![]() That is called mountain breeze, and it is a lot common in the colder months when there is less warming from the sun. ![]() At this time, the air at the valley floor is a lot warmer (low pressure) and forced to give way to colder air moving down the slope towards the valley floor. So the air at the upper slope of the mountain cools off very quickly and becomes dense. It usually occurs during the summer days. As the name suggests, Sea breeze refers to the breeze or wind blowing from the sea towards the land. Thus, at this time, the sea air is cooler and heavy and it flows towards the land. What is a mountain breeze?Īt night, it is a lot cooler as the sun goes to sleep. During the day time, when the sun is up, the land air heats up faster whereas the sea air heats slowly. This condition generates a breeze which we call Valley breeze, and it is common during warmer months when there is a lot of heating from the sun. Land breezes and sea breezes arise because of differential heating between land and water surfaces. Low pressure is created at the top of the mountain, and high pressure from the cooler air below forces a cool breeze to move upward. A sea breeze is a wind blowing from the water onto the land. The warm air over the slopes reduces in density. What is a valley breeze?ĭuring the day, air over the mountain slope heats up more than the air at the foot of the mountain. Coastal mountains and hills block some of the tidal force, which results in lower than average tides in those areas.In a similar behavior as land and sea breezes, mountains (hilly) and surrounding valleys also have breezes called Mountain and Valley Breezes. Illustrate the airflow of land breeze and sea breeze. Differentiate land breeze and sea breeze. When the moon is on the opposite side of Earth from the sun, its gravity pulls less hard on the water. Most Essential Learning Competency Account for the occurrence of land and sea breezes, monsoons, and intertropical convergence zone (ITCZ) (S7ES-IVF-7). When the moon is between the Earth and the sun, its gravity pulls harder on the water closest to it. The ocean’s tides are caused by the gravitational pull of the moon and sun. If you can do that, you’ll be able to make more accurate predictions about which way the wind will blow. The key is to pay attention to both the land and water temperatures, as well as the time of day. How Temperature Affects Wind Direction?Īs you can see, temperature plays a big role in determining the direction of the wind. ![]() The air above the water rises and is replaced by cooler air from over the land. This causes a pressure difference in the opposite direction. The land cools off faster than the water. This wind is called a sea breeze.Īt night, the situation is reversed. The air above the land rises and is replaced by cooler air from over the water. This causes a pressure difference between the two surfaces. The ground heats up quicker than the sea during the day. The fundamental cause of sea and land winds is the temperature differencesl.
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