GLOSS Station Handbook

Station information sheet

GLOSS number236
Station name


Time zone000E, GMT
Latitude (+ve N)60.15
Longitude (+ve E)-1.13333
Observation period(s)1957-
Responsible countryU.K.
Authority responsible
for tide gauge
Tide Gauge Inspectorate, Proudman Oceanographic Laboratory, 6 Brownlow Street, Liverpool, L3 5DA, UK
GLOSS contactUK
Committed to GLOSSYes
Location mapView location map for GLOSS station Lerwick
Digital dataYes
Data acquisition rateRecording at 15 minute intervals, filtered to hourly heights.
Fast delivery data at UHSLCDownload h293.dat from UHSLC   Format documentation for UHSLC data
High frequency data at BODCDownload from BODC   View Lerwick site history   View BODC document #83204  
High frequency data at UHSLCDownload from UHSLC   Download documentation qa293a.dmt from UHSLC   Format documentation for UHSLC data
Data held at national organisationYes
Real-time data availableYes
Tide gauge benchmarksOrdnance 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) dataDownload annual MSL (RLR) data for Lerwick
Annual MSL (RLR) plotView annual MSL (RLR) plot for Lerwick
MSL methodDoodson X0 filter
PSMSL code830
Other relevant codesUHSLC 293
Additional information 
Nearest Met. stationSumburgh
Last updated1997-12-05

Related BODC pages

Sea level portal      World Ocean Circulation Experiment (WOCE) — Sea  level
UK Tide Gauge Network     Climate Variability and Predictability (CLIVAR)
GLOSS project page  


Related external links

Global Sea Level Observing System (GLOSS)     Permanent Service for Mean Sea Level (PSMSL)
University of Hawai`i Sea Level Centre (UHSLC)  World Ocean Circulation Experiment (WOCE)


Permanent Service for Mean Sea Level (PSMSL) Global Sea Level Observing System (GLOSS) Station Handbook Intergovernmental Oceanographic Commission (IOC)