Remote and local drivers of oxygen and nitrate variability in the shallow oxygen minimum zone off Mauritania in June 2014

Thomsen, Soeren; Karstensen, Johannes; Kiko, Rainer; Krahmann, Gerd; Dengler, Marcus; Engel, Anja

doi:https://doi.org/10.5194/bg-16-979-2019

Articles | Volume 16, issue 5

https://doi.org/10.5194/bg-16-979-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-16-979-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 16, issue 5

Research article

|

13 Mar 2019

Research article |

| 13 Mar 2019

Remote and local drivers of oxygen and nitrate variability in the shallow oxygen minimum zone off Mauritania in June 2014

Soeren Thomsen, Johannes Karstensen, Rainer Kiko, Gerd Krahmann, Marcus Dengler, and Anja Engel

Data sets

Physical oceanography during METEOR cruise M107 G. Krahmann https://doi.org/10.1594/PANGAEA.860480

Physical oceanography from glider mission IFM13_depl02 G. Krahmann, M. Dengler, S. Thomsen, and T. Kanzow https://doi.org/10.1594/PANGAEA.877388

Hydrochemistry of water samples during METEOR cruise M107 M. Dengler and S. Sommer https://doi.org/10.1594/PANGAEA.885109

Abundance of particles measured with an underwater vision profiler 5 (UVP5) during METEOR cruise M107 R. Kiko, H. Hauss, M. Picheral, and L. Stemmann https://doi.org/10.1594/PANGAEA.885759

ADCP current measurements (38 and 75 kHz) during METEOR cruise M107 M. Dengler https://doi.pangaea.de/10.1594/PANGAEA.897534

Model code and software

Matlab code to generated figures in Thomsen et al. 2019, "Remote and local drivers of oxygen and nitrate variability in the shallow oxygen minimum zone off Mauritania in June 2014" S. Thomsen https://doi.org/10.5281/zenodo.1689927

Short summary

Physical and biogeochemical observations from an autonomous underwater vehicle in combination with ship-based measurements are used to investigate remote and local drivers of the oxygen and nutrient variability off Mauritania. Beside the transport of oxygen and nutrients characteristics from remote areas towards Mauritania also local remineralization of organic material close to the seabed seems to be important for the distribution of oxygen and nutrients.