The horizontal movement of air forms wind
The formation of wind is the result of air flow. The main purpose of wind energy utilization is to convert the kinetic energy of atmospheric movement into other forms of energy.
Wind is horizontally moving air. The movement of air is mainly caused by the different intensity of solar radiation received by various latitudes on the earth. In the equatorial and low latitude areas, the sun's altitude angle is large, the sunshine time is long, and the solar radiation intensity is strong. The ground and the atmosphere receive more heat and the temperature is higher. In high latitude areas, the sun's altitude angle is small, the sunshine time is short, and the ground and atmosphere receive The heat is small and the temperature is low. This temperature difference between high latitudes and low latitudes forms a pressure gradient between north and south, causing the air to move horizontally. Wind should blow along the direction of the horizontal pressure gradient, that is, vertical and isobar lines blow from high pressure to low pressure.
The earth is rotating, and the force that deflects the horizontal movement of the air is called the geostrophic deflection force. This force deflects the airflow in the northern hemisphere to the right and the airflow in the southern hemisphere to the right. Therefore, the movement of the earth's atmosphere is not only affected by the pressure gradient. In addition to force, it is also affected by the direction of the earth's rotation. The real movement of the atmosphere is the result of the combined influence of these two forces.