Meteorology-cloud observation

? Cloud is an important meteorological element that constitutes weather phenomena. Clouds are tiny and dense water droplets or ice crystals suspended in the air. Clouds are formed by the cooling, condensation or sublimation of water vapor in the air.

? It's interesting to look up at the changes of clouds every day. Since you like to watch clouds, you should have some knowledge about clouds when you watch them.

? One: cloud cover. Divide the sky into ten equal parts and see how many tenth of the sky is covered by clouds. Look south first, and see how many fifths of the clouds in the southern half of the sky account for. Then do the same thing, and see how many fifths of the clouds in the northern half of the sky account for, and then calculate the total cloud cover. Cloudy 0 ~ 2 sunny; It is partially cloudy from 3 to 5 days; Cloudy from 6 to 9 days; It is cloudy above 9.

? Cloud height: the vertical height from the ground to the bottom of the cloud is the cloud height. Three families with high cloud scores and low junior high school. 2500 meters to subordinate low cloud family; 2500-5000 meters belongs to Zhongyun family; Above 5000 meters, it belongs to the Gaoyun family.

? Third; Cloud shape: According to the height and morphological characteristics of clouds, cloud shapes can be divided into three categories, eleven categories and twenty-eight. These three categories are stratocumulus, cumulus and cirrus. These three types of clouds are subdivided into eleven types and twenty-eight kinds of clouds, such as nimbostratus, Cumulonimbus, Superccumulus, cirrostratus and cirrocumulus.

? Special clouds: There are many kinds, the most common ones are track clouds (airplane tail clouds), solar flares, rainbows, etc.