GLOSS Station Handbook

GLOSS Station Handbook – Tofino

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 number156
Station nameTofino
Time zone120W, GMT - 8hrs
Latitude (+ve N)49.15
Longitude (+ve E)-125.91666
Observation periods1910-
Responsible countryCanada
Authority responsible for tide gaugeMr. 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 map
Digital dataYes
Data acquisition rateBoth the float/stilling well system and the pneumatic bubbler system have digital data loggers (Sutron)
High frequency data at BODCData 156 Document 75064
High frequency data at UHSLCData 542a Document 542a File format
Real-time data availableNo
Additional parameters (real-time)None
Tide gauge benchmarkControlling 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) dataRLR 165
Annual MSL (RLR) plot
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 updated11 December 2002