What search pattern is characterized by an expanding square?

The search pattern that is characterized by an expanding square is specifically designed to efficiently cover a designated area while ensuring that all potential locations of interest are systematically searched. This pattern allows for the search area to be expanded gradually, increasing the probability of locating the target or object of interest.

In this pattern, the search begins in a central point and then expands outward in a square or rectangular shape, ensuring methodical coverage without leaving gaps. The design of this pattern is particularly effective in areas where the location of the target is unknown but is suspected to be within a manageable distance from the starting point.

The other options represent distinct approaches to searching: a drifting search pattern typically follows the movement of drifting objects, a fixed search pattern maintains a constant position but may cover the same area repeatedly, and a random search pattern does not adhere to a systematic approach, which may lead to inefficient coverage of the area.