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Tides
About tides
Tides: questions and answers
Sea level: questions and answers
The Doodson-Légé Tide Predicting Machine
Tide clocks and watches
Tidal river bores
The River Dee / Afon Dyfrdwy
The River Mersey
UK National Tide Gauge Network
Tide gauge site information
The Newlyn Tidal Observatory
Data availability
Near real-time data display
Highest recorded levels
Tidal predictions
High and low water times and heights
Highest and lowest predicted tides
Other networks
South Atlantic Network
Gibraltar sea level station
Tidal predictions – South Atlantic and Gibraltar
Tide gauge instruments
Tide gauge systems – Full-tide bubbler
Tide gauge systems – Half-tide bubbler
Tide gauge systems – Direct pressure transducer
Tide gauges – Ott pneumatic gauge
Tide gauges – Munro float gauge
Tide gauges – Wellhead float gauge
Tide gauges – Lea float gauge
Instruments – DATARING logger
Instruments – Datum probe
Definitions of tidal levels and other parameters
Chart datum & ordnance datum
Permanent Service for Mean Sea Level (PSMSL website)
Engineers’ page
Proudman Building, Liverpool weather station
Storm surges
About storm surges
Storm surge model
Surge model forecast
Surge model archive
Surge model archive: 2004–2019
Skew surges
Skew surge history: England – South
Skew surge history: England – East
Skew surge history: England – West
Skew surge history: Wales
Skew surge history: Scotland
Skew surge history: Northern Ireland
Skew surge history: Isle of Man
Skew surge history: Channel Islands
Products
Sea level trends
Sea level trend charts
Software
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Sea level trends
Sea level trends for Liverpool (Gladstone Lock)
Sea level trends for Liverpool (Gladstone Lock)
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