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Published byGeorgiana Nelson Modified over 7 years ago
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Air molecules travel from areas of high pressure (density) to areas of low density.
WHY??? Because crowded (High pressure) molecules want to spread out
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H L
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Which means air molecules travel from areas of cold air (H) to areas of warm air (L).
WHY??? Because cold molecules are condensed and want to spread out.
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When we pulled the book back we created a low pressure:
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The path from High Pressure to Low Pressure is not necessarily straight!
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Wind travels clockwise around a high pressure and counterclockwise around a low.
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Wind travels clockwise around a high pressure and counterclockwise around a low.
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The flow of H to L is most evident in land and sea breezes.
A Convection Current is this Natural flow from High to Low.
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During the day, the beach gets hot (making low pressure) and
The heat rises. The air over the water is cooler and creates A high pressure. The cool air of the ocean replaces the warm air over the land in what is called a Sea Breeze.
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During the night, the beach gets cold (making high pressure) and the cool air falls. The air over the water is warmer and creates a low pressure. The warm air of the ocean replaces the cool air over the land in what is called a Land Breeze.
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South when looking at a globe.
Next, the air not only rises and falls vertically in the atmosphere, it travels to the north and South when looking at a globe.
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The movement of air is made complex in many ways
The movement of air is made complex in many ways. First, the earth is spinning (rotating)!
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Try walking on a turn table…
Try walking on a turn table…. That’s what the coriolis effect causes on Earth.
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