How does a terrain model aid in land navigation?

A terrain model is a three-dimensional representation of a specific area that highlights the physical features of the terrain, such as elevation, depressions, bodies of water, and vegetation. By illustrating these features, it enables navigators to understand how the landscape will affect their movement and decision-making during an operation.

Understanding the terrain is crucial for effective land navigation because it helps in identifying potential obstacles, advantageous positions, and areas that might not be easily traversable. The model provides a clearer visual context compared to a two-dimensional map, allowing personnel to plan routes, anticipate challenges, and make informed tactical decisions based on the physical environment.

In contrast, other options like supply overviews, weather forecasts, or maps of previous routes do not directly illustrate the terrain and, therefore, do not serve the same purpose in aiding land navigation as a terrain model does.