|
Icefall
An icefall is a portion of certain glaciers characterized by relatively rapid flow and chaotic crevassed surface, caused in part by gravity. The term ''icefall'' is formed by analogy with the word ''waterfall'', which is a similar phenomenon of the liquid phase but at a more spectacular speed. When ice movement of a glacier is faster than elsewhere, because the glacier bed steepens or narrows, and the flow cannot be accommodated by plastic deformation, the ice fractures, forming crevasses. Where two fractures meet, seracs (or ice towers) can be formed. When the movement of the ice slows down, the crevasses can coalesce, resulting in the surface of the glacier becoming smoother. Ice flow Perhaps the most conspicuous consequence of glacier flow, icefalls occur where the glacier bed steepens and/or narrows. Most glacier ice flows at speeds of a few hundred metres per year or less. However, the flow of ice in an icefall may be measured in kilometres per year. Such rapid flow cannot ... [...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] |
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] |
Mountaineering
Mountaineering or alpinism, is a set of outdoor activities that involves ascending tall mountains. Mountaineering-related activities include traditional outdoor climbing, skiing, and traversing via ferratas. Indoor climbing, sport climbing, and bouldering are also considered variants of mountaineering by some. Unlike most sports, mountaineering lacks widely applied formal rules, regulations, and governance; mountaineers adhere to a large variety of techniques and philosophies when climbing mountains. Numerous local alpine clubs support mountaineers by hosting resources and social activities. A federation of alpine clubs, the International Climbing and Mountaineering Federation (UIAA), is the International Olympic Committee-recognized world organization for mountaineering and climbing. The consequences of mountaineering on the natural environment can be seen in terms of individual components of the environment (land relief, soil, vegetation, fauna, and landscape) and location/z ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roosevelt Glacier
Roosevelt Glacier is located on the north slopes of Mount Baker in the North Cascades of the U.S. state of Washington. Roosevelt Glacier descends to nearly at Chromatic Moraine. In the middle of its course, Roosevelt Glacier is connected to Coleman Glacier to its south. See also *List of glaciers in the United States This is a list of glaciers existing in the United States, currently or in recent centuries. These glaciers are located in nine states, all in the Rocky Mountains or farther west. The southernmost named glacier among them is the Lilliput Glacier ... References {{Glaciers of Mount Baker Glaciers of Mount Baker Glaciers of Washington (state) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crater Glacier
The Crater Glacier (also known as Tulutson Glacier) is a geologically young glacier that is located on Mount St. Helens, in the U.S. state of Washington. The glacier formed after the 1980 Eruption and due to its location, the body of ice grew rapidly, unknown to the public for nearly 20 years. The glacier once contained ice caves in the smooth ice before the 2004-2008 volcanic activity. The growth of the lava dome and volcanic eruptions from 2004 to 2008 significantly altered the appearance of the glacier. In the same time period, several agencies decided to put an official name on the glacier which, at first, was Tulutson Glacier. A later decision made Crater Glacier the official glacier name. Despite the volcanic activity, the glacier continued to advance and by mid-2008, the glacier completely encircled the lava domes. - Glacier is still connected south of the lava dome. In addition, new glaciers (rock or ice) have formed around Crater Glacier as well. Description True to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lambert Glacier
Lambert Glacier is a major glacier in East Antarctica. At about 50 miles (80 km) wide, over 250 miles (400 km) long, and about 2,500 m deep, it is the world's largest glacier. It drains 8% of the Antarctic ice sheet to the east and south of the Prince Charles Mountains and flows northward to the Amery Ice Shelf. It flows in part of Lambert Graben and exits the continent at Prydz Bay. This glacier was delineated and named in 1952 by American geographer John H. Roscoe who made a detailed study of this area from aerial photographs taken by Operation Highjump, 1946–47. He gave the name "Baker Three Glacier", using the code name of the Navy photographic aircraft and crew that made three flights in this coastal area in March 1947 resulting in geographic discoveries. The glacier was described in Gazetteer No. 14, ''Geographic Names of Antarctica'' (U.S. Board on Geographic Names, 1956), but the feature did not immediately appear on published maps. As a result the name Lam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roosevelt Glacier 6940
Roosevelt may refer to: *Theodore Roosevelt (1858–1919), 26th U.S. president *Franklin D. Roosevelt (1882–1945), 32nd U.S. president Businesses and organisations * Roosevelt Hotel (other) * Roosevelt & Son, a merchant bank * Roosevelt Institute, a think tank Educational establishments * Roosevelt School (other) * Roosevelt Elementary School (other) * Roosevelt Middle School (other) * Roosevelt High School (other) * Roosevelt School District (other) * Colegio Franklin Delano Roosevelt, The American School of Lima, Peru * Eleanor Roosevelt College, University of California, San Diego, U.S. * President Theodore Roosevelt High School, Honolulu, Hawaii, U.S. * Roosevelt Intermediate School, Westfield, New Jersey, U.S. * Roosevelt University, Illinois, U.S. * University College Roosevelt, formerly Roosevelt Academy, Middelburg, the Netherlands People * Roosevelt family, U.S. political family * Roosevelt (name) * List of peo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bodies Of Ice
Bodies may refer to: * The plural of body * ''Bodies'' (2004 TV series), BBC television programme * Bodies (upcoming TV series), an upcoming British crime thriller limited series * "Bodies" (''Law & Order''), 2003 episode of ''Law & Order'' * Bodies: The Exhibition, exhibit showcasing dissected human bodies in cities across the globe * ''Bodies'' (novel), 2002 novel by Jed Mercurio * ''Bodies'', 1977 play by James Saunders (playwright) * ''Bodies'', 2009 book by British psychoanalyst Susie Orbach Music * ''Bodies'' (album), a 2021 album by AFI * ''Bodies'' (EP), a 2014 EP by Celia Pavey * "Bodies" (Drowning Pool song), 2001 hard rock song by Drowning Pool * "Bodies" (Sex Pistols song), 1977 punk rock song by the Sex Pistols * "Bodies" (Little Birdy song), 2007 indie rock song by Little Birdy * "Bodies" (Robbie Williams song), 2009 pop song by Robbie Williams * "Bodies", a song by Megadeth from ''Endgame'' * "Bodies", a song by The Smashing Pumpkins from ''Mellon Collie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glacier Morphology
Glacier morphology, or the form a glacier takes, is influenced by temperature, precipitation, topography, and other factors. The goal of glacial morphology is to gain a better understanding of glaciated landscapes and the way they are shaped. Types of glaciers can range from massive ice sheets, such as the Greenland ice sheet, to small cirque glaciers found perched on mountain tops. Glaciers can be grouped into two main categories: * Ice flow is constrained by the underlying bedrock topography * Ice flow is unrestricted by surrounding topography Unconstrained Glaciers Ice sheets and ice caps Ice sheets and ice caps cover the largest areas of land in comparison to other glaciers, and their ice is unconstrained by the underlying topography. They are the largest glacial ice formations and hold the vast majority of the world's fresh water. Ice sheets Ice sheets are the largest form of glacial formation. They are continent sized ice masses that span areas over . They are dome s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jasper National Park
Jasper National Park is a national park in Alberta, Canada. It is the largest national park within Alberta's Rocky Mountains spanning . It was established as a national park in 1930 and declared a UNESCO World Heritage Site in 1984. Its location is north of Banff National Park and west of Edmonton. The park contains the glaciers of the Columbia Icefield, springs, lakes, waterfalls and mountains. History First Nations The territory encompassed by what is now Jasper National Park has been inhabited since time immemorial by Nakoda, Cree, Secwépemc, and Dane-zaa peoples. Plainview projectile points have been found at the head of Jasper Lake, dating back to between 8000 and 7000 BCE. In the centuries between then and the establishment of the park, First Nations land use has fluctuated according to climatic variations over the long term, and according to cyclical patterns of ungulate population numbers, particularly elk, moose, mule deer, and occasionally caribou. Starting ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount St
Mount is often used as part of the name of specific mountains, e.g. Mount Everest. Mount or Mounts may also refer to: Places * Mount, Cornwall, a village in Warleggan parish, England * Mount, Perranzabuloe, a hamlet in Perranzabuloe parish, Cornwall, England * Mounts, Indiana, a community in Gibson County, Indiana, United States People * Mount (surname) * William L. Mounts (1862–1929), American lawyer and politician Computing and software * Mount (computing), the process of making a file system accessible * Mount (Unix), the utility in Unix-like operating systems which mounts file systems Displays and equipment * Mount, a fixed point for attaching equipment, such as a hardpoint on an airframe * Mounting board, in picture framing * Mount, a hanging scroll for mounting paintings * Mount, to display an item on a heavy backing such as foamcore, e.g.: ** To pin a biological specimen, on a heavy backing in a stretched stable position for ease of dissection or display ** To p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
