and do paragliding from it. How he achieved his goal would be the highlight of the plot.“It will show how he achieved such feats despite the handicap. I hope to get the message across to physically challenged people to draw upon his or her strength and achieve what he or she wants to. Also, if somebody with some shortcomings can dream and achieve so much, why cant any able bodied person do so?” says Karan.Shooting of this film will begin in first half of 2016. It will be the first Bollywood film to be shot on Mount Everest and Meera peak. The shooting was postponed due to the earthquake in Nepal which destroyed the locations where it was to be shot.The film will be directed by Shivam Nair and will be produced by his company NS Productions in association with others.“For my future projects I am already looking for different subjects like supernatural and looking to tie up for sequels of hit films. By 2017, I am planning to release at least three films in collaboration with some big Bollywood directors and actors,” says this Ludhiana lad.

Courtesy: The Tribune

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