What is the symbol of the wind?

The symbol of the wind is represented by the wind vector, which is composed of wind stems and feathers, like an F. In the forecast of the Central Meteorological Observatory, there is a symbol that looks like an F on the big screen, in which the "tail" indicates the wind direction. The wind direction is measured by azimuth. One of the instruments for measuring the wind direction is the wind vane, which is generally10-12m above the ground. If there are obstacles nearby, the installation height should be at least 6 meters higher than the obstacles. In which direction the wind arrow points, it means what direction the wind direction is at that time.

Formation of wind

Wind is produced by airflow, which is caused by the uneven heating of the earth's atmosphere, resulting in the difference of air pressure in different latitudes and regions. Atmospheric pressure is not constant. When the air is heated, it will expand and rise, and the air pressure in the area where the hot air is located will decrease. Adjacent cold air will make up for the space left by hot air, thus forming wind.

The largest range of winds on the earth is atmospheric circulation. Due to the Coriolis effect, wind belts in different directions are produced at different latitudes of the earth. Atmospheric circulation is not the only factor that causes wind on the earth. Due to the difference of topography and uneven heating in different regions, topographic winds are produced all over the earth.