How to judge the up-and-down direction of the prevailing wind direction

The wind is against the wind. That is, the place where the wind blows first is located in the upwind direction, and the place where it blows later is located in the downwind direction. In order to reduce the pollution of industrial areas to urban residential areas, residential areas are usually located in the upwind direction of the prevailing wind direction, while industrial areas are located in the downwind direction of the prevailing wind direction, which can ensure that the exhaust gas from industrial areas will not blow against the wind to urban residential areas. Therefore, buildings are determined according to the prevailing local wind direction.

The wind is against the wind. That is, the place where the wind blows first is located in the upwind direction, and the place where it blows later is located in the downwind direction. In order to reduce the pollution of industrial areas to urban residential areas, residential areas are usually located in the upwind direction of the prevailing wind direction, while industrial areas are located in the downwind direction of the prevailing wind direction, which can ensure that the exhaust gas from industrial areas will not blow against the wind to urban residential areas. Therefore, buildings are determined according to the prevailing local wind direction.