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10 Cards in this Set
- Front
- Back
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scattering (of EMR by air mols)
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light hits air mols, deflected in other directions
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why is sky blue?
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air bounces blue molecules more efficienctly than others
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why is sunset red?
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sun is farther away, more and more blue light scattered away until you see red
-longer path, blue light gets taken out |
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why are clouds white?
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scatter all wavelengths to same degree (water reflects a lot)
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50% of earth's surface
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covered w/ clouds
albedo= 50% cloud= small water drops |
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high clouds
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wispy, feathery, cold, thin
-small albedo -sun light not reflected that much *warm the planet |
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low clouds
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warm, dense
-high albedo -block off solar radiation *cool the planet |
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aerosol/haze
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increase albedo
surface cooling |
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climate change could lead to...
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1 temp change
2 more clouds, rain 3 melting ice caps, glaciers 4 increase sea levels |
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natural causes of climate change??
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1. intensity of sun fluctuates, too weak to be noticed
2. milankovitch cycles- variation in earth's orbit, too small a scale (not long term effect) 3. volcanoes- ash blocks sunlight, cools down surface |
