Tidal range: understanding and mastering this concept for offshore permits
Tidal range is an essential concept for any candidate preparing for an offshore license. It refers to the difference in height between high water (high tide) and low water (low tide). Mastering this concept is crucial to safe navigation, particularly in areas where tides have a strong influence on sailing conditions
Did you know that the tidal range in the Bay of Mont Saint Michel can reach 14 metres with a tidal coefficient of 120?
During preparation for your offshore sailing license, tidal range is covered as part of tidal calculations. As a future sailor, understanding this concept will enable you to assess the available water heights at a given moment, thus ensuring that your boat will be able to pass through sensitive areas such as harbor entrances and/or air draught when passing under a bridge.
Calculating tidal range: the basics you need to know
To determine the tidal range, simply subtract the height of water at low tide from that at high tide. Let's take a practical example:
- Height at full sea: 6 metres
- Height at low water: 2 metres
- Tidal range: 6 - 2 = 4 metres
These calculations are at the heart of the exercises proposed in the offshore license training course. Whether you are an independent or accompanied candidate, you need to be able to perform them quickly and accurately.
Tips for understanding tidal range
- Decipher tide books: These documents provide the information you need to determine tide times and heights.
- Use paper and pencil to record water levels.
- Practice regularly: The more you practice, the more obvious these calculations will become.
In conclusion
Tidal range is an essential concept for any sailor. Thanks to solid preparation and the right tools, you'll be able to tackle it with confidence and pass your offshore sailing license exam with flying colors.
Don't let the tides catch you off guard!
