In the context of naval terms, what does 'surface' typically depict?

In naval terminology, 'surface' refers to the entire shape or profile of an object that is visible and observable above the waterline. This can include ships, boats, or other floating objects that are identifiable in their entirety as they appear on the water's surface. The concept emphasizes the importance of recognizing the full outlines or silhouettes of these objects to aid in navigation, combat readiness, and detection capabilities. Understanding 'surface' in this context is essential for effectively engaging targets in naval operations, as it allows personnel to assess the size, type, and potential threat posed by the vessels in question.