question about land and sea breezes?

Question

Why do land and sea breezes occur and which direction do the breezes move in the summer and winter?

I think they occur because heat rises in the day and then cools at night by descending back to the surface..but I'm not sure about the second part of the question. Can someone help me out?

Answer 1

Sea breezes occur when the land is warmer and releases more heat than the sea. This will most likely occur during the day. Air rises and creates a low pressure over the land. The air parcel, which is now higher up in the atmosphere, travels and cools over the ocean then sinks, creating high pressure over the ocean. The air in this high pressure area will want to go toward the low pressure area over the land. As air goes from high to low pressure, wind is "created".

The opposite of this happens at night, usually, and is called a land breeze.

In the summer, it is more likely that the wind will go from sea to land because of the aforementioned reasons. In the winter, the wind is more likely to be the opposite way (land breeze) during the day because the sea is warmer than the land.

Answer 2

sea breeze is when the sun is up and the land heats up faster than water thus the air above it goes up and cold air replaces the air making a convection current. land breeze is when the sun is down and the land cools faster making the sea warmer. and air above sea goes up cold air above land replaces it and it makes another convection current. Sea breeze is when you are on the land and you face the sea and wind is blowing in your face.

Answer 3

They move towards sea during night and vice-versa . They are only local breeze's , not international.Wind is moving air. The Sun heats up some parts of the Earth more than others and the wind spreads this heat more evenly around the world.



Air moves because of differences in pressure around the world. It blows from a high- pressure area to a low- pressure area.



Let's focus on a few types of winds. There are 3 major types of winds: upper winds, surface winds and local winds.



1. Upper Winds



Upper winds can be found at least 10 km above the ground, such as jet streams.



Jet Streams



Jet streams are very strong winds blowing about 10km above the Earth. They can be up to 4, 000 km long but no more than 500km wide. They were not discovered until World War II when pilots found their air speed reduced when they were flying against the jet stream.







Surface Winds

. Surface Winds



Surface winds refer to the winds which are blowing near to the Earth's surface, usually you can find it several km above the ground, such as trade winds.



Trade Winds



The trade winds are steady winds flowing towards the Equator. In the 18th century sailing ships used them as guides for crossing the Atlantic Ocean. Columbus might never have discovered America in 1492 without the trade winds'

3. Local Winds



Local winds occur in a narrow region, e.g. land and sea breezes, which are found along the coastal areas.



Sea Breezes and Land Breezes



On a hot, sunny day the land heats up more quickly than the sea. Because of this air rises over the land and cool sea breezes rush in to replace it. This is called Sea Breeze.



By evening sea breezes can reach 200 km inland. At night land cools down more quickly than the sea so the breeze blows out from land to sea.

Answer 4

You are right on the first part. It also has to do what what wind is; a movement of air from a high pressure to a low pressure.



As for the second part, they remain the same, though not as strong. The water will remain a good conductor and will retain heat, thus becoming a high pressure.



Hope this helps!