冰盖体积计算器
使用冰盖体积计算器估算极地冰盖和冰川的体积变化。输入面积和厚度数据，计算冰量变化趋势及其融化后对全球海平面上升的潜在影响。
Ice Volume
3,420,000 km³
Ice Volume vs Ice Sheet Area
公式
Ice Sheet Volume and Sea Level
Ice sheets hold vast quantities of frozen water. If melted, this water raises global sea levels.
Formula
Volume (km³) = Area (km²) x Thickness (m) / 1000
Water Equivalent = Volume x Ice Density / Water Density
Sea Level Rise (m) = Water Equivalent (km³) / Ocean Area (km²) x 10^6
The Greenland ice sheet contains about 2.85 million km³ of ice, equivalent to roughly 7.2 m of sea level rise.
计算示例
The Greenland ice sheet has an area of 1,710,000 km² and average thickness of 2,000 m.
- 01Volume = 1,710,000 x 2,000 / 1,000 = 3,420,000 km³
- 02Water equivalent = 3,420,000 x 917 / 1,000 = 3,136,140 km³
- 03Sea level = 3,136,140 / 361,000,000 x 1,000,000 = 8.69 m
- 04Note: actual Greenland SLE is ~7.2 m due to non-uniform thickness
常见问题
How much ice is in Antarctica vs Greenland?
Antarctica holds about 26.5 million km³ of ice (58 m sea level equivalent), while Greenland holds about 2.85 million km³ (7.2 m equivalent).
Why use ice density instead of water density?
Ice is less dense than water (917 vs 1000 kg/m³). Converting to water equivalent gives the actual volume of liquid water that would be released.
How fast are ice sheets losing mass?
Greenland loses about 270 billion tonnes of ice per year, and Antarctica about 150 billion tonnes per year, both rates accelerating.