Permanent Service for Mean Sea Level

The UK National Tide Gauge Network records tidal elevations at 44 locations around the UK of which 11 are currently operating in Scotland. 

The UK National Tide Gauge Network is owned by the Environment Agency, but is operated on their behalf by the Tide Gauge Inspectorate, which is based at the National Oceanography Centre (NOC) in Liverpool. The tide gauge locations can be gleaned from The National Tidal and Sea Level Facility (see http://www.ntslf.org/data/uk-network-real-time) where each gauge has a dedicated webpage containing location photos; a link to gauge location plotted on Google maps; latitude/longitude and OS grid ref. The UK National Tide Gauge Network also appears on the Permanent Service for Mean Sea Level website (see http://www.psmsl.org/data/obtaining/map.html) which is also based at the National Oceanography Centre (NOC).