GLOSS Station Handbook

Station information sheet

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GLOSS number156
Station name


Time zone120W, GMT - 8hrs
Latitude (+ve N)49.15
Longitude (+ve E)-125.91666
Observation period(s)1910-
Responsible countryCanada
Authority responsible
for tide gauge
Mr. G.H. Eaton, Canadian Hydrographic Service, Institute of Ocean Sciences, P.O. Box 6000, Sidney, British Columbia, V8L 4B2,
GLOSS contactCanada
Committed to GLOSSYes
Location mapView location map for GLOSS station Tofino
Digital dataYes
Data acquisition rateBoth the float/stilling well system and the pneumatic bubbler system have digital data loggers (Sutron)
High frequency data at BODCDownload from BODC   View Tofino site history  
High frequency data at UHSLCDownload from UHSLC   Download documentation qa542a.dmt from UHSLC   Format documentation for UHSLC data
Real-time data availableNo
Tide gauge benchmarksControlling benchmark: BM 7,1971
Benchmark relationshipsBM 7,1971 is 5.191m above chart datum BM 7,1971 is 3.096m above geodetic datum
Auxiliary benchmarksBM 3, 1958 elevation 4.036m above chart datum BM 6, 1967 elevation 22.398m above chart datum BM 78C089 elevation 4.671m above chart datum BM 8, 1971 elevation 8.608m above chart datum
Data at PSMSL 
Annual MSL (RLR) dataDownload annual MSL (RLR) data for Tofino
Annual MSL (RLR) plotView annual MSL (RLR) plot for Tofino
MSL methodaverage of hourly heights
PSMSL code165
Other relevant codesUHSLC 542
Additional information 
Other relevant informationWater level information is downloaded daily from one gauge and twice a week for the other. Gauge is tied to controlling benchmarks on an annual basis. Vertical control is also maintained by sight gauge readings. Data available at, and
Last updated2002-12-11
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