What is the knowledge about the weather?

The knowledge about the weather is as follows:

1. The conditions for fog formation are cooling, humidification and concretion. Increase the water vapor content. This is caused by radiation cooling, which often occurs in sunny days, breezes, nights and early mornings with abundant and stable water vapor near the ground, or inversion. Meteorology calls it radiation fog.

The other is the fog formed by the horizontal movement of warm and humid air and the gradual cooling after passing through the cold ground or water surface, which is called advection fog in meteorology; Sometimes the fog formed by two reasons is called mixed fog.

2. Cloud formation is mainly caused by water vapor condensation. The closer to the ground, the higher the temperature and the denser the air. The higher the altitude, the lower the temperature and the thinner the air.

3. Direct cause of wind: uneven distribution of air pressure in horizontal direction. Wind is comprehensively influenced by different factors such as atmospheric circulation, topography and water area, and its manifestations are various, such as monsoon, local sea-land wind, valley wind and foehn wind.

4. The combination of many weather systems constitutes a large-scale weather situation and hemispheric and even global atmospheric circulation. The weather system is always in the process of rebirth, development and extinction, and there are corresponding weather phenomena in different development stages.

5. Weather process is the process of weather phenomena changing with time in a certain area. All kinds of weather systems have certain time and space scales, and they are intertwined and influence each other.