explain sea breeze and land breeze
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Answer
A sea breeze describes a wind that blows from the ocean inland towards land. This breeze occurs most often in the spring and summer months because of the greater temperature differences between the ocean and nearby land, particularly in the afternoon when the land is at maximum heating from the sun.
During the day, the sun heats up both the ocean surface and the land. Water is a good absorber of the energy from the sun. The land absorbs much of the sun’s energy as well. However, water heats up much more slowly than land and so the air above the land will be warmer compared to the air over the ocean. The warm air over the land will rise throughout the day, causing low pressure at the surface. Over the water, high surface pressure will form because of the colder air. To compensate, the air will sink over the ocean. 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 the ocean.
At night, the roles reverse. The air over the ocean is now warmer than the air over the land. The land loses heat quickly after the sun goes down and the air above it cools too. This can be compared to a blacktop road. During the day, the blacktop road heats up and becomes very hot to walk on. At night, however, the blacktop has given up the added heat and is cool to the touch. The ocean, however, is able to hold onto this heat after the sun sets and not lose it as easily. This causes the low surface pressure to shift to over the ocean during the night and the high surface pressure to move over the land. This causes a small temperature gradient between the ocean surface and the nearby land at night and the wind will blow from the land to the ocean creating the land breeze.
Answer:
During Day time when the sun shines the solid land gets heated to a higher temperature much more quickly than the liquid sea water. The hot air over the land rises upwards and cooler air from over the sea moves towards the land in the form of cold breeze(to take the place of hot rising air).
● The breeze blowing from the sea towards the land is called Sea breeze.
The wind blowing from the land towards the sea is called the land breeze.
During the night time, the land in the coastal areas cools down faster than the sea. The air above the sea is hotter than the air above the land.
Therefore the air above the sea rises and the air from the land being cool flows towards the sea. This results in the land breeze.
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