Land and Sea Breezes

1. Land and Sea Breezes Ann Chapman, Grace, Hayden, and Mary Ellis

2. Sea Breezes… • Land warms up faster than water. • Warm air rises forming low pressure. • Low pressure air is warm, light and not dense. • Cool air over the water(high pressure) moves toward and replaces the warm rising air. • This is called a sea breeze!

3. Land Breeze at Night… • The land cools faster than water. • Air over land becomes cooler than air over water. • As warm air over water rises, cool air from the land moves toward the water replacing it. This is called a land breeze.

4. More About Breezes • A sea breeze, once it starts, has a cooling effect not only on living things but also on the lan. Unequal heating of air over land and water results in breezes close to the shore. While the land is warm during the day, the air above it rises. As the land cools off at night, air pressure over it gets stronger, and a chilly land breeze blows out into the sea.

5. When are the breezes the strongest? During the middle of the day, the breeze is consistent and is a powerful wind.

6. Conclusion… • Sea breezes occur during the day and the wind blows clockwise, from sea towards land. • Land breezes occur during nighttime and blow counterclockwise, from land towards the sea. • Land and sea breezes occur due to uneven heating.

7. References • http://science.jrank.org/pages/3800/Land-Sea-Breezes.html • http://wiki.answers.com/Q/What_causes_land_breezes_and_sea_breeze