Selasa, 17 Mei 2011

Cloud Types and Classification

Cloud Types and Classification


Cloud Types

1. Commulus-Cloud, the clouds gather and form a horizontal bottom

2. Stratus-Cloud, which is thin clouds covered the sky is widespread and evenly

3. Cirrus-Cloud, the cloud is an island, smooth and fibrous, often there are ice crystals but did not cause rain


Clouds and their classification

The form is like cotton and unique variety is a beautiful sight in the sky as the sky was bright. But for the pilots, the cloud could pose a threat to aviation if not carefully identify. By definition, cloud is a collection of water vapor in the sky can be derived from evaporation from the sea, lakes, or rivers. A collection of this water vapor can also cause rain. While the cloud is located very high, causing water vapor to freeze and fall to earth as snow. Internationally, the clouds are classified based on the discovery of the British meteorological experts, Luke Howard in 1803, a group of clouds:
-Stratus
-Cumulus
-Cirrus

In addition to three that, Howard also added Nimbus cloud, often called the rain clouds. Groups including the Nimbus cloud cloud Nimbusstratus and Comulonimbus. Clouds can also be classified on their location, namely:

Low-Cloud, which located from sea level to a height of two kilometers (7.000 feet). Fog is included in this group.

Medium-Cloud, located between 2 km to 6 km (20.000 feet).

High-Cloud, located above the 6 km further. Because at that height the temperature reached -24 degrees Celsius, the water vapor in the cloud particles become frozen and it is a cloud which can cause hail / snow.

The clouds that have a variety of unique shapes and properties on their own. In a class of low clouds is called Comulonimbus the International coded flights Cb. Its is located at low altitude, very large clumps, and usually dark colored. Cb is very dangerous because they contain electric currents and stir with a powerful air. The pilot was avoided because the fatal consequences if a plane flew into the clouds Cb. In addition, the class of low cloud is called Cumulus (Cu), Stratus (St) and stratocumulus (Sc). Cu is generally seen as a pile of cotton in the sky. The amount is not fixed, sometimes thick, but more often small and thin. Medium St location is higher than the copper color is slightly brown and tend to thin. Sc highest form of waves and sometimes in the form of small pieces. There are three types that include cloud medium is Nimbostratus (Ns), Altostratus (As), and Altocumulus (Ac). Ns is thick with dark clouds and often contain rain or snow. As the clouds above it is a form of unstable, thick sometimes dark, sometimes bright light. While Ac brownish and tends to thin because of a tendency cloud, the higher the more tipis.Tiga high cloud types, namely Cirrostratus (Cs), Cirrocumulus (Cc), and the highest cloud of all clouds of Cirrus clouds (Cs). Thin, white, and contains particles of ice. These particles cause an optical effect when exposed to sunlight.
Cloud Forms
Cloud shapes vary depending on the weather and altitude. But the main form there are three types, namely, the multiple layers in Latin called stratus, which forms fibers fibrous-called cirrus, and a lumpy called cumulus (spelling Indonesia: stratus, Sirius, and cumulus). In the area of ​​low (less than 3,000 m) the lowest, stratus clouds covered the mountain peaks that are not too high. In the lower central region, strato-cumulus clouds form, and that near 3000 m altitude cumulus clouds form. Large and thick clouds in low areas called kumulo potentially-nimbus rain, thunder and lightning caused.
Clouds can form at high altitude on the mountain over 3,000 m high, forming an umbrella over the top. For example, on Mount Ciremai (3078 m), the peaks in Irian pegununganJaya Wijaya whose height between 4000-5000 m, even always covered with snow. Similarly, Mount Fuji (3776 m) peak is always covered with brilliant white snow is very beautiful. At the height of this medium can form alto-stratus clouds are rows and rows, alto cumulus and alto-Cyrus.
What about the clouds in the area of ​​high (above 6,000 m)? There are formed the Syro-stratus clouds that appear as Teja around the sun or moon. Also formed the Syro-cumulus clouds that form extensive pieces pieces unfold. Also can form a thin cloud Cyrus bertebar like smoke.

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