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杆II次探险下有许多目标。最重要的是,它的职业是目睹气候变化,当地问题,挑战社会将不得不面对未来几年。从科学的角度来看,优先事项是识别和编目在极地水域下的生物多样性,研究了大气,冰盖和海洋之间的相互作用,在年度北极周期中,并探讨暴露于暴露的潜水员的生理学极冷。
month expedition
divers and scientists
未探索地区的潜水
In addition to a financial endowment over two years, the Air Liquide Foundationsupplied Under the Pole II with equipment as well as the gases used for diving and oxygen therapy kits. Some sixty cylinders of oxygen and helium were delivered when the boat set sail from Brittany and others were shipped to Greenland, with the help of Air Liquide Denmark. With 300 dives under their belt, including 40 in the 100-meter zone, the need for these gases were significant.
The Air Liquide Foundation is particularly involved in supporting the two environmental and respiratory research programs.
Under the Pole II attempted to measure quantities of carbon dioxide (CO2) trapped in the ocean depths. When they form, polar ice sheets trap carbon dioxide and oxygen. These gases accumulate in pockets of brine (sea water with a high concentration of salt). Due to their greater density, these pockets sink, taking the trapped gases with them to the ocean depths. Consequently,the polar ice cap seems to play a key role in climate regulation。如果它迅速融化,这可能对地球气候的未来演变产生深远的影响。
杆II下面的一个目标之一是推回北极潜水的深海潜水的限制。这对Ghislain Bardout,Expedition Leader和Martin Mellet的真正挑战,他的潜水伙伴被整个团队所包围。并于2015年4月,他们首先进入了一个世界,descending to -111 meters under the polar ice cap,水温为-1.5°。
潜入这种深水潜水是技术壮举和生理学的壮举。在设备方面,根本没有即兴创作的空间。除了加热的潜水服外,潜水员还佩戴防水潜水服,适应非常冷的温度。至于潜水设备,潜水员使用与三种气体(氮气,氧气和氦气)混合使用的电子绞线。除了增加他们的自主性外,它们的使用还提供了增加的安全性,优化了减压,消除了麻醉,有时被称为“深深的狂喜”。
Technical and demanding, these dives require extensive training, well-oiled routines,潜水队友之间的完美沟通,总浓度。下降大约需要5分钟,而自治是10分钟,深度为100米。另一方面,需要在90到120分钟到恢复场所,具体取决于完成减压过程中的重要安全停止所需的时间。
Numerous physiological measurements are taken from divers and analyzed to track the human body’s tolerance in an extreme environment (extreme undersea depth and very cold water).
Among the 500 measures taken,5.areas of observation emerge:
To learn more about the work of Under the Pole II, visit theofficial websiteof the expedition!
Article published on November 08, 2017