Broadly speaking, there are three main forms of clouds: a large mass of cumulus clouds, a large patch of stratus, and fibrous cirrus. Pen "Fun" Pavilion www.biquge.info

The scientific classification of clouds was first proposed by the French naturalist Jean-Baptiste Lamarck in 1801. In 1929, the International Meteorological Organization (IMO) divided clouds into ten genera according to their shape, composition, and reasons for their formation based on the classification system formulated by the British scientist Luke Howard in 1803. These ten cloud genera can be divided into three cloud families according to their cloud base height: high cloud family, medium cloud family, and low cloud family. Another division separates the cumulonimbus clouds from the low cloud family, which is called the orthoseminal cloud group. The cloud base height used here is only available at mid-latitudes. (Except for the United Kingdom and the United States, the World Gas Organization and other countries generally use the International System of Units).

High clouds form at an altitude of more than 6000m, in the cooler part of the troposphere. There are three genera, all of which are of the cirrus species. At this altitude, water freezes and crystallizes, so the clouds of this group are made up of ice crystals. High clouds are generally fibrous, thin and mostly transparent.

●Cirrus clouds (ci, cirrus) have a silky structure, silky luster, and separate scattered clouds. The cloud is usually white and shadowless, and is silky, feathery, horsetail-like, hook-shaped, clustered, flake-like, anvil-shaped, etc. Cirrus clouds have less chance of seeing halos, and even if they do, halos are incomplete. In the northern and western highlands of our country, cirrus clouds sometimes fall with scattered snow in winter. Before sunrise and after sunset, cirrus clouds often appear bright yellow or orange in the reflection of sunlight. In the severe cold season in the northern and western plateaus of China, a kind of cloud with a low height is sometimes encountered, which looks like Stratocumulus clouds, but has the characteristics of silk wisp structure, soft silky luster, and sometimes halo, which should be recorded as cirrus clouds. If there are no cirrus features, it should be recorded as Stratocumulus. Cirrus clouds are further divided into 4 categories:

1Cirrus trichophyllum (cifil): Fine, scattered clouds with filaments, feathers, and horsetails. Sometimes, even if the silk is aggregated into a long strip with a certain width, the entire silk structure and silky luster are still very visible.

2 Cirrus denser: thicker, patchy Cirrus clouds, sometimes dark in the middle, but the marginal parts of Cirrus are still distinctive.

Cirrus 3 (ciunc): shaped like a comma symbol, with small clusters or hooks at the upward end of the filament.

4 Cirrus pseudocirrus (cinot): formed by the top of Cumulonimbus capitarius detached from the parent body. The clouds are large, thick, and sometimes anvil-like.

●Cirrocumulus (CC) is a cloud sheet or cloud composed of small clouds of scales or globules, often arranged in rows or groups, much like small ripples caused by a breeze blowing across the water. White with no shadow and a silky sheen. Cirrocumulus can evolve from Cirrus and Cirrostratus. Sometimes Altocumulus can also evolve into Cirrocumulus. The edges of the entire Altocumulus layer, sometimes with small Altocumulus patches, are similar in shape to Cirrocumulus, but do not mistake them for Cirrocumulus. Only one or more of the following conditions can be counted as cirrocumulus.

1 and cirrus or cirrostratus clouds.

2Evolved from Cirrus or Cirrostratus.

3. It does have the characteristics of soft silk and silk wisps of cirrus clouds.

● Cirrostratus (CS, Cirrostratus)

The white and transparent cloud curtain, the sun and the moon are clearly outlined when passing through the cloud curtain, and the ground features have shadows, and there are often halos. Sometimes the structure of the clouds is so thin that it is barely visible, giving only a milky white color to the sky; Sometimes the structure of the silk strands is faintly discernible, as if it were messy silk. In the northern and western plateaus of China, there can be a small amount of snow in winter Cirrostratus clouds.

Thick cirrostratus clouds are easily mixed with thin Altostratus. For example, the sun and the moon are distinctly defined, and the ground features have shadows or halos, or there are wisps of silk structures that are Cirrostratus clouds; If only the position of the sun and the moon is identified, there is no shadow or halo on the ground, and it is a high-level cloud. Cirrostratus clouds can be further divided into 2 categories:

1 Cirrostratus thin-curtain (Csnebu): a homogeneous cloud curtain, sometimes so thin that it is almost invisible, only because of the halo that it proves its existence; When the cloud curtain is thicker, there is no obvious structure, but the outline of the sun and moon is still clearly visible, there is a halo, and there are shadows on the ground.

2Cirrostratus fibratus (CSFIL): Cirrostratus with a distinct white filament structure and uneven cloud thickness. -------introduction

Facing more than a dozen tracking clouds surrounding him, the wind was not frightened, the soles of his feet moved steadily, and the qigong covered his whole body, so that the body was completely released, and in the face of the flying track cloud life form No. 1, he clenched his fists and swept out, directly smashing the head of the tracking cloud No. 1 in mid-air, killing in seconds. Head after head, the more the wind kills, the more refreshing the mood becomes, although there are small injuries from time to time, but there is no major problem. It took half an hour for more than 30 small tracking clouds to be killed.

The corpses that had not dissipated around the air were scattered all over the air.

The wind suddenly panted like a cow, her face was like paper, her eyes were scattered, and she looked extremely painful, and she was stunned to burst Yin Shan's tears, looking at him in unbearable pain, Yin Shan didn't know what to do, she didn't know what to do, she didn't know that it would be so dangerous here, and if it was so dangerous, they would definitely not come.

"You help me protect the Fa, I use qigong to heal my wounds, don't let people disturb me." Feng panted and said loudly, his eyes rolling secretly. After saying that, Feng immediately meditated up and gave his full attention.

"Okay, okay, you heal quickly, I'll help you protect the Fa......" Yin Shan didn't dare to slack off in the slightest, and immediately got up and guarded the surroundings.

"Haha...... God help me, haha......" A butterfly came with the wind, landed lightly on the clouds, smiled coldly, and pulled out the conjured steel broadsword and walked towards the wind.

Shan Liankong, Xiyue, and Wu's faces changed.

Shan Liankong represents darkness, Xiyue represents light, fog represents the evil spirit, and the shock wave of the three blacks, three flames, and three evil spirits rushed towards the butterfly that had just appeared.

However, this is just like the realm of this butterfly, and the cloud we stepped on rose a cloud of huge shields to block and rebound the shock wave of the three blacks, three flames and three evil spirits composed of dark light and evil spirits, and the three of them crossed their fists to form an X-shape, blocking the impact of the rebound.

Also, with the butterfly's mind here, there was a thundercloud formation that trapped the three of Shan Liankong to death.

"You ,,, you ,,,," Yin Shan saw the butterfly, and her face turned pale with fright, a feeling hit her heart, and her body trembled involuntarily. She was really scared. Seeing butterflies can be imagined. The butterfly licked her lips with her tongue exposed, looked at Yin Shan with a lewd smile, and said, "Yin Shan, I can't imagine that you have been hiding for so many years, and the little Una cultivation is so profound, and the hiding is really deep enough." ”

"If you obey me today, I'll let you get everything you want. What do you think? With me, you won't have to worry about being scared in the future. In our Cloud Butterfly Clan, and even in the entire time and space, no one dares to bully you. ”

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