Question
Differentiate between Land and sea breezes with the help of a diagram.
Solution
Sea Breezes: In the day, the land is heated faster than water. The air above land is heated more than that at sea. The air after being heated becomes lighter and rises. The pressure on the land is lower than that on the sea. The winds move from high to low-pressure areas. Hence the winds on the sea move towards the land and the air above the land rises and moves towards the sea at higher altitudes. Sea breeze is cooler and therefore when it reaches the land it cools the atmosphere and relieves people from the heat.
Fig. Sea Breezes
Land Breezes: The condition is different in night. Land is cooler than the sea in the night. The pressure of air is higher on the land than on the sea. Winds blow from the lands towards the seas and the air of the sea brings lighter air movement towards land at high altitudes and descends down on the land. The sea becomes cooler on account of the cool breezes from the land. The breezes have a limited area of influence and therefore have a local importance.
Fig. Land Breezes
Land Breezes: The condition is different in night. Land is cooler than the sea in the night. The pressure of air is higher on the land than on the sea. Winds blow from the lands towards the seas and the air of the sea brings lighter air movement towards land at high altitudes and descends down on the land. The sea becomes cooler on account of the cool breezes from the land. The breezes have a limited area of influence and therefore have a local importance.
Fig. Land Breezes
