Why are the shapes of clouds always changing?
The sun shines on the surface of the earth, and water evaporates to form water vapor. Once the water vapor is supersaturated, water molecules will gather around the dust (condensation nucleus) in the air, and the generated water droplets or ice crystals will scatter sunlight in all directions, thus creating the appearance of clouds. The aggregation of water molecules has no certain shape, so there is no certain shape, so the shape of clouds will be ever-changing.
Classification of clouds:
1, Gaoyun clan
Clouds in high clouds usually have a cloud base height of more than 6000 meters in mid-latitude, which is formed in the colder part of the troposphere. It belongs to three genera, all cirrus. At this height, water will solidify and crystallize, so this group of clouds is all made up of ice crystals. High clouds are generally fibrous, thin and mostly transparent.
2, low cloud family
Low clouds are formed in the atmosphere below 2000m, including thick and gloomy stratocumulus, stratocumulus (discontinuous stratocumulus) and thick and gloomy and rainy nimbostratus. Stratospheric grounding is called fog.
3. Direct exhibition cloud family
Direct clouds have a very strong updraft, so they can grow higher from the bottom. Cumulonimbus clouds of rainstorms and thunderstorms can start at a height close to the ground and then develop to a height of 75,000 feet.
At the bottom of the cumulonimbus cloud, when the falling cold air meets the rising warm air, it will form a breast-like cloud like a pouch. When the cumulonimbus cloud expands, it will form a thin dome-shaped cloud at the top.
Extended data
Cloud type:
Cirrocumulus: Shaped like a ripple, it is often called "Fish Scale Sky". Usually the altitude is 5000-8000 meters, which generally means sunny weather.
Altocumulus: Similar to cirrocumulus, it means good weather, but it covers a wider area, and the clouds are thicker and dark white. It usually appears after heavy rain and is suspended at an altitude of 5 000~6 000 meters.
Cumulonimbus: It's a low-level Lei Yun with dark clouds. The tower cloud can be as high as 6,000 meters, and the flat cloud at the top is called anvil cloud. Cumulonimbus clouds often bring strong storms and lightning. The upper layer resembles a false cirrus cloud and the top layer resembles a false rain cloud.
Cumulus: It is easy to identify, fluffy white clouds, like floc, floating in the air. If we are separated, it will mean another beautiful sunny day, but if it gets bigger and bigger and there are more and more front ends, it is likely to bring a sudden rainstorm. Cumulus clouds in the blue sky at sea usually indicate that they are not far from land, and the height is generally not more than 2500 meters.
Cirrus: a high-level bunchy cloud formed by ice crystals, which is why it looks pure white. Often called ponytail cloud. They usually mean sunny weather, 5000-9000 meters high.
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