GLOSS Station Handbook

GLOSS Station Handbook – Lerwick

The GLOSS Station Handbook is currently being re-designed and upgraded.

Until a new version is available, the tide gauge station list below from the last version of the Handbook provides links to further details about each tide gauge in the GLOSS Core Network. Click the GLOSS number buttons to view the information. Click column headings to sort the table.


Station information

Gloss number236
Station nameLerwick
Time zone000E, GMT
Latitude (+ve N)60.15
Longitude (+ve E)-1.13333
Observation periods1957-
Responsible countryU.K.
Authority responsible for tide gaugeNational Oceanography Centre, Joseph Proudman Building, 6 Brownlow Street, Liverpool, L3 5DA, UK
GLOSS contactUK
Committed to GLOSSYes
Location map
Digital dataYes
Data acquisition rateRecording at 15 minute intervals, filtered to hourly heights.
Fast delivery data at UHSLCData 293 File format
High frequency data at BODCData 236 Document 45000 Document 83204
High frequency data at UHSLCData 293a Document 293a File format
Data held at national organisationYes
Real-time data availableYes
Additional parameters (real-time)None
Tide gauge benchmarkOrdnance Survey Benchmark bolt on breakwater wall.
Ordnance Survey Grid Reference: HU 4783 4129
Benchmark relationshipsTide Gauge Zero = Admiralty Chart Datum (ACD)
Tide Gauge Zero = 1.22m below local Ordnance Datum
Tide Gauge Zero = 4.57m below Tide Gauge Benchmark (from 1989 onwards)
Auxiliary benchmarksAUX 1: On SW face (south angle) of Queens Hotel. OS Grid Reference HU 4784 4125
AUX 2: On N face (north west angle) of Lerwick Parish Church. OS Grid Reference HU 4777 4110
Rivet: Set in concrete on north east angle of tide gauge hut.
Data at PSMSL
Annual MSL (RLR) dataRLR 830
Annual MSL (RLR) plot
MSL methodDoodson X0 filter
PSMSL code830
Other relevant codesUHSLC 293
Additional information
Nearest Met. stationSumburgh
Last updated5 December 1997