What are meteorological elements?

Various basic physical quantities that characterize the state of the atmosphere and various weather phenomena. It mainly includes basic physical quantities such as atmospheric temperature, pressure, humidity, wind, sunshine, and radiation, as well as weather phenomena such as clouds, rain, visibility, precipitation, and thunderstorms. In a broad sense, it also includes derived quantities such as atmospheric stability and vorticity.

Our country uses the Celsius temperature scale (℃) to express the atmospheric temperature. In meteorology, the ground temperature is referred to as air temperature, which uniformly refers to the atmospheric temperature in the louver box at a height of 1.5m. In addition, it is necessary to observe the representative values ​​of the surface, underground and atmosphere. Temperature at the level. Barometric pressure observations are usually made using a mercury barometer. Wind observations usually include instantaneous wind and average wind in a certain period of time (such as one minute, ten minutes, etc.). Humidity indicates how much water vapor is in the atmosphere. Except for the observation of clouds, especially cloud shapes, which are mainly visually observed by observers, other meteorological elements can be measured by instruments. Among these main meteorological elements, some represent the properties of the atmosphere, such as air pressure, temperature and humidity; some represent the movement of the air, such as wind direction and wind speed; some are phenomena that occur in the atmosphere, such as clouds and fog. , rain, snow, thunder and lightning, etc. Their respective definitions are: Temperature: a physical quantity that expresses the degree of hotness and coldness of the atmosphere; of course, there are far more meteorological elements than these, and the above are only the most important meteorological elements. Generally speaking, the more meteorological elements are selected, the more objectively various conditions of the atmosphere can be expressed. Meteorological elements include temperature, air pressure, wind, clouds, precipitation, visibility and air humidity. Among these main meteorological elements, some represent the properties of the atmosphere, such as air pressure, temperature and humidity; some represent the movement of the air, such as wind direction and wind speed; some are phenomena that occur in the atmosphere, such as clouds and fog. , rain, snow, thunder and lightning, etc.