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Le pr\\u00e9sent jeu de donn\\u00e9es CTD provient de la premi\\u00e8re mission de la phase TReX-deep qui vise l\\u2019\\u00e9tude des processus de transport et dispersion dans les eaux de fond du chenal Laurentien, de l'estuaire maritime au d\\u00e9troit de Cabot. Cette exp\\u00e9rience unique, qui combine les expertises de chercheurs du Qu\\u00e9bec, de la Nouvelle-\\u00c9cosse et de l'Allemagne, est utilis\\u00e9e non seulement pour pr\\u00e9voir la dispersion et l'advection de certains contaminants, mais aussi pour comprendre les processus biog\\u00e9ochimiques li\\u00e9s au climat qui contr\\u00f4lent les conditions d\\u2019hypoxie et d\\u2019acidification \\u00e0 la t\\u00eate du chenal Laurentien. \\n\\n\\nCe jeu de donn\\u00e9es CTD issu de la premi\\u00e8re mission en octobre 2021 pr\\u00e9sente des profils verticaux de salinit\\u00e9, temp\\u00e9rature, oxyg\\u00e8ne dissous, densit\\u00e9, et fluorescence de 4 \\u00e0 360 m pour une trentaine de stations entre Rimouski et le d\\u00e9troit de Cabot. Bien que les sondes soient calibr\\u00e9es par le fabricant au cours de l'ann\\u00e9e, des \\u00e9chantillons discrets de salinit\\u00e9 ont \\u00e9t\\u00e9 pr\\u00e9lev\\u00e9s dans toute la colonne d'eau et analys\\u00e9s sur un salinom\\u00e8tre Guildline Autosal 8400 calibr\\u00e9 avec l'eau de mer standard de l'IAPSO (International Association for the Physical Sciences of the Oceans) et les profils CTD retrait\\u00e9s apr\\u00e8s la mission. De m\\u00eame, les concentrations d'oxyg\\u00e8ne dissous ont \\u00e9t\\u00e9 d\\u00e9termin\\u00e9es par titrage chimique Winkler (Grasshoff et al., 1999) sur une quarantaine d'\\u00e9chantillons d'eau discrets collect\\u00e9s directement dans les bouteilles Niskin. L'\\u00e9cart-type relatif, bas\\u00e9 sur des analyses r\\u00e9p\\u00e9t\\u00e9es d'\\u00e9chantillons pr\\u00e9lev\\u00e9s dans la m\\u00eame bouteille Niskin, \\u00e9tait inf\\u00e9rieur \\u00e0 1 %. Ces mesures ont \\u00e9galement servi \\u00e0 \\u00e9talonner la sonde \\u00e0 oxyg\\u00e8ne SBE-43 mont\\u00e9e sur la rosette.\\n\\nIl a \\u00e9t\\u00e9 acquis conjointement par les \\u00e9quipes de Douglas Wallace (U. 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Promoting data discovery and re-use, SLGO counts 48 members and is recognized throughout the world.\r\n\r\nThe content distributed by SLGO spans across all disciplines, themes and areas of interest that data-producing members choose to make accessible. A large amount of scientific and environmental information is already available through SLGO's portal. Furthermore, in order to maximize data availability, SLGO's team develops user-friendly web applications to facilitate data visualization and download in various formats.\r\n\r\nSLGO is, as such, responsible for the activities of the region of the St. Lawrence of CIOOS. To contribute, we invite you to contact us.","fr":"Créé en 2005 par un regroupement d’organisations provenant du gouvernement fédéral et provincial, du milieu académique et communautaire, l’Observatoire global du Saint-Laurent permet de maximiser les retombées de la collecte de données par l’intégration de données multidisciplinaires provenant de multiples partenaires sur un portail web unique. Favorisant la découverte des données et leur valorisation, l’OGSL compte actuellement 48 membres et est reconnu à travers le monde.\r\n\r\nLe contenu diffusé par l'OGSL couvre l'ensemble des disciplines, thèmes et domaines d'intérêt que les membres producteurs de données choisissent de rendre accessibles. Une grande quantité d'information de nature scientifique et environnementale est déjà disponible sur le portail de l'OGSL. De plus, l'équipe de l'OGSL développe des applications web conviviales pour faciliter la visualisation et le téléchargement des données sous différents formats afin de maximiser la démocratisation des données.\r\n\r\nL'OGSL est donc responsable des activités de la région du Saint-Laurent du SIOOC. Pour contribuer, nous vous invitons à nous contacter."}},"license_title":"Creative Commons Attribution 4.0","num_resources":1,"resource-type":"dataset","bbox-east-long":"-59.18","bbox-north-lat":"50.7","bbox-south-lat":"46.32","bbox-west-long":"-68.81","creator_user_id":"fe6035ee-ed91-4ead-b5b2-4048232a22bb","temporal-extent":[{"end":"2021-10-30","begin":"2021-10-23"}],"vertical-extent":[{"max":"360.0","min":"4.0"}],"maintainer_email":null,"maintenance-note":"Generated from https://cioos-siooc.github.io/metadata-entry-form#/en/stlaurent/DYzf5PwZt9VlWTEckIRdRx3NvmI2/-NTUINbTnOx6k86IMhJL","metadata_created":"2026-07-31T16:38:04.256061","notes_translated":{"en":"The TReX (Tracer ReleaseEXperiment) project is an interdisciplinary research project that aims to develop and demonstrate Canada's ability to predict the spread of contaminants and respond to their accidental discharges in coastal marine environments. The present CTD dataset comes from the first mission of the Trex-Deep phase, which aims to study transport and dispersal processes in the bottom waters of the Laurentian Channel, from the maritime estuary to Cabot Strait. This unique experiment, which combines the expertise of researchers from Quebec, Nova Scotia, and Germany, is used to predict the dispersal and advection of certain contaminants and understand the climate-related biogeochemical processes that control hypoxia and acidification conditions at the head of the Laurentian Channel. \n\nThis CTD dataset from the first mission in October 2021 presents vertical profiles of salinity, temperature, dissolved oxygen, density, and fluorescence from 4 to 360 m for about thirty stations between Rimouski and Cabot Strait. Although the probes were calibrated by the manufacturer during the year, discrete salinity samples were taken throughout the water column and analyzed on a Guildline Autosal 8400 salinometer calibrated with standard IAPSO (International Association for the Physical Sciences of the Oceans) seawater and CTD profiles reprocessed after the mission. Similarly, dissolved oxygen concentrations were determined by Winkler chemical titration (Grasshoff et al., 1999) on about forty discrete water samples collected directly from Niskin bottles. The relative standard deviation, based on repeated analyses of samples taken from the same Niskin bottle, was less than 1%. These measurements were also used to calibrate the SBE-43 oxygen probe mounted on the rosette.\n\nIt was acquired jointly by the teams of Douglas Wallace (U. 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Cette expérience unique, qui combine les expertises de chercheurs du Québec, de la Nouvelle-Écosse et de l'Allemagne, est utilisée non seulement pour prévoir la dispersion et l'advection de certains contaminants, mais aussi pour comprendre les processus biogéochimiques liés au climat qui contrôlent les conditions d’hypoxie et d’acidification à la tête du chenal Laurentien. \n\n\nCe jeu de données CTD issu de la première mission en octobre 2021 présente des profils verticaux de salinité, température, oxygène dissous, densité, et fluorescence de 4 à 360 m pour une trentaine de stations entre Rimouski et le détroit de Cabot. Bien que les sondes soient calibrées par le fabricant au cours de l'année, des échantillons discrets de salinité ont été prélevés dans toute la colonne d'eau et analysés sur un salinomètre Guildline Autosal 8400 calibré avec l'eau de mer standard de l'IAPSO (International Association for the Physical Sciences of the Oceans) et les profils CTD retraités après la mission. De même, les concentrations d'oxygène dissous ont été déterminées par titrage chimique Winkler (Grasshoff et al., 1999) sur une quarantaine d'échantillons d'eau discrets collectés directement dans les bouteilles Niskin. L'écart-type relatif, basé sur des analyses répétées d'échantillons prélevés dans la même bouteille Niskin, était inférieur à 1 %. Ces mesures ont également servi à étalonner la sonde à oxygène SBE-43 montée sur la rosette.\n\nIl a été acquis conjointement par les équipes de Douglas Wallace (U. Dalhousie), Gwénaëlle Chaillou (ISMER-UQAR) et Toste Tanhua (GEOMAR)."},"title_translated":{"en":"CTD Data from the Maritime Estuary and Gulf of St. Lawrence from the TReX Mission (Tracer Release EXperiment) - Deep 01","fr":"Données CTD de l'estuaire maritime et golfe du St-Laurent de la mission TReX (Tracer Release EXperiment ) - deep 01"},"xml_location_url":"https://catalogue-waf.ogsl.ca/metadata-files/ismer/bca1b181-4f0e-4373-bf83-13460b6aef59.xml","metadata-language":"en","metadata_modified":"2026-07-31T16:38:04.256065","frequency-of-update":"asNeeded","dataset-reference-date":[{"type":"creation","value":"2021-10-23"},{"type":"revision","value":"2022-12-15"}],"cited-responsible-party":[{"role":["custodian","distributor","owner","pointOfContact","principalInvestigator","coAuthor"],"individual-name":"Chaillou, Gwénaëlle","organisation-name":"UQAR-ISMER","contact-info_email":"gwenaelle_chaillou@uqar.ca","individual-uri_code":"https://orcid.org/0000-0002-4170-8852","individual-uri_version":"","individual-uri_authority":"","individual-uri_code-space":"","contact-info_online-resource":""},{"role":["principalInvestigator","coAuthor"],"individual-name":"Tanhua, Toste","organisation-name":"GEOMAR Helmholtz Centre for Ocean Research Kiel","contact-info_email":"ttanhua@geomar.de","individual-uri_code":"https://orcid.org/0000-0002-0313-2557","organisation-uri_code":"https://ror.org/02h2x0161","individual-uri_version":"","individual-uri_authority":"","organisation-uri_version":"","individual-uri_code-space":"","organisation-uri_authority":"","organisation-uri_code-space":"","contact-info_online-resource":""},{"role":"coAuthor","individual-name":"Hérard, Olivier","organisation-name":"Université du Québec à Rimouski","contact-info_email":"olivier.herard@uqar.ca","organisation-uri_code":"https://ror.org/049jtt335","organisation-uri_version":"","organisation-uri_authority":"","organisation-uri_code-space":"","contact-info_online-resource":""},{"role":"coAuthor","individual-name":"Nesbitt, William","organisation-name":"Dalhousie University","contact-info_email":"William.Nesbitt@dal.ca","organisation-uri_code":"https://ror.org/01e6qks80","organisation-uri_version":"","organisation-uri_authority":"","organisation-uri_code-space":"","contact-info_online-resource":""},{"role":["principalInvestigator","coAuthor"],"individual-name":"Wallace, Douglas","organisation-name":"Dalhousie University","contact-info_email":"Douglas.Wallace@Dal.Ca","individual-uri_code":"https://orcid.org/0000-0001-7832-3887","organisation-uri_code":"https://ror.org/01e6qks80","individual-uri_version":"","individual-uri_authority":"","organisation-uri_version":"","individual-uri_code-space":"","organisation-uri_authority":"","organisation-uri_code-space":"","contact-info_online-resource":""}],"metadata-reference-date":[{"type":"publication","value":"2023-07-24"},{"type":"revision","value":"2024-06-04"}],"relationships_as_object":[],"harvest_document_content":"\n \n \n \n \n \n ca.cioos\n \n \n \n \n bca1b181-4f0e-4373-bf83-13460b6aef59\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n UQAR-ISMER\n \n \n \n \n \n \n \n \n \n \n \n \n \n 310 Allée des ursulines\n \n \n Rimouski\n \n \n Canada\n \n \n \n \n \n \n https://www.ismer.ca/\n \n \n WWW:LINK\n \n \n \n \n \n \n \n \n \n \n \n Chaillou, Gwénaëlle\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n gwenaelle_chaillou@uqar.ca\n \n \n \n \n \n \n \n \n https://orcid.org/0000-0002-4170-8852\n \n \n \n \n professeur\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n UQAR-ISMER\n \n \n \n \n \n \n \n \n \n \n \n \n \n 310 Allée des ursulines\n \n \n Rimouski\n \n \n Canada\n \n \n \n \n \n \n https://www.ismer.ca/\n \n \n WWW:LINK\n \n \n \n \n \n \n \n \n \n \n \n Chaillou, Gwénaëlle\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n gwenaelle_chaillou@uqar.ca\n \n \n \n \n \n \n \n \n https://orcid.org/0000-0002-4170-8852\n \n \n \n \n professeur\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n UQAR-ISMER\n \n \n \n \n \n \n \n \n \n \n \n \n \n 310 Allée des ursulines\n \n \n Rimouski\n \n \n Canada\n \n \n \n \n \n \n https://www.ismer.ca/\n \n \n WWW:LINK\n \n \n \n \n \n \n \n \n \n \n \n Chaillou, Gwénaëlle\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n gwenaelle_chaillou@uqar.ca\n \n \n \n \n \n \n \n \n https://orcid.org/0000-0002-4170-8852\n \n \n \n \n professeur\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n UQAR-ISMER\n \n \n \n \n \n \n \n \n \n \n \n \n \n 310 Allée des ursulines\n \n \n Rimouski\n \n \n Canada\n \n \n \n \n \n \n https://www.ismer.ca/\n \n \n WWW:LINK\n \n \n \n \n \n \n \n \n \n \n \n Chaillou, Gwénaëlle\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n gwenaelle_chaillou@uqar.ca\n \n \n \n \n \n \n \n \n https://orcid.org/0000-0002-4170-8852\n \n \n \n \n professeur\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n UQAR-ISMER\n \n \n \n \n \n \n \n \n \n \n \n \n \n 310 Allée des ursulines\n \n \n Rimouski\n \n \n Canada\n \n \n \n \n \n \n https://www.ismer.ca/\n \n \n WWW:LINK\n \n \n \n \n \n \n \n \n \n \n \n Chaillou, Gwénaëlle\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n gwenaelle_chaillou@uqar.ca\n \n \n \n \n \n \n \n \n https://orcid.org/0000-0002-4170-8852\n \n \n \n \n professeur\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n UQAR-ISMER\n \n \n \n \n \n \n \n \n \n \n \n \n \n 310 Allée des ursulines\n \n \n Rimouski\n \n \n Canada\n \n \n \n \n \n \n https://www.ismer.ca/\n \n \n WWW:LINK\n \n \n \n \n \n \n \n \n \n \n \n Chaillou, Gwénaëlle\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n gwenaelle_chaillou@uqar.ca\n \n \n \n \n \n \n \n \n https://orcid.org/0000-0002-4170-8852\n \n \n \n \n professeur\n \n \n \n \n \n \n \n \n \n \n 2024-06-04T14:07:51.233Z\n \n \n revision\n \n \n \n \n \n \n 2023-07-24\n \n \n publication\n \n \n \n \n \n \n ISO 19115-1 Geographic information - Metadata\n \n \n First Edition 2014-04-01\n \n \n \n \n \n \n ISO 19115-2 Geographic information - Metadata\n \n \n Second Edition 2019-01\n \n \n \n \n \n \n ISO 19115-1 Geographic Information - Metadata Amendment 1\n \n \n 2018-02\n \n \n \n \n \n \n Canadian Integrated Ocean Observing System Metadata Profile of ISO 19115\n \n \n \n \n 2019-11-06\n \n \n publication\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n CTD Data from the Maritime Estuary and Gulf of St. Lawrence from the TReX Mission (Tracer Release EXperiment) - Deep 01\n \n \n Données CTD de l'estuaire maritime et golfe du St-Laurent de la mission TReX (Tracer Release EXperiment ) - deep 01\n \n \n \n \n \n \n 2021-10-23\n \n \n creation\n \n \n \n \n \n \n 2022-12-15\n \n \n revision\n \n \n \n \n 1.1\n \n \n \n \n https://doi.org/10.26071/ogsl-bca1b181-4f0e\n \n \n \n \n \n \n \n \n \n \n \n UQAR-ISMER\n \n \n \n \n \n \n \n \n \n \n \n \n \n 310 Allée des ursulines\n \n \n Rimouski\n \n \n Canada\n \n \n \n \n \n \n https://www.ismer.ca/\n \n \n WWW:LINK\n \n \n \n \n \n \n \n \n \n \n \n Chaillou, Gwénaëlle\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n gwenaelle_chaillou@uqar.ca\n \n \n \n \n \n \n \n \n https://orcid.org/0000-0002-4170-8852\n \n \n \n \n professeur\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n UQAR-ISMER\n \n \n \n \n \n \n \n \n \n \n \n \n \n 310 Allée des ursulines\n \n \n Rimouski\n \n \n Canada\n \n \n \n \n \n \n https://www.ismer.ca/\n \n \n WWW:LINK\n \n \n \n \n \n \n \n \n \n \n \n Chaillou, Gwénaëlle\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n gwenaelle_chaillou@uqar.ca\n \n \n \n \n \n \n \n \n https://orcid.org/0000-0002-4170-8852\n \n \n \n \n professeur\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n UQAR-ISMER\n \n \n \n \n \n \n \n \n \n \n \n \n \n 310 Allée des ursulines\n \n \n Rimouski\n \n \n Canada\n \n \n \n \n \n \n https://www.ismer.ca/\n \n \n WWW:LINK\n \n \n \n \n \n \n \n \n \n \n \n Chaillou, Gwénaëlle\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n gwenaelle_chaillou@uqar.ca\n \n \n \n \n \n \n \n \n https://orcid.org/0000-0002-4170-8852\n \n \n \n \n professeur\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n UQAR-ISMER\n \n \n \n \n \n \n \n \n \n \n \n \n \n 310 Allée des ursulines\n \n \n Rimouski\n \n \n Canada\n \n \n \n \n \n \n https://www.ismer.ca/\n \n \n WWW:LINK\n \n \n \n \n \n \n \n \n \n \n \n Chaillou, Gwénaëlle\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n gwenaelle_chaillou@uqar.ca\n \n \n \n \n \n \n \n \n https://orcid.org/0000-0002-4170-8852\n \n \n \n \n professeur\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n UQAR-ISMER\n \n \n \n \n \n \n \n \n \n \n \n \n \n 310 Allée des ursulines\n \n \n Rimouski\n \n \n Canada\n \n \n \n \n \n \n https://www.ismer.ca/\n \n \n WWW:LINK\n \n \n \n \n \n \n \n \n \n \n \n Chaillou, Gwénaëlle\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n gwenaelle_chaillou@uqar.ca\n \n \n \n \n \n \n \n \n https://orcid.org/0000-0002-4170-8852\n \n \n \n \n professeur\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n UQAR-ISMER\n \n \n \n \n \n \n \n \n \n \n \n \n \n 310 Allée des ursulines\n \n \n Rimouski\n \n \n Canada\n \n \n \n \n \n \n https://www.ismer.ca/\n \n \n WWW:LINK\n \n \n \n \n \n \n \n \n \n \n \n Chaillou, Gwénaëlle\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n gwenaelle_chaillou@uqar.ca\n \n \n \n \n \n \n \n \n https://orcid.org/0000-0002-4170-8852\n \n \n \n \n professeur\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n GEOMAR Helmholtz Centre for Ocean Research Kiel\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n Kiel\n \n \n Germany\n \n \n \n \n \n \n http://www.geomar.de/en/\n \n \n WWW:LINK\n \n \n \n \n \n \n \n \n \n \n \n https://ror.org/02h2x0161\n \n \n \n \n \n \n Tanhua, Toste\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n ttanhua@geomar.de\n \n \n \n \n \n \n \n \n https://orcid.org/0000-0002-0313-2557\n \n \n \n \n Professor\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n GEOMAR Helmholtz Centre for Ocean Research Kiel\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n Kiel\n \n \n Germany\n \n \n \n \n \n \n http://www.geomar.de/en/\n \n \n WWW:LINK\n \n \n \n \n \n \n \n \n \n \n \n https://ror.org/02h2x0161\n \n \n \n \n \n \n Tanhua, Toste\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n ttanhua@geomar.de\n \n \n \n \n \n \n \n \n https://orcid.org/0000-0002-0313-2557\n \n \n \n \n Professor\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n Université du Québec à Rimouski\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n Rimouski\n \n \n Canada\n \n \n \n \n \n \n http://www.uqar.ca/\n \n \n WWW:LINK\n \n \n \n \n \n \n \n \n \n \n \n https://ror.org/049jtt335\n \n \n \n \n \n \n Hérard, Olivier\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n olivier.herard@uqar.ca\n \n \n \n \n \n \n étudiant\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n Dalhousie University\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n Halifax\n \n \n Canada\n \n \n \n \n \n \n http://www.dal.ca/\n \n \n WWW:LINK\n \n \n \n \n \n \n \n \n \n \n \n https://ror.org/01e6qks80\n \n \n \n \n \n \n Nesbitt, William\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n William.Nesbitt@dal.ca\n \n \n \n \n \n \n Étudiant\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n Dalhousie University\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n Halifax\n \n \n Canada\n \n \n \n \n \n \n http://www.dal.ca/\n \n \n WWW:LINK\n \n \n \n \n \n \n \n \n \n \n \n https://ror.org/01e6qks80\n \n \n \n \n \n \n Wallace, Douglas\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n Douglas.Wallace@Dal.Ca\n \n \n \n \n \n \n \n \n https://orcid.org/0000-0001-7832-3887\n \n \n \n \n professeur\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n Dalhousie University\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n Halifax\n \n \n Canada\n \n \n \n \n \n \n http://www.dal.ca/\n \n \n WWW:LINK\n \n \n \n \n \n \n \n \n \n \n \n https://ror.org/01e6qks80\n \n \n \n \n \n \n Wallace, Douglas\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n Douglas.Wallace@Dal.Ca\n \n \n \n \n \n \n \n \n https://orcid.org/0000-0001-7832-3887\n \n \n \n \n professeur\n \n \n \n \n \n \n \n \n \n \n The TReX (Tracer ReleaseEXperiment) project is an interdisciplinary research project that aims to develop and demonstrate Canada's ability to predict the spread of contaminants and respond to their accidental discharges in coastal marine environments. The present CTD dataset comes from the first mission of the Trex-Deep phase, which aims to study transport and dispersal processes in the bottom waters of the Laurentian Channel, from the maritime estuary to Cabot Strait. This unique experiment, which combines the expertise of researchers from Quebec, Nova Scotia, and Germany, is used to predict the dispersal and advection of certain contaminants and understand the climate-related biogeochemical processes that control hypoxia and acidification conditions at the head of the Laurentian Channel. \n\nThis CTD dataset from the first mission in October 2021 presents vertical profiles of salinity, temperature, dissolved oxygen, density, and fluorescence from 4 to 360 m for about thirty stations between Rimouski and Cabot Strait. Although the probes were calibrated by the manufacturer during the year, discrete salinity samples were taken throughout the water column and analyzed on a Guildline Autosal 8400 salinometer calibrated with standard IAPSO (International Association for the Physical Sciences of the Oceans) seawater and CTD profiles reprocessed after the mission. Similarly, dissolved oxygen concentrations were determined by Winkler chemical titration (Grasshoff et al., 1999) on about forty discrete water samples collected directly from Niskin bottles. The relative standard deviation, based on repeated analyses of samples taken from the same Niskin bottle, was less than 1%. These measurements were also used to calibrate the SBE-43 oxygen probe mounted on the rosette.\n\nIt was acquired jointly by the teams of Douglas Wallace (U. Dalhousie), Gwénaëlle Chaillou (ISMER-UQAR) and Toste Tanhua (GEOMAR).\n \n \n Le projet TReX (Tracer Release eXperiment) est un projet de recherche intersectoriel qui vise à développer et à démontrer la capacité du Canada à prédire la dispersion de contaminants et à répondre à leurs déversements accidentels dans les environnements marins côtiers. Le présent jeu de données CTD provient de la première mission de la phase TReX-deep qui vise l’étude des processus de transport et dispersion dans les eaux de fond du chenal Laurentien, de l'estuaire maritime au détroit de Cabot. Cette expérience unique, qui combine les expertises de chercheurs du Québec, de la Nouvelle-Écosse et de l'Allemagne, est utilisée non seulement pour prévoir la dispersion et l'advection de certains contaminants, mais aussi pour comprendre les processus biogéochimiques liés au climat qui contrôlent les conditions d’hypoxie et d’acidification à la tête du chenal Laurentien. \n\n\nCe jeu de données CTD issu de la première mission en octobre 2021 présente des profils verticaux de salinité, température, oxygène dissous, densité, et fluorescence de 4 à 360 m pour une trentaine de stations entre Rimouski et le détroit de Cabot. Bien que les sondes soient calibrées par le fabricant au cours de l'année, des échantillons discrets de salinité ont été prélevés dans toute la colonne d'eau et analysés sur un salinomètre Guildline Autosal 8400 calibré avec l'eau de mer standard de l'IAPSO (International Association for the Physical Sciences of the Oceans) et les profils CTD retraités après la mission. De même, les concentrations d'oxygène dissous ont été déterminées par titrage chimique Winkler (Grasshoff et al., 1999) sur une quarantaine d'échantillons d'eau discrets collectés directement dans les bouteilles Niskin. L'écart-type relatif, basé sur des analyses répétées d'échantillons prélevés dans la même bouteille Niskin, était inférieur à 1 %. Ces mesures ont également servi à étalonner la sonde à oxygène SBE-43 montée sur la rosette.\n\nIl a été acquis conjointement par les équipes de Douglas Wallace (U. Dalhousie), Gwénaëlle Chaillou (ISMER-UQAR) et Toste Tanhua (GEOMAR).\n \n \n \n \n \n \n \n \n \n \n oceans\n \n \n \n \n \n \n true\n \n \n -68.81\n \n \n -59.18\n \n \n 46.32\n \n \n 50.7\n \n \n \n \n \n \n \n \n \n \n 4.0\n \n \n 360.0\n \n \n \n \n \n \n 5831\n \n \n EPSG\n \n \n 2012-08-10\n \n \n EPSG::5831 - Instantaneous Water Level depth - Depth relative to instantaneous water level uncorrected for tide. Not specific to any location or epoch.\n \n \n \n \n vertical\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n 2021-10-23T16:00:00.000Z\n 2021-10-30T16:00:00.000Z\n \n \n \n \n \n \n \n \n \n asNeeded\n \n \n Generated from https://cioos-siooc.github.io/metadata-entry-form#/en/stlaurent/DYzf5PwZt9VlWTEckIRdRx3NvmI2/-NTUINbTnOx6k86IMhJL\n \n \n \n \n \n \n Oceans\n \n \n \n \n Government of Canada Core Subject Thesaurus\n \n \n \n \n 2016-10-13\n \n \n \n \n \n \n \n N/A\n \n \n \n \n \n \n \n \n knowledge improvement\n \n \n climate change\n \n \n sampling\n \n \n oceanographic missions\n \n \n physical-chemical\n \n \n water temperature\n \n \n hypoxia\n \n \n \n \n amélioration des connaissances\n \n \n \n \n \n \n changement climatique\n \n \n \n \n \n \n échantillonnage\n \n \n \n \n \n \n missions océanographique\n \n \n \n \n \n \n physico-chimie\n \n \n \n \n \n \n température de l'eau\n \n \n \n \n \n \n hypoxie\n \n \n \n \n \n \n default\n \n \n \n \n \n \n \n \n oxygen\n \n \n seaSurfaceSalinity\n \n \n seaSurfaceTemperature\n \n \n subSurfaceSalinity\n \n \n subSurfaceTemperature\n \n \n \n \n Oxygène\n \n \n \n \n \n \n Salinité de surface\n \n \n \n \n \n \n Température de surface\n \n \n \n \n \n \n Salinité sous la surface\n \n \n \n \n \n \n Température sous la surface\n \n \n \n \n \n \n eov\n \n \n \n \n \n \n \n \n RQM\n \n \n project\n \n \n \n \n \n \n \n \n Creative Commons Attribution 4.0 Attribution\n \n \n \n \n CC-BY-4.0\n \n \n \n \n \n \n https://creativecommons.org/licenses/by/4.0\n \n \n WWW:LINK\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n UQAR-ISMER\n \n \n \n \n \n \n \n \n \n \n \n \n \n 310 Allée des ursulines\n \n \n Rimouski\n \n \n Canada\n \n \n \n \n \n \n https://www.ismer.ca/\n \n \n WWW:LINK\n \n \n \n \n \n \n \n \n \n \n \n Chaillou, Gwénaëlle\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n gwenaelle_chaillou@uqar.ca\n \n \n \n \n \n \n \n \n https://orcid.org/0000-0002-4170-8852\n \n \n \n \n professeur\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n https://erddap.ogsl.ca/erddap/tabledap/uqarIsmerCtdTrex.html\n \n \n WWW:LINK\n \n \n CTD Files\n \n \n Données CTD\n \n \n \n \n CTD data from the Maritime Estuary and Gulf of St. Lawrence from the TReX mission\n \n \n Données CTD de l'estuaire maritime et golfe du St-Laurent de la mission TReX\n \n \n \n \n \n \n \n \n \n \n \n \n asNeeded\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n R/V Coriolis II\n \n \n \n \n The cruise was carried out aboard the R/V Coriolis II.\n \n \n La mission a été effectuée à bord du R/V Coriolis II.\n \n \n \n \n \n \n \n \n \n \n Seabird\n \n \n \n \n Seabird 911Plusconductivity–temperature–depth (CTD) probe\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n Seabird®SBE-43 oxygen probe\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n Seapoint® fluorometer\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n Niskin bottles\n \n \n \n \n \n \n \n \n \n \n \n \n \n research vessel\n \n \n \n \n \n \n","notes_translation_method":{"en":""},"relationships_as_subject":[],"title_translation_method":{"en":""},"metadata-point-of-contact":[{"role":["custodian","distributor","owner","pointOfContact","principalInvestigator","coAuthor"],"individual-name":"Chaillou, Gwénaëlle","organisation-name":"UQAR-ISMER","contact-info_email":"gwenaelle_chaillou@uqar.ca","individual-uri_code":"https://orcid.org/0000-0001-7832-3887","organisation-uri_code":"https://ror.org/01e6qks80","individual-uri_version":"","individual-uri_authority":"","individual-uri_code-space":"","contact-info_online-resource":""}],"included_in_data_catalogue":[{"url":"https://catalogue.juno.cioos.ca","name":{"en":"CIOOS Catalogue","fr":"Catalogue du SIOOC"},"description":""},{"url":"https://catalogue.ogsl.ca","name":"OGSL/SLGO","description":""}],"keywords_translation_method":{"en":""},"unique-resource-identifier-full":[{"code":"https://doi.org/10.26071/ogsl-bca1b181-4f0e","version":"","authority":"","code-space":""}]}}