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National Tidal and Sea Level Facility
Tides
Storm surges
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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
Data availability
Tidal predictions – UK and Ireland
UK South Atlantic Network
Gibraltar sea level station
Tidal predictions – South Atlantic
Tide gauge instruments
Definitions of tidal levels
Chart datum and ordnance datum
Permanent Service for Mean Sea Level (PSMSL)
(external link)
Engineers’ page
Proudman Building, Liverpool weather station
About storm surges
Tide-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
Sea level trends
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Tides
UK National Tide Gauge Network
Tide gauge site information
Tide gauge site information
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