Whitby tide gauge site

The tide gauge is located in the Harbour Master's Office, Pier Road. The pressure points are positioned underneath the Quay adjacent to the Harbour Office.
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Tide gauge location

The tide gauge consists of a pneumatic bubbler system supplying two-full tide and one mid-tide pressure points. These are mounted on steelwork attached to one of the quay legs. All three pressure lines are monitored by the POL datalogger.

Tide gauge location
Tide gauge location (close-up view) The tide gauge is levelled to the tide gauge bench mark supported by Ordnance Survey auxiliary marks.

External users

Sea level pressures and/or elevations from this site are supplied to the following authorities:

  • Environment Agency, North East Region
  • Whitby Harbour

Site history

1980 – Installed Aanderaa recorder attached to a pneumatic bubbler
1989 – DATARING system installed with full-tide pressure points; the Aanderaa recorder was removed
1995 – New steel work with two full-tide and mid-tide measuring systems installed
2002 – POL data logger installed

Location
Latitude54° 29.4'N
Longitude0° 36.862'W
Grid refNZ 8986 1140
Earliest data1980
Tidal levels 2008 to 2026
HAT6.21 m
LAT0.22 m
MHWS5.59 m
MHWN4.50 m
MLWN2.25 m
MLWS0.99 m
H for 2017 5.97 m
L for 2017 0.48 m
H for 2018 6.05 m
L for 2018 0.35 m
MSR4.6 m
MNR2.25 m

Abbreviations
HAT – highest astronomical tide
LAT – lowest astronomical tide
MHWS – mean high water springs
MHWN – mean high water neaps
MLWN – mean low water neaps
MLWS – mean low water springs
H – highest for year
L – lowest for year
MSR – mean spring range
MNR – mean neap range

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