The Tide Gauge building is located on Commercial Pier adjacent to the ferry terminal. The pressure points are located on the pier
wall directly in front of the Tide Gauge building.
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Tide gauge location
The GRP building houses the Tide Gauge equipment which consists of a POL data logger monitoring both pneumatic bubbler systems, and
an Ott pneumatic chart recorder. The pressure points are mounted on steelwork which is attached to the pier wall.
The tide gauge is levelled to the tide gauge bench mark supported by Ordnance Survey auxiliary marks.
Sea level pressures and/or elevations from this site are supplied to the following authority:
1990 – Two full tide pressure points installed and connected to an Ott chart recorder
1991 – DATARING data logger installed
2001 – POL data logger installed