Real-time CTD data from the Atlantic Zone Monitoring Program (AZMP) VIKING buoy anchorages


CTD 'near real' time in-situ and 1 meter binned data. No quality control has been performed on this data. Data are available in two versions :

  • in situ : data at levels as recorded by the CTD ;
  • binned : data average in 1 metre bins .

Data are from the following 7 Viking buoys: PMZA-RIKI, PMZA-VAS, AZMP-ESG, AZMP-STA27, IML-7, IML-BA and NORTH-AJAX

Fisheries and Oceans Canada monitors the marine environment using automated oceanographic buoys as one of its tools, designed and developed by a scientific team from the Maurice Lamontagne Institute, in partnership with Multi-Électronique. In addition to measuring a multitude of meteorological and oceanographic parameters at the water surface, these buoys independently collect temperature and salinity profiles to a depth of 200 m without human intervention, and transmit the data in real time.

The buoys are part of the Department’s Atlantic Zone Monitoring Program’s sampling strategy, which, since 1998, has been assessing the oceanographic conditions in the Gulf of St. Lawrence, the Scotian Shelf, and the Newfoundland and Labrador Shelf. The program aims to better understand, describe and predict the state of the marine ecosystem, as well as to quantify the changes observed in the physical, chemical and biological properties of the ocean, whether they be seasonal, yearly, or over longer periods. In fact, the buoys are floating laboratories that operate 24 hours a day. They are invaluable to the scientific community for studying climate change and monitoring the state of the ocean.

The automatically acquired profiles are used to quantify the rapid temperature and salinity changes that can occur (due to tides, for example) and to put into context the biological samples obtained by scientists on board vessels at much lower frequency. Mariners also appreciate having offshore wind and wave conditions available in real time from online services.

Access and Use

Licence: government-open-license-canada

Data and Resources



Dataset extent

Map data © OpenStreetMap contributors

Metadata Reference Date(s) May 30, 2022 (Publication)
May 29, 2023 (Revision)
Data Reference Date(s) April 04, 2020 (Creation)
April 05, 2022 (Publication)
Frequency of Update As Needed

Responsible Party 1
Pêches et océan Canada - Ficheries and Oceans Canada
  • Distributor
  • Owner
  • Point of Contact
  • Principal Investigator
Responsible Party 2
Observatoire global du Saint-Laurent

Field Value
Ocean Variables
  • Oxygen
  • Sub Surface Currents
  • Sub Surface Salinity
  • Sub Surface Temperature
  • Other
Scope Dataset
Status On Going
Maintenance Note Generated from
Spatial Extent { "coordinates": [ [ [ -130.3, 41.5 ], [ -48.96, 41.5 ], [ -48.96, 51.82 ], [ -130.3, 51.82 ], [ -130.3, 41.5 ] ] ], "type": "Polygon" }
North Bounding Latitude 51.82
South Bounding Latitude 41.5
East Bounding Longitude -48.96
West Bounding Longitude -130.3
Temporal Extent
Vertical Extent
Default Locale French
Citation identifier