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Il faisait partie de l'\\u00e9tape 3a de l'exp\\u00e9dition Amundsen du CCGS dans l'oc\\u00e9an Arctique en 2009 (ArcticNet 0903). L'\\u00e9chantillonnage a commenc\\u00e9 dans le delta du fleuve Mackenzie et s'est poursuivi dans la mer de Beaufort (plateau, talus et bassin profond du Canada). Diverses mesures (temp\\u00e9rature, salinit\\u00e9, nutriments, alcalinit\\u00e9, pH, production primaire, production bact\\u00e9rienne) et des \\u00e9chantillonnages (eau de mer, particules marines) ont \\u00e9t\\u00e9 effectu\\u00e9s dans 10 stations. Des mesures en cours (temp\\u00e9rature, salinit\\u00e9, gaz \\u00e0 l'\\u00e9tat de traces) et des \\u00e9chantillonnages (particules marines) ont \\u00e9galement \\u00e9t\\u00e9 effectu\\u00e9s le long de la piste de croisi\\u00e8re. Les outils d'\\u00e9chantillonnage des stations \\u00e9taient le CTD/Rosette du navire (ArcticNet), un syst\\u00e8me CTD/Rosette Trace-Metal (UVic/UBC) et des pompes in situ \\u00e0 grand volume (UBC).\\n\\nNous avons effectu\\u00e9 des mesures et pr\\u00e9lev\\u00e9 des \\u00e9chantillons pour documenter une s\\u00e9rie de param\\u00e8tres physiques (temp\\u00e9rature, salinit\\u00e9, couverture de glace, p\\u00e9n\\u00e9tration de la lumi\\u00e8re), chimiques (nutriments, m\\u00e9taux traces, gaz \\u00e0 l'\\u00e9tat de traces, radio-isotopes, isotopes stables) et biologiques (assemblages de phytoplancton et microbiens, productivit\\u00e9 primaire et microbienne, quotas de phytoplancton en traces) en relation avec la proximit\\u00e9 du delta du Mackenzie, bathym\\u00e9trie du fond marin et couverture de glace pour \\u00e9lucider les processus influen\\u00e7ant la croissance du phytoplancton et le cycle du carbone dans l'oc\\u00e9an Arctique. En particulier, nous avons pr\\u00e9lev\\u00e9 des \\u00e9chantillons pour \\u00e9tudier les processus qui fournissent et \\u00e9liminent les m\\u00e9taux traces, les nutriments et le carbone vers et depuis la partie sup\\u00e9rieure de l'oc\\u00e9an, et nous avons men\\u00e9 des exp\\u00e9riences \\u00e0 bord de navires pour \\u00e9tudier comment la productivit\\u00e9 biologique est affect\\u00e9e par diverses conditions chimiques et physiques.\\n\\nGr\\u00e2ce \\u00e0 une combinaison de mesures embarqu\\u00e9es, d'exp\\u00e9riences et d'analyses de laboratoire ult\\u00e9rieures, notre programme de recherche vise \\u00e0\\u00a0: (i) documenter les voies d'addition, d'\\u00e9limination et de cycle des principaux oligo-\\u00e9l\\u00e9ments qui agissent comme micronutriments biologiques ou traceurs des cycles du carbone et des nutriments dans l'oc\\u00e9an Arctique\\u00a0; (ii) \\u00e9lucider les effets potentiels de la modification de la couverture de glace et du d\\u00e9bit des rivi\\u00e8res sur la productivit\\u00e9, la s\\u00e9questration du carbone et les \\u00e9missions de gaz \\u00e0 l'\\u00e9tat de trace dans l'oc\\u00e9an Arctique\\u00a0; (iii) d\\u00e9velopper des traceurs chimiques \\u00e9tablir un registre s\\u00e9dimentaire historique de l'oc\\u00e9an Arctique productivit\\u00e9 en relation avec le changement climatique naturel \\u00e0 long terme.\\\", \\\"edition-date\\\": \\\"\\\", \\\"publisher\\\": \\\"\\\", \\\"title\\\": \\\"GEOTRACES\\u00a0: \\u00e9tude multi-traceurs de l'effet du changement climatique sur les cycles des nutriments et du carbone dans l'oc\\u00e9an Arctique\\\", \\\"version\\\": \\\"1.0\\\", \\\"language\\\": \\\"fr\\\", \\\"URL\\\": \\\"https://catalogue.cioos.ca/dataset/ca-cioos_ccin-11458?local=fr\\\"}]"},"keywords":{"en":["oceans","trace-elements","marine-ecology","beaufort-sea-arctic-ocean","arctic-ocean","beaufort-sea","carbon-fluxes","sea-ice","nutrient-cycling","ice-thickness","climate-change","mackenzie-shelf","ipy-geotraces","seaice","inorganiccarbon"],"fr":["ipy-geotraces","glace-de-mer","carbone-inorganique"]},"num_tags":0,"progress":"completed","projects":["IPY-GEOTRACES"],"owner_org":"ebfcf2b6-dac6-418e-9193-f995479939a1","resources":[{"id":"01865b7f-64f2-40ce-b989-5875a280bcdd","url":"https://docs.google.com/forms/d/e/1FAIpQLSdvBGLgaXHF1auiYcF2cKuoZzVTVevtkyUyL5lKSBq3DlN2Fg/viewform?usp=pp_url&entry.1112188064=https%3A%2F%2Fcatalogue.amundsenscience.com%2Fdataset%2Fca-cioos_ccin-11458&entry.1881810302=%5B%7B%22givenNames%22%3A%20%22International%22%2C%20%22lastName%22%3A%20%22Polar%20Year%22%2C%20%22indEmail%22%3A%20%22ipy_dacn%40scholarsportal.info%22%2C%20%22orgName%22%3A%20%22International%20Polar%20Year%20Data%20Assembly%20Centre%20Network%22%2C%20%22orgEmail%22%3A%20%22%22%7D%5D","hash":"","name":"Formulaire de demande d'accès aux données","size":null,"state":"active","format":"HTML","created":"2026-09-05T17:45:31.794190","mimetype":null,"position":0,"url_type":null,"cache_url":null,"package_id":"9f274571-a6b8-4e4f-be14-b532d7041fbd","description":"Les données ne sont pas accessibles publiquement. 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Il faisait partie de l'étape 3a de l'expédition Amundsen du CCGS dans l'océan Arctique en 2009 (ArcticNet 0903). L'échantillonnage a commencé dans le delta du fleuve Mackenzie et s'est poursuivi dans la mer de Beaufort (plateau, talus et bassin profond du Canada). Diverses mesures (température, salinité, nutriments, alcalinité, pH, production primaire, production bactérienne) et des échantillonnages (eau de mer, particules marines) ont été effectués dans 10 stations. Des mesures en cours (température, salinité, gaz à l'état de traces) et des échantillonnages (particules marines) ont également été effectués le long de la piste de croisière. Les outils d'échantillonnage des stations étaient le CTD/Rosette du navire (ArcticNet), un système CTD/Rosette Trace-Metal (UVic/UBC) et des pompes in situ à grand volume (UBC).\n\nNous avons effectué des mesures et prélevé des échantillons pour documenter une série de paramètres physiques (température, salinité, couverture de glace, pénétration de la lumière), chimiques (nutriments, métaux traces, gaz à l'état de traces, radio-isotopes, isotopes stables) et biologiques (assemblages de phytoplancton et microbiens, productivité primaire et microbienne, quotas de phytoplancton en traces) en relation avec la proximité du delta du Mackenzie, bathymétrie du fond marin et couverture de glace pour élucider les processus influençant la croissance du phytoplancton et le cycle du carbone dans l'océan Arctique. En particulier, nous avons prélevé des échantillons pour étudier les processus qui fournissent et éliminent les métaux traces, les nutriments et le carbone vers et depuis la partie supérieure de l'océan, et nous avons mené des expériences à bord de navires pour étudier comment la productivité biologique est affectée par diverses conditions chimiques et physiques.\n\nGrâce à une combinaison de mesures embarquées, d'expériences et d'analyses de laboratoire ultérieures, notre programme de recherche vise à : (i) documenter les voies d'addition, d'élimination et de cycle des principaux oligo-éléments qui agissent comme micronutriments biologiques ou traceurs des cycles du carbone et des nutriments dans l'océan Arctique ; (ii) élucider les effets potentiels de la modification de la couverture de glace et du débit des rivières sur la productivité, la séquestration du carbone et les émissions de gaz à l'état de trace dans l'océan Arctique ; (iii) développer des traceurs chimiques établir un 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codeList=\"https://standards.iso.org/iso/19115/resources/Codelists/cat/codelists.xml#CI_RoleCode\" codeListValue=\"collaborator\"/>\n              </cit:role>\n              <cit:party>\n                <cit:CI_Individual>\n                  <cit:name>\n                    <gco:CharacterString>Maldonado, M.</gco:CharacterString>\n                  </cit:name>\n                  <cit:contactInfo>\n                    <cit:CI_Contact></cit:CI_Contact>\n                  </cit:contactInfo>\n                  <cit:positionName>\n                    <gco:CharacterString></gco:CharacterString>\n                  </cit:positionName>\n                </cit:CI_Individual>\n              </cit:party>\n            </cit:CI_Responsibility>\n          </cit:citedResponsibleParty>\n          <cit:citedResponsibleParty>\n            <cit:CI_Responsibility>\n              <cit:role>\n                <cit:CI_RoleCode codeList=\"https://standards.iso.org/iso/19115/resources/Codelists/cat/codelists.xml#CI_RoleCode\" codeListValue=\"collaborator\"/>\n              </cit:role>\n              <cit:party>\n                <cit:CI_Individual>\n                  <cit:name>\n                    <gco:CharacterString>Tortell, P.</gco:CharacterString>\n                  </cit:name>\n                  <cit:contactInfo>\n                    <cit:CI_Contact></cit:CI_Contact>\n                  </cit:contactInfo>\n                  <cit:positionName>\n                    <gco:CharacterString></gco:CharacterString>\n                  </cit:positionName>\n                </cit:CI_Individual>\n              </cit:party>\n            </cit:CI_Responsibility>\n          </cit:citedResponsibleParty>\n          <cit:citedResponsibleParty>\n            <cit:CI_Responsibility>\n              <cit:role>\n                <cit:CI_RoleCode codeList=\"https://standards.iso.org/iso/19115/resources/Codelists/cat/codelists.xml#CI_RoleCode\" codeListValue=\"collaborator\"/>\n              </cit:role>\n              <cit:party>\n                <cit:CI_Individual>\n                  <cit:name>\n                    <gco:CharacterString>Rivkin, R.</gco:CharacterString>\n                  </cit:name>\n                  <cit:contactInfo>\n                    <cit:CI_Contact></cit:CI_Contact>\n                  </cit:contactInfo>\n                  <cit:positionName>\n                    <gco:CharacterString></gco:CharacterString>\n                  </cit:positionName>\n                </cit:CI_Individual>\n              </cit:party>\n            </cit:CI_Responsibility>\n          </cit:citedResponsibleParty>\n        </cit:CI_Citation>\n      </mri:citation>\n      <mri:abstract xsi:type=\"lan:PT_FreeText_PropertyType\">\n        <gco:CharacterString>Our sampling program took place from August 27, 2009 through September 12, 2009. It was part of Leg 3a of the 2009 CCGS Amundsen Expedition in the Arctic Ocean (ArcticNet 0903). Sampling started in the Mackenzie River delta and continued into the Beaufort Sea (Shelf, slope and deep Canada Basin). Various measurements (temperature, salinity, nutrients, alkalinity, pH, primary production, bacterial production) and sampling (seawater, marine particles) were conducted at 10 stations. Underway measurements (temperature, salinity, trace gases) and sampling (marine particles) were also conducted along the cruise track. Sampling tools on stations were the ship&#39;s CTD/rosette (ArcticNet), a Trace-Metal CTD/rosette system (UVic / UBC) and large volume in-situ pumps (UBC).\r\n\r\nWe conducted measurements and collected samples to document a suite of key physical (temperature, salinity, ice cover, light penetration), chemical (nutrients, trace metals, trace gases, radioisotopes, stable isotopes) and biological (phytoplankton and microbial assemblages, primary and microbial productivity, trace metal phytoplankton quotas) parameters in relation to proximity to the Mackenzie River delta, seafloor bathymetry and ice cover to elucidate the processes influencing phytoplankton growth and carbon cycling in the Arctic Ocean. In particular, we collected samples to study the processes which supply and remove trace metals, nutrients and carbon to and from the upper ocean, and conducted ship-board experiments to study how biological productivity is affected by various chemical and physical conditions.\r\n\r\nThrough a combination of on-board measurements, experiments and subsequent laboratory analysis, our research program aims at: (i) documenting the pathways of addition, removal and cycling of key trace elements which act as biological micronutrients or tracers of carbon and nutrient cycles in the Arctic Ocean; (ii) elucidating the potential effects of changing ice cover and river discharge on productivity, carbon sequestration and trace gas emission in the Arctic Ocean; (iii) developing chemical tracers to establish a historical sedimentary record of Arctic Ocean productivity in relation to long term natural climate change.</gco:CharacterString>\n        <lan:PT_FreeText>\n          <lan:textGroup xlink:href=\"https://cioos.ca/translation_method\" xlink:role=\"translation\" xlink:title=\"text translated using the Amazon translate service / texte traduit à l&#39;aide du service de traduction Amazon\">\n            <lan:LocalisedCharacterString locale=\"#fr\">Notre programme d&#39;échantillonnage s&#39;est déroulé du 27 août 2009 au 12 septembre 2009. Il faisait partie de l&#39;étape 3a de l&#39;expédition Amundsen du CCGS dans l&#39;océan Arctique en 2009 (ArcticNet 0903). L&#39;échantillonnage a commencé dans le delta du fleuve Mackenzie et s&#39;est poursuivi dans la mer de Beaufort (plateau, talus et bassin profond du Canada). Diverses mesures (température, salinité, nutriments, alcalinité, pH, production primaire, production bactérienne) et des échantillonnages (eau de mer, particules marines) ont été effectués dans 10 stations. Des mesures en cours (température, salinité, gaz à l&#39;état de traces) et des échantillonnages (particules marines) ont également été effectués le long de la piste de croisière. Les outils d&#39;échantillonnage des stations étaient le CTD/Rosette du navire (ArcticNet), un système CTD/Rosette Trace-Metal (UVic/UBC) et des pompes in situ à grand volume (UBC).\r\n\r\nNous avons effectué des mesures et prélevé des échantillons pour documenter une série de paramètres physiques (température, salinité, couverture de glace, pénétration de la lumière), chimiques (nutriments, métaux traces, gaz à l&#39;état de traces, radio-isotopes, isotopes stables) et biologiques (assemblages de phytoplancton et microbiens, productivité primaire et microbienne, quotas de phytoplancton en traces) en relation avec la proximité du delta du Mackenzie, bathymétrie du fond marin et couverture de glace pour élucider les processus influençant la croissance du phytoplancton et le cycle du carbone dans l&#39;océan Arctique. En particulier, nous avons prélevé des échantillons pour étudier les processus qui fournissent et éliminent les métaux traces, les nutriments et le carbone vers et depuis la partie supérieure de l&#39;océan, et nous avons mené des expériences à bord de navires pour étudier comment la productivité biologique est affectée par diverses conditions chimiques et physiques.\r\n\r\nGrâce à une combinaison de mesures embarquées, d&#39;expériences et d&#39;analyses de laboratoire ultérieures, notre programme de recherche vise à : (i) documenter les voies d&#39;addition, d&#39;élimination et de cycle des principaux oligo-éléments qui agissent comme micronutriments biologiques ou traceurs des cycles du carbone et des nutriments dans l&#39;océan Arctique ; (ii) élucider les effets potentiels de la modification de la couverture de glace et du débit des rivières sur la productivité, la séquestration du carbone et les émissions de gaz à l&#39;état de trace dans l&#39;océan Arctique ; (iii) développer des traceurs chimiques établir un registre sédimentaire historique de l&#39;océan Arctique productivité en relation avec le changement climatique naturel à long terme.</lan:LocalisedCharacterString>\n          </lan:textGroup>\n        </lan:PT_FreeText>\n      </mri:abstract>\n      <mri:credit>\n        <gco:CharacterString></gco:CharacterString>\n      </mri:credit>\n      <mri:status>\n        <mcc:MD_ProgressCode codeList=\"http://standards.iso.org/iso/19115/resources/Codelists/cat/codelists.xml#MD_ProgressCode\" codeListValue=\"completed\"></mcc:MD_ProgressCode>\n      </mri:status>\n      <mri:topicCategory>\n        <mri:MD_TopicCategoryCode>oceans</mri:MD_TopicCategoryCode>\n      </mri:topicCategory>\n      <mri:extent>\n        <gex:EX_Extent>\n          <gex:geographicElement>\n            <gex:EX_GeographicBoundingBox>\n              <gex:extentTypeCode>\n                <gco:Boolean>true</gco:Boolean>\n              </gex:extentTypeCode>\n              <gex:westBoundLongitude>\n                <gco:Decimal>-141.0</gco:Decimal>\n              </gex:westBoundLongitude>\n              <gex:eastBoundLongitude>\n                <gco:Decimal>-132.0</gco:Decimal>\n              </gex:eastBoundLongitude>\n              <gex:southBoundLatitude>\n                <gco:Decimal>69.0</gco:Decimal>\n              </gex:southBoundLatitude>\n              <gex:northBoundLatitude>\n                <gco:Decimal>75.5</gco:Decimal>\n              </gex:northBoundLatitude>\n            </gex:EX_GeographicBoundingBox>\n          </gex:geographicElement>\n        </gex:EX_Extent>\n      </mri:extent>\n      <mri:extent>\n        <gex:EX_Extent>\n          <gex:geographicElement>\n            <gex:EX_GeographicDescription>\n              <gex:extentTypeCode>\n                <gco:Boolean>true</gco:Boolean>\n              </gex:extentTypeCode>\n              <gex:geographicIdentifier>\n                <mcc:MD_Identifier>\n                  <mcc:code>\n                    <gco:CharacterString></gco:CharacterString>\n                  </mcc:code>\n                  <mcc:codeSpace>\n                    <gco:CharacterString>ca.cioos</gco:CharacterString>\n                  </mcc:codeSpace>\n                  <mcc:version>\n                    <gco:CharacterString>1</gco:CharacterString>\n                  </mcc:version>\n                  <mcc:description>\n                    <gco:CharacterString>{&#39;en&#39;: &#39;Beaufort Sea; Arctic Ocean&#39;}</gco:CharacterString>\n                  </mcc:description>\n                </mcc:MD_Identifier>\n              </gex:geographicIdentifier>\n            </gex:EX_GeographicDescription>\n          </gex:geographicElement>\n        </gex:EX_Extent>\n      </mri:extent>\n      <mri:extent>\n        <gex:EX_Extent>\n          <gex:verticalElement>\n            <gex:EX_VerticalExtent>\n              <gex:minimumValue>\n                <gco:Real>0</gco:Real>\n              </gex:minimumValue>\n              <gex:maximumValue>\n                <gco:Real>0</gco:Real>\n              </gex:maximumValue>\n              <gex:verticalCRSId>\n                <mrs:MD_ReferenceSystem>\n                  <mrs:referenceSystemIdentifier>\n                    <mcc:MD_Identifier>\n                      <mcc:code>\n                        <gco:CharacterString>5829</gco:CharacterString>\n                      </mcc:code>\n                      <mcc:codeSpace>\n                        <gco:CharacterString>EPSG</gco:CharacterString>\n                      </mcc:codeSpace>\n                      <mcc:version>\n                        <gco:CharacterString>2012-08-10T00:00:00</gco:CharacterString>\n                      </mcc:version>\n                      <mcc:description>\n                        <gco:CharacterString>Instantaneous Water Level height - Height relative to instantaneous water level uncorrected for tide. 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