Tidevannssletter

Tidevannssletter, also known as a tide table or tide chart, is a document that provides information about the predicted times and heights of tides at a specific location. These letters are typically issued by national or regional meteorological and oceanographic agencies and are essential for maritime navigation, coastal planning, and various recreational activities.

The tidevannssletter includes several key pieces of information:

1. Tide times: The exact times when the tide will reach its highest (high tide) and lowest (low tide) points.

2. Tide heights: The predicted heights of the tide at high and low points, usually measured in meters or feet above a specific reference level, such as mean sea level.

3. Tidal range: The difference in height between high tide and low tide.

4. Tidal stream: Information about the direction and speed of the tidal current, which can be crucial for safe navigation.

Tidevannssletter are updated regularly to account for changes in the tidal patterns due to factors such as the moon's phases, weather conditions, and seasonal variations. They are available in various formats, including printed copies, online databases, and mobile applications, making them easily accessible to the public.

In addition to their practical applications, tidevannssletter also play a significant role in environmental monitoring and research. By tracking long-term tidal data, scientists can study trends in sea-level rise, coastal erosion, and other climate-related phenomena.