A local wind during the day, owing to the wind heading up, is called what?

Prepare for the OUPV Navigation Rules Test. Use flashcards and multiple-choice questions to deepen your understanding, with hints and explanations for every question. Ace your test!

A local wind that develops during the day, resulting from the uneven heating of land and water, is known as a sea breeze. During the day, the sun heats the land more quickly than it heats the water. As the temperature of the land rises, the air above it also warms and becomes less dense, causing it to rise. This creates an area of lower pressure over the land. Meanwhile, the cooler air over the water, which is denser and at a higher pressure, moves in to replace the rising warm air over the land. This movement of air from the sea toward the land is what we call a sea breeze.

In contrast, a land breeze occurs at night when the land cools more rapidly than the water, resulting in cooler and denser air over the land that moves toward the warmer water. Coastal wind and wave breeze are terms that may refer to similar phenomena but do not specifically describe the localized daytime wind effect caused by the thermal differences between land and sea. Therefore, the term that most accurately describes the daytime local wind resulting from these processes is indeed a sea breeze.

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