Oxygen and nutrient trapping in the southern Benguela Upwelling System


Here, we compiled data obtained from a research cruise with the German RV Meteor (M153) and an oceanographic mooring to demonstrate that a nutrient trapping zone develops in a narrow belt along the coast during the main upwelling season in the southern Benguela Upwelling System (SBUS). It modifies links between the strength of upwelling, productivity and the intensity of the oxygen minim zone (OMZ) in the SBUS. During the cruise M153 shipboard measurements were conducted along a station grid in the SBUS between February 16th and 28th, 2019. This included CTD casts, one TRIAXUS transect and the deployment of one mooring equipped with a Mini Dot Oxygen Sensor (MDO) and Hydrobios MST-12 sediment trap at water-depth of approximately 95.5 m. In order to study the diurnal cycle, four CTD casts were conducted between February 18th and 19th at station 7 close to the mooring location while mooring data and publically available satellite data on sea surface temperature and primary production were used to study the seasonal cycles of the nutrient trapping zone.

DOI https://doi.org/10.1594/PANGAEA.935648
Related Identifier References https://doi.org/10.3389/fmars.2021.730591
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.935648
Creator Rixen, Tim (ORCID: 0000-0001-8376-891X); Lahajnar, Niko; Lamont, Tarron (ORCID: 0000-0001-8464-891X); Koppelmann, Rolf ORCID logo; Martin, B ORCID logo; van Beusekom, Justus; Siddiqui, Claire ORCID logo; Pillay, Keshnee ORCID logo; Meiritz, Luisa Chiara ORCID logo
Publisher PANGAEA
Publication Year 2021
Funding Reference Bundesministerium für Bildung und Forschung, Bonn https://doi.org/10.13039/501100002347 Crossref Funder ID 03F0797A Trophic Transfer Efficiency in the Benguela Current
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Resource Type Bundled Publication of Datasets; Collection
Format application/zip
Size 4 datasets
Discipline Earth System Research
Spatial Coverage (14.930W, -31.020S, 17.261E, 30.643N)
Temporal Coverage Begin 2019-02-18T11:58:00Z
Temporal Coverage End 2020-10-13T13:37:00Z