When is a circular search pattern most effective?

A circular search pattern is most effective when the exact point of loss is less well known because this method allows divers to systematically cover a broader area around a central point. When the specific location of the lost object or person is uncertain, starting from a central point and moving outward in a circular manner increases the likelihood of encountering the target. This approach ensures that divers can efficiently cover the area by gradually expanding their search radius.

If the point of loss were well known, a more direct search pattern could be utilized, such as a linear or back-and-forth pattern, which would be more effective in quickly locating the target. Similarly, factors such as depth and currents can influence search patterns, but the key advantage of a circular search pattern is its ability to accommodate uncertainty about the location of what is being searched for.