Answer:
Destructive interference
Explanation:
Wave pools are artificially-designed swimming pools which generate waves just like in the ocean. They have been designed in order to imitate the movement of ocean waves. So, in order to do this, waves have to be created either by "pressurized air" or "paddles."
The surrounding waves tend to be bigger than the smaller section of the wave pool because of "destructive interference." This happens when the crest (the point with a maximum value of upward displacement) of one wave meets the trough (the lowest point in the cycle) of another wave. The result is a "lower total amplitude." The amplitude here refers to the difference of individual amplitudes.
So, this explains why the waves are much smaller in one small center section than the surrounding waves.