Tide Information

General information about tides

• Why are there differences between published tide table information?
• What is a tide gauge?
• What is a storm surge?
• What is a spring tide?
• What are semidiurnal tides?
• What is a seiche?
• What is a neap tide?
• What is national datum?
• What is mean sea level?
• What is lowest astronomical tide?
• What is highest astronomical tide?
• What is a harmonic constituent?
• What is a harmonic constant?
• What is Harmonic Analysis?
• What is Harbour Datum?
• What is Extreme High/Low Water ?
• What is the difference between UTC / GMT?
• What are Diurnal Tides?
• What is chart datum?
• What are the tidal cycles?
• What are tides?
• What are tidal diamonds?
• What are harmonic constituents?
• When can I walk to Hilbre Island
• What causes tides?
• Why are the tides not the same all round the coast of Britain?
• How often do high tides occur?
• What are spring tides and neap tides?
• How far ahead can the tide be predicted?
• Are there always two high tides a day?
• Do the tides follow a repeated pattern?
• Do the planets have any affect on the tides?
• Where can I obtain actual sea level data?
• Where can I find data on long term sea level change in the UK?
• How often do tsunamis affect the UK?
• How much has global sea level risen in the last 100 years, how much will it rise in the next 100 and why is it rising anyway?
• Where are the highest tides in the world?