High-resolution physical–biogeochemical structure of a filament and an eddy of upwelled water off northwest Africa

von Appen, Wilken-Jon; Strass, Volker H.; Bracher, Astrid; Xi, Hongyan; Hörstmann, Cora; Iversen, Morten H.; Waite, Anya M.

doi:https://doi.org/10.5194/os-16-253-2020

Articles | Volume 16, issue 1

https://doi.org/10.5194/os-16-253-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/os-16-253-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 16, issue 1

Research article

|

28 Feb 2020

Research article |

| 28 Feb 2020

High-resolution physical–biogeochemical structure of a filament and an eddy of upwelled water off northwest Africa

Wilken-Jon von Appen, Volker H. Strass, Astrid Bracher, Hongyan Xi, Cora Hörstmann, Morten H. Iversen, and Anya M. Waite

Supplement

https://doi.org/10.5194/os-16-253-2020-supplement

Data sets

Physical oceanography during POLARSTERN cruise PS113 V. H. Strass https://doi.org/10.1594/PANGAEA.898716

Continuous thermosalinograph oceanography along POLARSTERN cruise track PS113 (ANT-XXXIII/4) V. H. Strass and Rohardt G. https://doi.org/10.1594/PANGAEA.895581

Raw data from Triaxus topAWI tows during POLARSTERN cruise PS113 W.-J. von Appen, V. H. Strass, H. Becker, A. Bracher, and S. Spahic https://doi.org/10.1594/PANGAEA.904420

Raw data of continuous VM-ADCP (vessel-mounted Acoustic Doppler Current Profiler) profile during POLARSTERN cruise PS113 H. Witte https://doi.org/10.1594/PANGAEA.897092

NOAA Physical Sciences Division, NOAA OI SST V2 High Resolution Dataset NOAA https://www.esrl.noaa.gov/psd/data/gridded/data.noaa.oisst.v2.highres.html

Short summary

Nutrient-rich water is moved to the surface near continental margins. Then it forms rich but difficult to observe spatial structures of physical and biological/biogeochemical properties. Here we present a high resolution (2.5 km) section through such features obtained in May 2018 with a vehicle towed behind a ship. Considering that such interactions of physics and biology are common in the ocean, they likely strongly influence the productivity of such systems and their role in CO₂ uptake.