Station Information

Station ID: 393
Latitude: 47.566667
Longitude: -52.716667
Coastline code: 970
Station code: 121
Country: CANADA
Time span of data: 1935 – 2016
Completeness (%): 74
Link to ellipsoid: Available
Date of last update: 29 Jun 2017

Green Arrow: Current Station
Yellow Marker: Neighbouring RLR 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.

Additional Data Sources (guide to additional data sources)

Nearby GNSS Stations from SONEL: STJ3, STJO
Nearby Real Time Stations from VLIZ: stjo
Fast Delivery Data from UHSLC station 276: hourly and daily
Research Quality Data from UHSLC station 276: hourly and daily

Station Documentation

Link to RLR information.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 23-Mar-1994
data up to 1992 revised, March 1994
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 15-Jul-1994
St John's 970/121 RLR(1992) is 10.0m below BM 90F9000
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 24-Sep-1997
Station moved to a new site within St. John's harbour during 1990
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 05-Dec-2006
Revised historical data 1935-7, 1942 supplied 17th April 2001. This was confirmed to be the same datum as 1957-
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 06-Mar-2008
Data 2004 flagged suspect. However, when buddy checked with 2 local stations the dip is apparent in these also. The flagging has been removed.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 18-Aug-2011
Using data from the Canadian Hydrographic service the RLR diagram has been re-drawn. Primary benchmark remains 90F9000 at 3.808m above Chart Datum. Benchmark 76-F-727 is also still in use.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 27-Jul-2015
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.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 30-Jul-2015
Historic data was included in the above complete dataset. The datum for the period 1935-1942 is currently being queried. Until the Fisheries and Oceans Canada confirm the datum this data has been made Metric.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 28-Jun-2016
It has been confirmed by the Canadian Authority that the datum for the historic data for 1935-1942 is CD as the rest of the data. The historic data has been added to the RLR data. However, the 1935-1937 data was 'corrected to zero of the diagram' and 1.29ft subtracted from the data to convert it to CD
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 29-Jun-2017
Data for 2012-2015 updated for Canadian Atlantic network. The supplier provided a finalised version following a review by the regional office.

Data Authority

Canadian Hydrographic Service
615 Booth Street
Ontario K1A 0E6