Station Information

Station ID: 126
Latitude: 46.333333
Longitude: -72.55
Coastline code: 970
Station code: 78
Country: CANADA
Time span of data: 1899 – 2019
Completeness (%): 86
Date of last update: 01 Oct 2020

Green Arrow: Current Station
Yellow Marker: Neighbouring RLR Station
Red Marker: Neighbouring Metric Station

Please note: In many cases, the station position in our database is accurate to only one minute. Thus, the tide gauge may not appear to be on the coast.

Station Documentation

Link to RLR information.

Documentation added 1994-03-23

data up to 1992 revised, March 1994

Documentation added 1994-07-15

Trois-Rivieres 970/078 RLR(1983) is 7.5m below BM 3RIV3 1958

Documentation added 2006-05-08

Data for Trois-Rivieres for 1994 replaced by revised values. New values appear approx. 40mm higher. 8.5.06

Documentation added 2010-08-24

Data for 1899-2008 referred to datum IGLD85 4.732m below TGBM BM 3RIV3 1958
with an RLR factor of 2.768m. Data 2009 onwards referred to Chart Datum 1.806m below TGBM BM 3RIV3 1958 with an RLR factor of 5.694m.

Documentation added 2015-07-27

This year, rather than just sending the latest year of data, the complete dataset has been supplied. This has highlighted some differences in the data. From communications in the correspondence file for 2002 it appears that the Oceans and Fisheries meant to supply revised data for the stations supplied. This did not happen. The complete dataset includes these data revisions. Therefore, the whole dataset has now been re-entered.

Data Authority

Canadian Hydrographic Service
615 Booth Street
Ontario K1A 0E6