Sources of Energy (AQA A-Level Geography): Flashcards
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Practise the cards
10 cards from this deck
3 key energy sources in hot desert systems
3 key energy sources in hot desert systems
Insolation, wind, and run-off
Angle of incidence
Angle of incidence
Angle at which solar radiation hits Earth's surface
Effect of high angle of incidence
Effect of high angle of incidence
Sun's energy concentrated onto smaller area, intense heating
Hours of daylight in hot deserts year-round
Hours of daylight in hot deserts year-round
Approximately 12 hours
Role of latent heat in moist environments
Role of latent heat in moist environments
Evaporating water absorbs heat, rises, keeps ground cooler
Why arid environments become excessively warm
Why arid environments become excessively warm
Lack of moisture means energy heats ground & air directly
Annual rainfall defining arid/hot desert areas
Annual rainfall defining arid/hot desert areas
Less than 250 mm
Overland flow (run-off)
Overland flow (run-off)
Rapid water movement across land surface during/after rainfall
Sediment cell in deserts
Sediment cell in deserts
Sediment transported & deposited within desert boundary
Two main sediment inputs into hot deserts
Two main sediment inputs into hot deserts
Weathering of bedrock & fluvial origin (from rivers)