After spending the day at the seaside, you will notice a drop in temperature that occurs until noon. This happens due to the formation of a breeze, which foams on the waves of the lambs and cools the heated bodies of tourists.
The breeze is a low sea breeze that is especially acute on the coast. This movement of air occurs due to the fact that the earth warms up more than the sea, and thereby creates a thermal flow. The air rises and fills the resulting empty space.
The land air stream is constantly replenished with denser and colder sea air. The resulting breeze rises only over land, so the pressure in this place decreases. The difference in pressure creates air circulation.
The sea breeze is not always the case and depends on several factors. There should be a temperature contrast of more than three degrees between land and sea, where the land is warmer. The greater the difference in temperature, the stronger the breeze will be felt.
Usually daytime sea breeze blows at a speed of 18-36 km / h, but there are also stronger or weaker winds. At dawn, there is calm or a slight remnant of the night breeze near the coast). The air flow at night will be stronger if the coast is bordered by various heights (hills, mountains). The sea breeze reaches its peak in the late morning or afternoon, depending on the difference in temperature between land and water.
The sea breeze is felt at a distance of 200-300 meters from the coast. The strength and nature of such a wind also depends on the boundary layer. The deeper it is, the less temperature contrast is needed for the sea breeze to form. A thin boundary layer is located closer to the poles, a deeper one - at the equator.
The timing of the sea breeze also depends on the moisture content of the soil. After the rain, the land is very humid, so first the solar energy will be used to evaporate the water, and only then the land will begin to warm up. This will greatly delay the time the breeze starts to form. On the contrary, the weather will speed up the creation of the sea stream and make it stronger.