The fate of upwelled nitrate off Peru shaped by submesoscale filaments and fronts

Hauschildt, Jaard; Thomsen, Soeren; Echevin, Vincent; Oschlies, Andreas; José, Yonss Saranga; Krahmann, Gerd; Bristow, Laura A.; Lavik, Gaute

doi:https://doi.org/10.5194/bg-18-3605-2021

Articles | Volume 18, issue 12

https://doi.org/10.5194/bg-18-3605-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-18-3605-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 12

Research article

|

17 Jun 2021

Research article |

| 17 Jun 2021

The fate of upwelled nitrate off Peru shaped by submesoscale filaments and fronts

Jaard Hauschildt, Soeren Thomsen, Vincent Echevin, Andreas Oschlies, Yonss Saranga José, Gerd Krahmann, Laura A. Bristow, and Gaute Lavik

Supplement

https://doi.org/10.5194/bg-18-3605-2021-supplement

Data sets

Physical oceanography (CTD) during METEOR cruise M136 G. Krahmann https://doi.org/10.1594/PANGAEA.892564

Underway CTD data collected during METEOR cruise M136 M. Dengler, S. Thomsen, and G. Krahmann https://doi.org/10.1594/PANGAEA.904288

ADCP current measurements (38 and 75 kHz) during METEOR cruise M136 M. Dengler, R. Czeschel, J. Lüdke, and G. Krahmann https://doi.org/10.1594/PANGAEA.901425

XCROCO 0.2 J. Hauschildt https://doi.org/10.5281/zenodo.4899097

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Short summary

In this paper we quantify the subduction of upwelled nitrate due to physical processes on the order of several kilometers in the coastal upwelling off Peru and its effect on primary production. We also compare the prepresentation of these processes in a high-resolution simulation (~2.5 km) with a more coarsely resolved simulation (~12 km). To do this, we combine high-resolution shipboard observations of physical and biogeochemical parameters with a complex biogeochemical model configuration.