What type of fog relies on wind for its formation?

Prepare for the Private Pilot License (PPL) Written Exam. Utilize our quizzes, flashcards, and detailed explanations to understand each aspect comprehensively. Ace your exam with confidence!

Advection and upslope fog formation is heavily influenced by wind, making it the correct answer. Advection fog occurs when warm, moist air moves over cooler surfaces, leading to cooling of the air and condensation. This process relies on the horizontal movement of air, or advection, which is essential for bringing moist air into contact with the cooler surface.

Upslope fog forms when air is forced to rise over terrain, such as hills or mountains. As it rises, it expands and cools, resulting in condensation and fog formation. This also depends on the movement of air, specifically the vertical component as the air is pushed upwards by the terrain.

In contrast, radiation fog typically forms during calm, clear nights when the ground loses heat rapidly, allowing the air in contact with it to cool and condense. Its formation is less about wind and more about a temperature drop, which differentiates it from advection and upslope fog. Ice fog is primarily found in extremely cold air, where water vapor sublimates directly into ice crystals, while freezing fog involves supercooled liquid droplets that freeze upon contact with surfaces but also does not primarily rely on wind.

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy