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Expedition Climbing
Expedition climbing (or expedition-style or pejoratively siege climbing), is a type of mountaineering that uses a series of well-stocked camps on the mountain that lead to the summit (e.g. Base Camp, Camp 1, Camp 2, etc.,), and which are supplied by teams of mountain porters. In addition, expedition climbing can also employ multiple 'climbing teams' to work on the climbing route—not all of whom are expected to make the summit—and allows the use of supports such as fixed ropes, aluminum ladders, supplementary oxygen, and sherpa climbers. By its nature, expedition climbing often requires weeks to complete a given climbing route, and months of pre-planning given the greater scale of people and equipment that need to be coordinated for the climb. 'Expedition style' climbing is in direct contrast to 'alpine style' climbing, which involves a single small fast-moving summit climbing team that carries all their supplies and equipment (e.g. no mountain porters or sherpas) and make ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High Altitude Breathing Apparatus
High altitude breathing apparatus is breathing apparatus which allows a person to breathe more effectively at an altitude where the partial pressure of oxygen in the ambient atmospheric air is insufficient for the task or to sustain consciousness or human life over the long or short term. High altitude breathing sets may be classified by type in several ways: * by application: aviation breathing apparatus and mountaineering breathing apparatus. * by breathing gas source: self-contained gas supply, or remotely supplied gas, * by breathing circuit type: open, semi-closed, or closed circuit, * by gas supply type: constant flow, supply on demand, or supplemental, * by ventilatory driving force: the breathing effort of the user, or mechanical work from an external source, * by gas mixture: air, oxygen enriched, or pure oxygen. The user respiratory interface is the delivery system by which the breathing apparatus guides the breathing gas flow to and from the user. Some form of face ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
