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1) Under what conditions does advection fog form? Cool air moves over warm water

ID: 295925 • Letter: 1

Question

1) Under what conditions does advection fog form?

Cool air moves over warm water; moisture evaporates from the water to produce fog.

Humid air moves up a gradually sloping plain or up the steep slopes of a mountain.

Warm, moist air moves over a cool surface. Warm air moves over cold air that is close to the dew point and produces fog. Cool, clear, calm nights, when Earth's surface cools rapidly by radiation

Cool air moves over warm water; moisture evaporates from the water to produce fog.

Humid air moves up a gradually sloping plain or up the steep slopes of a mountain.

Explanation / Answer

Warm air moves over cold air that is close to the dew point and produces fog is the main condition of advection fog. Because it forms when the surface temperature lowered to the dew point temperature and warm water flows over the cool air the the temperature becomes lowered to the dew point. at this temperature saturation occurs and thus the water vapour condenses to form advection fog.