Oxygen utilization and downward carbon flux in an oxygen-depleted eddy in
the eastern tropical North Atlantic

Fiedler, Björn; Grundle, Damian S.; Schütte, Florian; Karstensen, Johannes; Löscher, Carolin R.; Hauss, Helena; Wagner, Hannes; Loginova, Alexandra; Kiko, Rainer; Silva, Péricles; Tanhua, Toste; Körtzinger, Arne

doi:https://doi.org/10.5194/bg-13-5633-2016

Articles | Volume 13, issue 19

https://doi.org/10.5194/bg-13-5633-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

Hydrography, biogeochemistry, and biology of "dead-zone eddies"...

https://doi.org/10.5194/bg-13-5633-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 13, issue 19

Research article

|

10 Oct 2016

Research article |

| 10 Oct 2016

Oxygen utilization and downward carbon flux in an oxygen-depleted eddy in the eastern tropical North Atlantic

Björn Fiedler, Damian S. Grundle, Florian Schütte, Johannes Karstensen, Carolin R. Löscher, Helena Hauss, Hannes Wagner, Alexandra Loginova, Rainer Kiko, Péricles Silva, Toste Tanhua, and Arne Körtzinger

Data sets

Oxygen Utilization and Downward Carbon Flux in an Oxygen-Depleted Eddy in the Eastern Tropical North Atlantic B. Fiedler, D. Grundle, F. Schütte, J. Karstensen, C. Löscher, H. Hauss, H. Wagner, A. Loginova, R. Kiko, P. Silva, and A. Körtzinger https://doi.org/10.1594/PANGAEA.865177

Short summary

Oxygen-depleted mesoscale features in the open eastern tropical North Atlantic, which are formed in the Mauritanian upwelling region, were discovered recently. This study examines biogeochemical structure and magnitudes of related processes within these isolated water masses. We found very low oxygen concentrations and strongly enhanced acidity at near-surface depth. Oxygen utilization and downward carbon export were found to exceed known values for this ocean region.