What’s the main function of a barometer in navigation?

The main function of a barometer in navigation is to measure atmospheric pressure. In navigation, understanding atmospheric pressure is crucial because it can indicate changes in weather conditions. A drop in atmospheric pressure typically signifies that a storm may be approaching, while higher pressure is generally associated with fair weather. This information allows navigators to make informed decisions about their routes and prepare for changing weather patterns, enhancing safety and efficiency on the water.

Using a barometer as a tool in navigation helps mariners anticipate and react to weather changes, significantly impacting their journey. The ability to monitor atmospheric pressure through this instrument is essential for effective maritime navigation.