The anemometer located at the highest point above the ground will measure the highest wind speed.

Wind speed gradient

The variation of horizontal wind speed with height or altitude is known as wind speed or shear wind. This variation in wind speed is due to aerodynamic drag. The wind speed increases as the height above the ground increases. This is caused by surface friction.
Wind that flows near the earth’s surface encounters obstacles like trees, buildings and hills that will alter its direction. Wind can change both horizontally and vertically resulting in wind turbulence near the surface of the ground.

Wind turbulence causes dust to be picked up and displaced, as well as helps in the seed dispersion of some plants. However, energy is also lost in this process, causing the wind to lose speed. Therefore, the terrain, depending on its roughness or smoothness, will have an effect on the wind speed gradient. A smooth surface like water will have a lower wind speed gradient as compared to rough ground surfaces.
 

The hypothesis that the anemometer located at the highest point above the ground will measure the highest wind speed has been proven to be true.

Wind speed gradient and turbulence are very important factors to consider when selecting the height for installing wind turbines. The wind turbine must have a high wind speed and as little wind turbulence as possible. Light wind turbulence can affect the performance and efficiency of the wind turbine while large amounts of turbulence can reduce its operating life, or even damage it.
 

The experiment may be repeated by using wind socks positioned at various heights, with the angle of the socks as an indicator of wind speed.

The experiment may also be repeated to compare the results obtained at different locations, such as the seaside or in an open field.