land breezes and sea breezes - mrs. eldridge 6b science · the sea towardsthe land. this is known...
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Land Breezes and
Sea Breezes
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SPI 0607.8.1Analyze data to identify events associated with heat
convection in the atmosphere.
SPI 0607.8.2Recognize the connection between the sun’s energy and the
wind.
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High Pressure = cold, very dense air
Low Pressure = warm, less dense air
Air always moves from HIGH pressure to LOWPressure!
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Sea BreezeDuring the day, land gets heated by the Sunmuch quicker than water does. As the land becomes warmer, it heats the air in the atmosphere above it.
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Sea BreezeThis causes the air to expand, becoming less dense, and rise creating a lowpressure area.
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Sea BreezeBecause water heats up much less quickly, air above the ocean takes longer to increasein temperature resulting in a high pressure area.
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Sea BreezeWith a high pressure above the water and a lower pressure above the land, wind blows fromthe sea towards the land. This is known as a seabreeze.
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Land BreezeIn the night, land cools down much quicker than waters of the ocean does. As the landbecomes cooler, so does the air above it.
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Land BreezeThis results in air becoming denser, forming a high pressure area, causing winds to blow outward towards the sea. This is known as a land breeze.
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When do they happen?Thus, in the day we often see seabreezes, while in the evening we see land breezes in coastal regions.
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Land Breezes and Sea Breezes