RQM - CTD Data From the Winter Concerted Mission Aboard the CCGS Amundsen (MOH2020): Odyssée Saint-Laurent 2020

10.26071/ogsl-5edb7307-003a

The 2020 winter collaborative mission, funded by the Réseau Québec maritime (RQM) Odyssée Saint-Laurent program, is the program's third winter oceanographic mission aboard the icebreaker CCGS Amundsen. Resulting from a strategic collaboration between the RQM, the Canadian Coast Guard and Amundsen Science, the mission's objective was to gather scientific knowledge essential to the understanding and management of the St. Lawrence River and Gulf during winter. The mission enabled 25 scientists from universities in Quebec and Ontario to acquire multidisciplinary data to document variability in the physico-chemical properties of the water column; monitor the presence of contaminants, bacteria and viruses; understand the life cycle of zooplankton (e.g., Calanus sp., and Mysis sp.) and the reproductive cycle of halibut in the Gulf; study the functional role of benthic fauna; and understand the role of pack ice in sediment dynamics and coastal erosion.

Vertical profiles of CTD data (conductivity, temperature, depth) were made in the water column at 32 stations distributed along the St. Lawrence system between west of Quebec City and the Lower Estuary, as well as in the Saguenay Fjord and Sept-Îles Bay. These profiles were conducted from around 2 m below the surface to a maximum depth of around 432 m (station G23). They incorporate direct measurements of temperature, salinity, dissolved oxygen, irradiance, light transmission, fluorescence, pH, turbidity and nitrate concentration in seawater. Discrete water samples were taken at various stations and depths to compare CTD's direct measurements with laboratory analyses of dissolved oxygen concentration (20 samples at 6 stations - Winkler chemical titration), and chlorophyll a concentration (27 samples at 7 stations). These comparisons were used to adjust the calibration of CTD dissolved oxygen and fluorescence data.

You can consult an interactive map including all the years of expeditions and the different trajectories (LEG) associated with them.

Access and Use

Licence: Creative Commons Attribution 4.0

Data and Resources

CTD Dataset - MOH2020ERDDAP

CTD data collected during the MOH2020 mission for the 32 stations analized

Mission Report Aboard CCGS Amundsen - MOH2020...PDF

Mission report detailing the context, objectives, crew, equipment and...

Citation

Keywords

Dataset extent

Metadata Reference Date(s) February 21, 2024 (Publication)
May 21, 2024 (Revision)
Data Reference Date(s) February 28, 2020 (Creation)
Frequency of Update As Needed

Access full metadata here

Source last modified May 21, 2024 at 14:47

Other records harvested from amundsen-science_metadata_files_autogenerated

Responsible Party 1
Affiliation
Réseau Québec maritime ROR logo
Email
info-rqm@uqar.ca
Role
Custodian
Responsible Party 2
Name
Montero-Serrano, Jean-Carlos ORCID logo
Affiliation
UQAR-ISMER
Email
jeancarlos_monteroserrano@uqar.ca
Role
Principal Investigator
Responsible Party 3
Name
Guillot, Pascal ORCID logo
Affiliation
Université Laval ROR logo
Email
pascal.guillot@qo.ulaval.ca
Role
Processor
Responsible Party 4
Affiliation
Amundsen Science ROR logo
Role
Custodian
Responsible Party 5
Affiliation
Université du Québec à Rimouski ROR logo
Role
  • Distributor
  • Owner

Field Value
Ocean Variables
  • Oxygen
  • Nutrients
  • Subsurface Salinity
  • Subsurface Temperature
  • Ocean colour
Climate Variables
  • Nutrients
  • Oxygen
Scope Dataset
Status Completed
Maintenance Note Generated from https://cioos-siooc.github.io/metadata-entry-form#/en/stlaurent/7ukNb80dBccbfWOKNRT9ivHJden1/-NqYeJxk9wkPgpQdw0CZ
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North Bounding Latitude 46.83
South Bounding Latitude 50.31
East Bounding Longitude -60.51
West Bounding Longitude -71.19
Temporal Extent
Begin
2020-02-28
End
2020-03-14
Vertical Extent
Min
1.98
Max
432.08
Default Locale English
Citation identifier
Code
https://doi.org/10.26071/ogsl-5edb7307-003a
Projects
  1. RQM
Included in Data Catalogue
Included in Data Catalogue 1
Name
OGSL/SLGO
URL
https://catalogue.ogsl.ca