high altitude
Where air thins
High altitude refers to elevations well above sea level, typically where atmospheric pressure and oxygen levels drop noticeably.
The threshold varies by context—aviation considers anything above 10,000 feet high altitude, while mountaineering might set it higher.
High-altitude training helps athletes adapt to reduced oxygen.
The plane reached high altitude and leveled off.
At high altitude, water boils at lower temperatures and breathing becomes more difficult.
- mountain climbingAscending peaks on foot
- ridgeNarrow raised strip
- peakUtmost height attained
- treelineElevation limit for forests
- mountainTall natural landmass
summit · hypoxia · thin air · acclimatization · oxygen saturation · hematocrit · UV radiation · cosmic rays · snowline · glacier · pulmonary edema · hyperventilation · paragliding · dizzying · breathlessness · alpine tundra · ski resort · airplane
- Mountain Wordspeaks, summits, cliffs, valleys, glaciers
- thin atmosphereMars, Mercury, moon, low pressure, Pluto
- Bolivian AndesBolivia, La Paz, altiplano, Andes Mountains, salt flats
- Colombian AndesCordillera Central, Bogota, Medellin, Pereira, Armenia
- elevation zonesalpine zone, altitudinal zonation, death zone, alpine tundra, sea level
- Mountain Medicineacute mountain sickness, mountain sickness, hypoxia, acclimatization, pulmonary edema
high altitudelow altitude
Minimal elevation above surface
sea level · ground level · below sea level · low-lying · valley floor
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