Fog

=About Fogs= =By: Dalena Nguyen Thai=

Fog is from mist that it reduces low visibility, for example when a person is driving in a car and its very foggy outside, its hard for people to drive so they must put on their parking lights to see. Fog decrease people visibility to see the direction they are headed too. This is because fog is a cloud that is in contact with the ground. A cloud can relate to a fog because when part of a cloud is suspended from the air above the ground, it makes it more visible which is why they call it a fog.

You can define a fog as a surface cloud that’s thick, which causes major traffic. It will be a thick mist if the clouds have water particles, or hard smoke. Fog is the name given to any solid or liquid particles in the surface layers of the atmosphere, which is, render surrounding objects notably being together invisible depending on the distance.

Vapor condense to fine particle of water in the lower atmosphere that differs from clouds only being near the ground.

Fogs are form when the difference between temperature and dew pint is at 2.5C or 4F.

It begins when water vapas break into tiny particles droplets in the air. The small droplet that are broken from it makes the water hang in the atmosphere visble to build a fog.

There are different type of fogs, fogs can be born in different numbers of way. It depend on how the cooling that cause condense to occur.

__Here are some different type of fogs__


 * Radiation:** is form by the cooling of land after a sunset has appear for some time. The ground produces condensation whenever there is a heat conduction.


 * Ground Fog:** Is a fog that obscures less than 60 percent of the sky and does not extend the bases of any overhead clouds.


 * Advection Fog:** happens when moist air passes over a cool surface by the wind thats being blown on it, the wind is what keeps it cool.


 * Steam Fog:** is created by cold air passing over warmer water or moist land. It usually cause fogs to freeze.


 * Valley Fog** : forms up in the mountains, it usually happens in the winter. It is cause by the cold air settling into the valley with warmer air passing over the high mountains.


 * Freezing fog:** occurs when liquid droplets freezes to the surface forming white soft.


 * Frozen Fog:** is know as a ice frog, when its frozen it tends to turn into tiny crystals.


 * Hail Fog:** occurs in hail due to decreased temp and increased moisture leading to saturation in a very shallow layer here on the surface. It sometimes occur when the weather is warm.

Here are some pictures of different type of fogs

There are many fogs that happen in different type of city during the year but the 3 place that has the most fogs are - California ( tule fog) - Chile (camanchacas) -Britain (pea soup fog)

if you want to know if there's going to be a fog it depends on the weather which are - fog season -mist -smog -white out

Fog are located anywhere that has cold ground or major mist, it always depends on the weather and how the heat and the cooling ground is combine together to make all different types of fog.

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