Tidal level Suffolk Coast at Orford Ness

Tidal levels at this location in the last 5 days

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Key information

• Station name: Orford Ness
• Station ID: 6296
• Estuary/harbour: Suffolk Coast
• Highest level on record: 3.04m on 06 December 2013
• Site datum: -1.00mAOD (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.

How often are tide levels in coastal and estuary areas measured?

We use measuring stations like this one to collect water level data, usually once or twice a day. We collect data more frequently when there's a greater risk of flooding. That's why the graph might show a short time lag since the last measurement.

• View nearby measuring stations

• View the flood information service for England
• View your property's long term risk of flooding

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