China News Service, May 19. According to Hong Kong Sing Tao.com, the Hong Kong Observatory uploaded pictures taken by citizens near the clock in Tsim Sha Tsui on May 6 on social networking sites. It can be seen that white clouds can be seen in the blue sky, which is very eye-catching.
Screenshot of the Hong Kong Observatory's Facebook.
The observatory explained that these fine cotton-like clouds are "Altocumulus" (Altocumulus), which can be white, gray or both.
"Altocumulus clouds" come in many shapes, sometimes like shattered tiles, and sometimes appearing like waves in row after row.
Although it is called "high" cumulus, it actually belongs to the middle cloud family, and the distance between the cloud base and the ground is generally between 2000 and 6000 meters.
According to the observatory, altocumulus clouds are usually shaded and consist of thin layers, circles or rolls.
It is sometimes fibrous or diffuse in appearance, and most of the small, neatly arranged clouds are between 1 and 5 degrees in visual width.
This cloud genus is sometimes confused with "Cirrocumulus" and "Stratocumulus".
"Altocumulus clouds" sometimes have the appearance of fibrous descending wakes (flare clouds), while sunflowers and iridescents usually appear in thinner parts of the cloud.