The Major Stores of Water (AQA A-Level Geography): Flashcards
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10 cards from this deck
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Practise the cards
10 cards from this deck
Hydrosphere
Hydrosphere
Water on or close to Earth's surface
% of Earth's water in oceans
% of Earth's water in oceans
97%
% of Earth's water that is fresh water
% of Earth's water that is fresh water
3%
% of fresh water in ice caps & glaciers
% of fresh water in ice caps & glaciers
79%
Cryospheric water
Cryospheric water
Water locked up on Earth's surface as ice
Five main types of cryospheric water
Five main types of cryospheric water
Sea ice, ice sheets, ice caps, alpine glaciers, permafrost
Ice sheet definition (area)
Ice sheet definition (area)
Glacial land ice >50,000 km²
Permafrost definition
Permafrost definition
Ground at/below 0°C for ≥2 consecutive years
Discharge (rivers)
Discharge (rivers)
Water flow past a point in m³s⁻¹ (cumecs)
Water table
Water table
Depth where soil pore spaces become fully saturated