Acute Mountain Sickness – High Altitude Sickness in Tibet
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Acute Mountain Sickness – High Altitude Sickness in Tibet

Update: Jul. 30th, 2012

Tibet Plateau

Tibet has some of the world's tallest mountains such as Mt. Everest, at 8,848 meters (29,029 ft), the highest mountain on earth. Mt. Everest is praised as the holy mountain of Tibet by local Tibetans, as well as Mt. Kailash.

Many tourists come to visit Tibet and some of them suffered the high altitude sickness such as Acute Mountain Sickness. So what else of high altitude sickness in Tibet Plateau?

Acute Mountain Sickness – High Altitude Sickness in Tibet

Low oxygen and low boiling point

Tibet Plateau (Qinghai – Tibet Plateau) averages high altitude above 4000m. The atmosphere pressure is about 570-780 millibar, which is 40% lesser than plain areas.

With lower air pressure and air density decreasing, the oxygen in the air is decreasing, too. For example, it is only 0.186 kilograms of oxygen per cubic meter of air, which is only 65% of it in plain area.

The absence of oxygen may cause bad headache, very exhausted at every moment, nausea and vomiting, dizziness, abnormal pant/breath and heartbeat, loss of appetite, and insomnia.

Due to the high altitude and low air pressure, the boiling point is lower than plain areas. For example, it is only 88.5? in Lhasa city. It is only 86.3 ? in Pali.

Strong solar radiation

There is rich sunlight and strong solar radiation in Tibet, as thin and clean air. In Lhasa, the solar radiation could reach 195kilocalorie/cm, and the duration of sunshine could reach 3005 hours.

Low temperature, less rainfall and dry climate

The average temperature of Tibet is lower than other places with the same latitude. Northern Tibet averages 0-5? in a year, Ngari Prefecture features 0?, the agriculture region of the Yarlung Zangbo River averages 3-8?. Tibet features less rainfall, low temperature and dry climate because Himalaya Mountain Range resists the heat flow from southern sea.

Strong Wind

After October, the wind becomes strong and wind speed becomes fast. In Ngari Prefecture, there are about 155 windy days in a year.

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