Surface temperature and salinity - Shipboard Thermosalinographs

1999 to 2023 surface temperature and salinity measured along the track of commercial ships, mostly between Montreal (Quebec) and St. John's (Newfoundland).

Monitoring of surface water conditions in the Estuary and Gulf of St. Lawrence is carried out with different complementary methods such as thermosalinographs (TSG) installed on commercial ships. These ships are sailing all year long from Montreal to St. John’s, one round trip per week, and are sampling water near the surface (3 to 8 meters deep) to determine the temperature and salinity all along the route.

Purpose

The recorded data are used as input to numerical forecasting models for sea ice conditions and as a monitoring tool for the Gulf of St. Lawrence.

Annual reports are available at the Canadian Science Advisory Secretariat (CSAS), (http://www.dfo-mpo.gc.ca/csas-sccs/index-eng.htm). Galbraith, P.S., Chassé, J., Caverhill, C., Nicot, P., Gilbert, D., Lefaivre, D. and Lafleur, C. 2018. Physical Oceanographic Conditions in the Gulf of St. Lawrence during 2017. DFO Can. Sci. Advis. Sec. Res. Doc. 2018/050. v + 79 p.

Data and Resources

Additional Info

Field Value
Last Updated April 17, 2026, 19:51 (UTC)
Created April 17, 2026, 19:51 (UTC)
contact_email gddaiss-dmsaisb@dfo-mpo.gc.ca
contact_person {"en": "Government of Canada; Fisheries and Oceans Canada; Sciences/Scientific Advice, Information and Support Branch", "fr": "Gouvernement du Canada; Pêches et Océans Canada; Sciences/Direction des avis, information et soutien scientifique"}
criticality_level []
data_dictionary EPSG: 32198,EPSG,7.4.1
geographic_scope []
open_canada_collection fgp
open_canada_date_modified 2023-01-01 00:00:00
open_canada_date_published 2019-01-01 00:00:00
open_canada_keywords {"en": ["Ocean Temperature", "Water Temperature", "Sea Surface Temperature", "Salinity", "St. Lawrence Estuary", "Gulf of St. Lawrence", "St. Lawrence River", "Cabot Strait", "Strait of Belle Isle", "Atlantic Ocean", "Earth sciences", "Oceanography", "Physics", "Temperature", "Oceans", "Salt water", "Surface water"], "fr": ["température océanique", "température de l'eau", "température de la surface de la mer", "salinité", "Estuaire du Saint-Laurent", "Golfe du Saint-Laurent", "Fleuve Saint-Laurent", "Détroit de Cabot", "Détroit de Belle Isle", "Océan Atlantique", "Sciences de la terre", "Océanographie", "Physique", "Température", "Océan", "Eau salée", "Eau de surface"]}
open_canada_subject ["nature_and_environment"]
sensitivity_level unrestricted
title_fr Température et salinité de surface - Thermosalinographes en route
update_frequency P1Y