Station Information

Station ID: 951
Latitude: 46.683333
Longitude: -71.883333
Coastline code: 970
Station code: 87
Country: CANADA
Time span of data: 1960 – 2022
Completeness (%): 86
Date of last update: 16 Feb 2024

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

Portneuf 970/087 RLR(1974) is 12.0m below BM 79L006

Documentation added 2010-08-23

Data for the period 1960-2008 was referred to datum IGLD85 with a RLR factor of
5.273m. For 2009 onwards data was referred to Chart Datum with a RLR factor of

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.

Documentation added 2016-10-20

Primary benchmark for Portneuf has changed from BM 79L006 to BM PONF1.

Data Authority

Canadian Hydrographic Service
615 Booth Street
Ontario K1A 0E6