Chapter 2: Physical Characteristics

Mean Spring Tidal Range (m)

Marine Scotland Information NMPi icon

Tidal range is generally between 4 and 5 m; highest tidal ranges are found in the inner Solway Firth where the mean spring tidal range can be between 7 and 8 m. Tidal range is at a minimum in areas known as amphidromic points. One of these points occurs in Scottish waters between Islay and the Mull of Kintrye; another amphidromic point can be found in the north east of the North Sea. Tidal range decreases with distance offshore from the North East coast.

Data source for NMPi Mean Spring Tidal Range layer: Atlas of UK Marine Renewable Energy Resources (see



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