Traditional Culture Encyclopedia - Weather forecast - What is the Five Elements Weather Station?

What is the Five Elements Weather Station?

Five-element weather station refers to weather station equipment including five meteorological monitoring elements, such as wind speed, wind direction, temperature, humidity and precipitation.

Air pressure: the pressure of the atmosphere is the pressure generated by the movement of air molecules on any surface unit area. ?

Temperature: a quantity indicating the degree of heat and cold in the atmosphere. It is the average kinetic energy of air molecular motion. The general unit is Celsius℃, or thermodynamic temperature k?

Atmospheric humidity (humidity for short): indicates the water vapor content or humidity degree in the air, which can be expressed by physical quantities such as specific humidity (G), absolute humidity (pv), water pressure (E), dew point and relative humidity. ?

Wind: the movement of air relative to the ground. Meteorology often refers to the horizontal movement of air, expressed by wind direction and wind speed. Wind is a vector with magnitude and direction. Wind direction refers to the direction of the wind. Wind speed refers to the distance that air moves in the horizontal direction in unit time, and the unit is meter/second or kilometer/hour. (0- 12)

Extended data:

The objects of meteorological research are the laws of atmospheric motion in all layers of the atmosphere, the weather phenomena in the troposphere and the distribution of drought, flood and cold and warm on the ground. Such as clouds, fog, rain, snow, hail, lightning, typhoon, cold wave and so on. Are common weather phenomena. Its research scope is the atmosphere on the surface of the earth, which is about 3000 kilometers thick.

According to the thermodynamic structure, it can be divided into troposphere, stratosphere, mesosphere, warm layer and escape layer from bottom to top; According to electromagnetic characteristics, it can be divided into neutral layer, ionosphere and magnetosphere; It can be divided into homogeneous layer, turbulent layer and heterogeneous layer according to chemical composition.

Sunlight, which contains seven colors of light, is water droplets (raindrops or fog droplets) injected into the atmosphere. Various colors of light can be refracted and reflected to form a colorful light arc ring on the rain curtain or fog curtain. When the angle radius of the light arc ring to the observer is about 42 degrees and the halo color sequence is internal ultraviolet red, it is called rainbow.

On the outside of the rainbow, sometimes a weak color halo appears, and the angular radius of the halo to the observer is about 52 degrees. The order of color rings is opposite to that of rainbow, that is, internal infrared purple, which is called neon or auxiliary rainbow.

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