explain how land and sea breeze originate
Answers
Answer:
The wind will blow from the higher pressure over the water to lower pressure over the land causing the sea breeze. The sea breeze strength will vary depending on the temperature difference between the land and theocean. At night, the roles reverse. The air over the ocean is now warmer than the air over the land
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Answer:
The explanation is quite detailed. But if you want a standard definition, it is worth a read.
Explanation:
Before understanding land and sea breeze, let me just tell about breeze. Breeze is wind at very low speed. In general, winds generate due to difference in temperature or pressure between different regions. Air always moves from high pressure to low pressure (you can easily picturise that... think about a situation when two people push each other. The one who gives higher pressure always wins... similarly the air in the high pressure zone wins over that in the low pressure zone, and occupy their place). Another thing you need to know is that cold air is denser than hot air, and that things always float over denser fluids... like oil floats over water.
Now if we look at a daytime in a beach, the sandy beach gets hot faster than the sea. For this reason, the air over the beach gets hot faster and rises up (i.e. floats over the cold air, being less dense). Since the air above the beach rises, there remains a temporary vacuum space there, which is then filled by the cold air over the sea, which had relatively higher pressure. When the air rushes to the land, we feel it as a breeze. And since it originates from sea, we call it sea breeze.
But during night, it is the opposite. This is because of the fact that sand cools faster than water. So during night, the air above land rushes to the sea, and thus is called land breeze.