All of the following are uses of RADAR, EXCEPT?

RADAR (Radio Detection and Ranging) systems are widely used in navigation for several purposes, but chart corrections are not one of them. The primary functions of RADAR include helping vessels maintain safe distances from other vessels and obstacles to avoid collisions, accurately measuring distances to objects or waypoints, and detecting weather patterns and phenomena.

While radar can assist in identifying positions that may require updates to a chart (for instance, by noting a change in navigational aids), it does not directly edit or alter nautical charts. Charts require manual updates based on navigational observations, reports, or government updates rather than real-time radar data. Consequently, the correct answer highlights that while RADAR is an essential tool for many navigational functions, making chart corrections is outside its typical applications.