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Western Cwm
The Western Cwm () is a broad, flat, gently undulating glacial valley basin terminating at the foot of the Lhotse Face of Mount Everest. It was named by George Mallory when he saw it in 1921 as part of the British Reconnaissance Expedition that was the first to explore the upper sections of Everest, searching for routes for future summit attempts; p. 7 Cwm is Welsh for "valley". The Western Cwm is traversed by climbers using the southeast route to the summit of Everest and is typically accessed by climbing through the Khumbu Icefall. The central section is cut by massive lateral crevasses which bar entrance into the upper Western Cwm. In this section, climbers must cross to the far right, over to the base of Nuptse, to a narrow passageway known as the Nuptse corner. From there, climbers can see the upper of Everest—the first glimpse of Everest's upper slopes since arriving at Base Camp. The snow-covered, bowl-shaped slopes surrounding the Western Cwm reflect and amplify sola ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Cwm And Lhotse
Western may refer to: Places *Western, Nebraska, a village in the US *Western, New York, a town in the US *Western Creek, Tasmania, a locality in Australia *Western Junction, Tasmania, a locality in Australia *Western world, countries that identify with shared "Western" culture Arts and entertainment Films * ''Western'' (1997 film), a French road movie directed by Manuel Poirier * ''Western'' (2017 film), a German-Austrian film Genres *Western (genre), a category of fiction and visual art centered on the American Old West **Western fiction, the Western genre as featured in literature **Western music (North America), a type of American folk music Music * ''Westerns'' (EP), an EP by Pete Yorn *WSTRN, a British hip hop group from west London Business *The Western, a closed hotel/casino in Las Vegas, United States *Western Cartridge Company, a manufacturer of ammunition *Western Publishing, a defunct publishing company Educational institutions *Western Washington University i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lhotse
Lhotse ( ne, ल्होत्से ; , ''lho tse'', ) is the fourth highest mountain in the world at , after Mount Everest, K2, and Kangchenjunga. The main summit is on the border between Tibet Autonomous Region of China and the Khumbu region of Nepal. With Everest to the north and Nuptse to the west, Lhotse forms the apex of the massive horseshoe-shaped arc of the Everest massif. Despite the tremendous vertical relief of its South and Northeast Faces, it is the least prominent of the eight-thousanders due to the great height of the South Col between it and Everest. Lhotse’s Western Face, recessed behind the head of the Khumbu Glacier in the Western Cwm, plays an integral part in the standard routes of ascent for both peaks; the name Lhotse, which means "South Peak" in Tibetan, further emphasizes the close relationship between the two. The main ridge of the mountain features four distinct summits: Lhotse Main at above sea level, Lhotse Middle (also known as Lhotse Ce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Everest
Mount Everest (; Tibetan: ''Chomolungma'' ; ) is Earth's highest mountain above sea level, located in the Mahalangur Himal sub-range of the Himalayas. The China–Nepal border runs across its summit point. Its elevation (snow height) of was most recently established in 2020 by the Chinese and Nepali authorities. Mount Everest attracts many climbers, including highly experienced mountaineers. 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, and wind, as well as hazards from avalanches and the Khumbu Icefall. , over 300 people have died on Everest, many of whose bodies remain on the mountain. The first recorded efforts to reach Everest's summit were made by British mountaineers. As Nepal did not allow foreigners ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Mallory
George Herbert Leigh Mallory (18 June 1886 – 8 or 9 June 1924) was an English mountaineer who took part in the first three British expeditions to Mount Everest in the early 1920s. Born in Cheshire, Mallory became a student at Winchester College, where a teacher recruited him for an excursion in the Alps and he developed a strong natural ability for climbing. After graduating from Magdalene College, Cambridge, he taught at Charterhouse School whilst honing his skills as a climber in the Alps and the English Lake District. He served in the British Army during the First World War and fought at the Somme. After the war, Mallory returned to Charterhouse before resigning to participate in the 1921 British Mount Everest reconnaissance expedition. In 1922, he took part in a second expedition to make the first ascent of the world's highest mountain, in which his team achieved a record altitude of without supplemental oxygen. Once asked by a reporter why he wanted to climb Eve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1921 British Mount Everest Reconnaissance Expedition
The 1921 British Mount Everest reconnaissance expedition set off to explore how it might be possible to get to the vicinity of Mount Everest, to reconnoitre possible routes for ascending the mountain, and – if possible – make the first ascent of the highest mountain in the world. At that time Nepal was closed to foreigners, so any approach had to be from the north, through Tibet. A feasible route was discovered from the east up the Kharta Glacier and then crossing the Lhakpa La pass north east of Everest. It was then necessary to descend to the East Rongbuk Glacier before climbing again to Everest's North Col. However, although the North Col was reached, it was not possible to climb further before the expedition had to withdraw. Initially the expedition explored from the north and discovered the main Rongbuk Glacier, only to find that it seemed to provide no likely routes to the summit. However, at the time it was not realised that the East Rongbuk glacier actually flowed in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Welsh Language
Welsh ( or ) is a Celtic language family, Celtic language of the Brittonic languages, Brittonic subgroup that is native to the Welsh people. Welsh is spoken natively in Wales, by some in England, and in Y Wladfa (the Welsh colony in Chubut Province, Argentina). Historically, it has also been known in English as "British", "Cambrian", "Cambric" and "Cymric". The Welsh Language (Wales) Measure 2011 gave the Welsh language official status in Wales. Both the Welsh and English languages are ''de jure'' official languages of the Welsh Parliament, the Senedd. According to the 2021 United Kingdom census, 2021 census, the Welsh-speaking population of Wales aged three or older was 17.8% (538,300 people) and nearly three quarters of the population in Wales said they had no Welsh language skills. Other estimates suggest that 29.7% (899,500) of people aged three or older in Wales could speak Welsh in June 2022. Almost half of all Welsh speakers consider themselves fluent Welsh speakers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Khumbu Icefall
The Khumbu Icefall is located at the head of the Khumbu Glacier and the foot of the Western Cwm, which lies at an elevation of on the Nepali slopes of Mount Everest, not far above Base Camp and southwest of the summit. The icefall is considered one of the most dangerous stages of the South Col route to Everest's summit. Overview The Khumbu Glacier moves an estimated down the flank of Mt. Everest every day. Ice entering the fall takes approximately 4.3 years to emerge at the base which is 2,000 vertical feet lower and one linear mile away. The speed of ice flow and the precipitous elevation drop, creates a bergschrund (ice berg shoulder) characterized at the top by massive transverse blocks that calve off the upper glacier creating gaping crevasses (hundreds of feet deep and often over 50 feet wide). As these massive initial glacial segments descend the fall, they are slowly twisted and crushed by the churning pressure of glacial flow, generating increasingly torturous crevasse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuptse
Nuptse or Nubtse (Sherpa: नुबचे, Wylie: Nub rtse, ) is a mountain in the Khumbu region of the Mahalangur Himal, in the Nepalese Himalayas. It lies two kilometres WSW of Mount Everest. Nubtse is Tibetan for "west peak", as it is the western segment of the Lhotse-Nubtse massif. The main peak, Nubtse I, was first climbed on May 16, 1961 by Dennis Davis and Sherpa Tashi and the following day by Chris Bonington, Les Brown, James Swallow and Pemba Sherpa, members of a British expedition led by Joe Walmsley. After a long hiatus, Nubtse again became the objective of high-standard mountaineers in the 1990s and 2000s, with important routes being put up on its west, south, and north faces. While Nubtse is a dramatic peak when viewed from the south or west, and it towers above the base camp for the standard south col route on Everest, it is not a particularly independent peak: its topographic prominence is only . Hence it is not ranked on the list of highest mountains. Views ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Everest Base Camp
There are two base camps on Mount Everest, on opposite sides of the mountains: South Base Camp is in Nepal at an altitude of (), while North Base Camp is in Tibet, China at (). The base camps are rudimentary campsites at the base of Mount Everest that are used by mountain climbers during their ascent and descent; they are also visited by hikers. South Base Camp is used when climbing via the southeast ridge, while North Base Camp is used when climbing via the northeast ridge. Supplies are shipped to the South Base Camp by porters, and with the help of animals, usually yaks. The North Base Camp is accessed by a paved road that branches from China National Highway 318. Climbers typically rest at base camp for several days for acclimatization, to reduce the risk of altitude sickness. South Base Camp in Nepal The Everest Base Camp trek on the south side, at an elevation of , is one of the most popular trekking routes in the Himalayas and about 40,000 people per year make the tre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solar Radiation
Solar irradiance is the power per unit area (surface power density) received from the Sun in the form of electromagnetic radiation in the wavelength range of the measuring instrument. Solar irradiance is measured in watts per square metre (W/m2) in SI units. Solar irradiance is often integrated over a given time period in order to report the radiant energy emitted into the surrounding environment (joule per square metre, J/m2) during that time period. This integrated solar irradiance is called solar irradiation, solar exposure, solar insolation, or insolation. Irradiance may be measured in space or at the Earth's surface after atmospheric absorption and scattering. Irradiance in space is a function of distance from the Sun, the solar cycle, and cross-cycle changes.Michael Boxwell, ''Solar Electricity Handbook: A Simple, Practical Guide to Solar Energy'' (2012), p. 41–42. Irradiance on the Earth's surface additionally depends on the tilt of the measuring surface, the height ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geneva Spur
The Geneva Spur, named Eperon des Genevois and has also been called the Saddle Rib "Chapter Two ..Saddle Rib" is a geological feature on Mount Everestit is a large rock buttress near the summits of Everest and Lhotse. The Geneva spur is above Camp III and the Yellow Band, but before Camp IV and South Col. It is a spur near the south col. A related formation is the saddle between the peaks of Mount Everest and Lhotse. The altitude of the spur is between . The Geneva Spur name comes from the 1952 Swiss Mount Everest Expedition. The spur provides a route to the South Col, and is usually traversed by climbers heading for Lhotse or Everest summits. From the top of Geneva Spur, South Col can be seen, and when looking at it Mount Everest is on the left and Lhotse to the right. Lhotse climbers typically head southeast from Geneva Spur, and on to a couloir to ascend that summit. History On the 1956 Swiss Everest–Lhotse Expedition, the spur was the location of the last high camp befo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Col
The South Col is a sharp-edged col between Mount Everest and Lhotse, the highest and fourth-highest mountains in the world, respectively. The South Col is typically swept by high winds, leaving it free of significant snow accumulation. Since 1950 (when Tibet was closed), most Everest expeditions have left from Nepal and gone via the southeast ridge and the South Col (instead of via the North Col). When climbers attempt to climb Everest from the southeast ridge in Nepal, their final camp (usually Camp IV) is situated on the South Col. The South Col was first reached on 12 May 1952 by Aubert, Lambert, and Flory of Edouard Wyss-Dunant's Swiss Mount Everest Expedition that failed to reach the summit. The following year, when Mount Everest was first climbed, Wilfrid Noyce and the Sherpa Annullu were the first climbers on the expedition to reach the col. According to John Hunt, the expedition leader: Once on the South Col, climbers have entered the death zone; altitude sickness ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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