Which tool can assist in determining a vessel's position?

GPS, or Global Positioning System, is a tool specifically designed to determine a vessel's precise location on the Earth's surface. It uses a network of satellites that transmit signals to GPS receivers on boats or other vehicles. By calculating the time it takes for the signals to reach the receiver, the GPS system can triangulate the vessel's position in terms of latitude and longitude.

This technology is essential for navigation, allowing mariners to accurately track their route, identify their current position, and determine distances to destinations. In contrast to other tools:

• A radar system is generally used for detecting other vessels, land obstacles, and weather conditions but does not provide precise location information.

• A sonar device is primarily utilized for underwater scanning to detect objects, measure depth, and map the sea floor, not for determining surface position.

• A wind vane is used to measure wind direction, which can assist with sailing but does not provide location data.

Thus, GPS is the most effective tool for determining a vessel's position while navigating waters.