Local Climate (Valley and City Climate) (Grade 12 NSC Matric Geography): Flashcards
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Practise the cards
10 cards from this deck
Aspect in valley climates
Aspect in valley climates
Direction that a slope faces
North-facing slopes in Southern Hemisphere
North-facing slopes in Southern Hemisphere
Warmer; receive direct solar radiation
South-facing slopes in Southern Hemisphere
South-facing slopes in Southern Hemisphere
Cooler; receive indirect/oblique solar radiation
Direct solar radiation effect on slopes
Direct solar radiation effect on slopes
Energy concentrated over smaller area; more heating
Anabatic winds
Anabatic winds
Warm air rising up valley slopes during the day
Thermal belts in valleys
Thermal belts in valleys
Warm zones partway up slopes where warm air rises
Katabatic winds
Katabatic winds
Cold air flowing downhill at night
Frost pockets in valleys
Frost pockets in valleys
Cold air settling at valley bottoms at night
Why houses built in thermal belts
Why houses built in thermal belts
Avoids cold frost pockets below & excessive exposure above
Warm crops placement in valleys
Warm crops placement in valleys
Thermal belts on north-facing slopes; frost-free conditions