You do not need to engage in in-depth observations of natural science, to notice how diverse are the clouds.
In various books and encyclopedias can be found quite different descriptions of all kinds.
So it makes sense to turn to the International Classification.
The physical meaning of the phenomenon
From the standpoint of clouds of physics - are productscondensing vapor, visible from Earth to the sky. This minute suspended water droplets in the atmosphere or ice crystals which fall in the enlargement in the form of precipitation. Usually, clouds form in the troposphere.
There is an international classification of clouds inby which they are divided into types and subtypes. Under the terms of the formation of all possible clouds are divided into four categories: convection, wavy, sliding ascent and turbulent mixing. Stand out the so-called mother of pearl and silver clouds - they are formed in the uppermost layers of the stratosphere.
The first category includes thermal cloudsconvection, formed as a result of uneven heating from the bottom, and dynamic cloud convection resulting from the forced air lift to the mountains.
Wavy called clouds, formed byinversion in anticyclones. Clouds rising slip obtained by the meeting of cold and warm air masses. Finally, the turbulent mixing clouds appear when picked up by the wind air efforts.
The shape of the clouds are also divided into fourcategory, each of which in turn is divided into several subgroups. The first category - low clouds: stratus, stratocumulus, nimbostratus and broken-layered. They are located at a height not greater than 2.5 km from the earth, most of them has a thickness of 200 to 800 m are formed by different reasons. Due to vapor condensation on the warm water bodies due to the wetting of the overlying sediments air clouds, resulting from the cooling air moving over the cold ground.
The second - vertical development clouds: cumulus and cumulonimbus. This dense volume and extremely picturesque clouds.
Third - middle clouds: Altocumulus and altostratus. They are formed as a result of air cooling with slow upward tilting movement of air masses. Precipitation rarely give.
Fourth - the cloud top tier: Cirrus, Cirrocumulus, Cirrostratus. As the name implies, cirrus clouds have a fibrous structure. They are thin, transparent, and sometimes have a more dense formations in the form of flakes. If such clouds precipitation falls - which is rare - they will evaporate before it reached the Earth's surface.