Latest tidal level information for Tide at Medmerry

1:14pm Thursday 21 September 2017

This station is temporarily closed and we are working to get the station back online.

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Key information

• Station name: Medmerry
• Station ID: 1025
• Estuary/harbour: Tide
• Highest astronomical tide prediction: 2.80mAOD
• Site datum: 0.00mAOD (what does this mean?)

How are tide levels in coastal and estuary areas measured?

Tide levels in coastal and estuary areas are shown in metres above mean sea level, or ordnance datum (mAOD).

Monitoring stations in these locations do have their own datum - a height in metres fixed relative to mean sea level. But, because of their location, these stations usually have the same datum as actual mean sea level. So it's expressed as zero metres.

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