Question

Which two of the following statements regarding wind characteristics are false? 0.3333333333333333 / 1 point Turbulence is rapid changes in wind velocity and direction. This should not be selected Incorrect. This statement is true. Turbulence is defined as rapid changes in wind velocity and direction caused by land-surface obstacles and thermal gradients. Surface roughness increases wind shear. The energy in wind is inversely proportional to air density. Wind speeds blow consistently over long periods of time. Wind shear is the phenomenon that winds speeds increase with height above ground.

Answer 1

The false statements among the given options are:

1. **"Surface roughness increases wind shear."**
- This statement is false. In meteorology, wind shear refers to the change in wind speed and/or direction with height. Surface roughness is more associated with turbulence, not wind shear. Rough surfaces can cause turbulence by disrupting the smooth flow of air, but wind shear is related to changes in wind characteristics with altitude.

2. **"Wind speeds blow consistently over long periods of time."**
- This statement is false. Wind speeds are variable and can change over short and long periods. Wind is influenced by various factors such as atmospheric pressure systems, temperature gradients, and geographical features. Consistent, unchanging wind speeds over long periods are not typical in most locations.