Which phenomenon results in the addition of wave energy when waves meet, leading to larger waves?

When waves meet and lead to larger waves due to the addition of wave energy, this phenomenon is known as constructive interference. In this process, when two or more waves overlap, they can combine in such a way that their individual wave heights add together. This results in a new wave that has a greater amplitude than any of the individual waves.

Constructive interference occurs when the peaks (crests) of one wave align with the peaks of another, as well as when the troughs align. This synchronization amplifies the energy, creating larger and more powerful waves. This principle is essential in understanding how wave patterns can change in various oceanic conditions.

Other options, such as rogue waves, are abnormal and extremely large waves that occur unexpectedly but are not specifically the result of wave interference. Destructive interference occurs when waves meet out of phase, leading to a reduction in wave height, which is the opposite of what is described in the question. Surf beat refers to a phenomenon affecting the rhythm of waves on a beach, leading to variations in wave energy, but does not directly involve the constructive addition of wave energy as seen in constructive interference.