Which of the following describes a function of ground surveillance radar?

Ground surveillance radar primarily functions to monitor and detect the movement of individuals and vehicles on the ground. This technology is designed to provide situational awareness in various environments, whether for military applications, law enforcement, or border security. It can track the movement of targets accurately, offering valuable data regarding their speed, direction, and location.

This capability is essential for tasks such as managing the security of perimeters, monitoring traffic, or responding to potential threats. Ground surveillance radar systems use specific frequencies and signal-processing techniques to distinguish between different types of movement, allowing them to effectively identify and track targets on the surface.

The other options describe functions that are not inherent to ground surveillance radar: tracking weather patterns pertains to meteorological radar, safe aircraft routing relates to air traffic control systems, and sensing atmospheric conditions is again under the realm of weather radar. Thus, option C is the one that accurately captures the primary function of ground surveillance radar.