Why is there fog on the lakes? Detailed answer

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Why is there fog on the lakes? Detailed answer

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Why is there fog on the lakes?

Fog, dew and clouds are directly related to each other. This or that state - fog, dew or fog - can be caused by any one change in conditions: for example, the presence or absence of air currents.

Let's look at why this happens and why fogs appear in some places. Fog particles are very small - less than 0,001 millimeters. When there is thick fog in front of you and you cannot see anything in front of you, this means that in one cubic centimeter of fog there can be at least 1227 such particles.

For fog to form, moisture must leave the air and condense. This means that the air must be cooled somehow, because cold air cannot hold as much moisture as warm air. When the air cools below a certain point, which is called the saturation point, or dew point, then fog begins to form. The formation of fog also requires that cold air be mixed with warm air by air currents.

If the air is still, then the cold air will accumulate near the ground, and dew will appear. If there are rapidly ascending air currents, cooling will occur high in the air, and then clouds will appear. Therefore, the air currents mixing cold air with warm air must not be too strong for fog to appear. This can happen when a mass of warm air passes over cold land or a cold body of water. It can also be the other way around when cold air passes over warm water.

The latter case is possible in the early autumn morning near water bodies such as lakes or ponds. Cold air smoothly mixes with warm streams, and familiar fogs appear that hang in the air above the reservoirs.

Author: Likum A.

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