Isotopic characterization of water masses in the Southeast Pacific region: Paleoceanography implications

DOI

This study aims at measuring and understanding the characteristics of the Southeast Pacific (SEP) water masses using stable isotopes of oxygen, deuterium and dissolved inorganic carbon along with other parameters such as temperature, salinity and oxygen, and nutrient concentrations. The data set summarizes new measurements and published data from 1992 to 2018 bellow 55 m water depth from the following expeditions: TAITAO, SO-261, SO-245, 316N138-3 (P06), 49NZ20030909 (P06), 318M20100105 (P06), LOWPHOX 1, RR9702a, SO-102, SO-211, Station18-Udec, CIMAR-21, Crio1812, 316N138_12 (P19), M93. In all expeditions, Seabird-CTDs attached to Rosettes of Niskin bottles were used to measure conductivity, temperature, pressure and oxygen. Carbon, oxygen, deuterium and nutrient samples were siphoned from Niskin bottles into 4-15 mL plastic vials, measured onboard or stored at -20 ºC for later measurements. In the paper, the data is separated into coastal (71-78 °W) and oceanic section (82-98 °W). However, we incorporate in the data reservoir as well an intermediate section (79-81 °W). Several paleoceanographic studies in marine sediments records from the Peru-Chile Continental Margin compare their results with oceanic data, due to insufficient hydrological characterization of the coastal section. The new data provide here were collected near the sediment core sites in the region, giving the chance to begin used as a present-day hydrological analogue for paleoenvironmental reconstructions.

Identifier
DOI https://doi.pangaea.de/10.1594/PANGAEA.940085
Related Identifier References https://doi.org/10.1029/2021JC017525
Related Identifier References https://github.com/Paleobiogeochemistry/isowater_SEPregion
Related Identifier IsDerivedFrom https://doi.org/10.1594/PANGAEA.899228
Related Identifier IsDerivedFrom https://doi.org/10.1594/PANGAEA.820536
Related Identifier IsDerivedFrom https://doi.org/10.1594/PANGAEA.820538
Related Identifier IsDerivedFrom https://doi.org/10.1594/PANGAEA.820557
Related Identifier IsDerivedFrom https://doi.org/10.1594/PANGAEA.820564
Related Identifier IsDocumentedBy https://doi.org/10.5194/essd-13-5565-2021
Related Identifier IsDocumentedBy https://doi.org/10.1038/s41467-021-21871-4
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.940085
Provenance
Creator Reyes-Macaya, Dharma ORCID logo; Hoogakker, Babette A A ORCID logo; Martínez Méndez, Gema ORCID logo; Llanillo, Pedro (ORCID: 0000-0002-9308-501X); Mohtadi, Mahyar ORCID logo; Grasse, Patricia ORCID logo; Mix, Alan C ORCID logo; Leng, Melanie J ORCID logo; Struck, Ulrich; McCorkle, Daniel C; Troncoso, Macarena ORCID logo; Gayo, Eugenia ORCID logo; Lange, Carina Beatriz ORCID logo; Farías, Laura ORCID logo; Carhuapoma, Wilson ORCID logo; Graco, Michelle ORCID logo; Cornejo-D'Ottone, Marcela; De Pol-Holz, Ricardo ORCID logo; Fernández, Camila; Narvaez, Diego; Vargas, C A ORCID logo; García-Araya, Francisco; Hebbeln, Dierk ORCID logo
Publisher PANGAEA
Publication Year 2024
Funding Reference Agencia Nacional de Investigación y Desarrollo https://doi.org/10.13039/501100002848 Crossref Funder ID 15110009 https://www.cr2.cl El Centro de Ciencia del Clima y la Resiliencia; Agencia Nacional de Investigación y Desarrollo https://doi.org/10.13039/501100002848 Crossref Funder ID AUB 150006/12806 Chilean National Commission for Scientific and Technological Research (CONICYT); Federal Ministry of Education and Research https://doi.org/10.13039/501100002347 Crossref Funder ID 03G0102A ; Federal Ministry of Education and Research https://doi.org/10.13039/501100002347 Crossref Funder ID 03G0156A ; Federal Ministry of Education and Research https://doi.org/10.13039/501100002347 Crossref Funder ID 03G0211A ; German Academic Exchange Service https://doi.org/10.13039/501100001655 Crossref Funder ID 57144001 ; German Research Foundation https://doi.org/10.13039/501100001659 Crossref Funder ID 27542298 https://gepris.dfg.de/gepris/projekt/27542298 Climate - Biogeochemistry Interactions in the Tropical Ocean; Millennium Institute of Oceanography https://doi.org/10.13039/501100016975 Crossref Funder ID ICN12_019 ; Ministry of education, Chile https://doi.org/10.13039/501100002847 Crossref Funder ID 15150003 https://www.conicyt.cl/fondap/fondap-program/ FONDAP
Rights Creative Commons Attribution 4.0 International; Data access is restricted (moratorium, sensitive data, license constraints); https://creativecommons.org/licenses/by/4.0/
OpenAccess false
Representation
Resource Type Dataset
Format application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
Size 495.1 kBytes
Discipline Biogeochemistry; Biospheric Sciences; Geosciences; Natural Sciences