Low confidence in multi-decadal trends of wind-driven upwelling across the Benguela Upwelling System

Bordbar, Mohammad Hadi; Mohrholz, Volker; Schmidt, Martin

doi:https://doi.org/10.5194/esd-14-1065-2023

Articles | Volume 14, issue 5

https://doi.org/10.5194/esd-14-1065-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/esd-14-1065-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 14, issue 5

Research article

|

16 Oct 2023

Research article |

| 16 Oct 2023

Low confidence in multi-decadal trends of wind-driven upwelling across the Benguela Upwelling System

Mohammad Hadi Bordbar, Volker Mohrholz, and Martin Schmidt

Supplement

https://doi.org/10.5194/esd-14-1065-2023-supplement

Data sets

ERA5 hourly data on pressure levels from 1979 to present H. Hersbach, B. Bell, P. Berrisford, G. Biavati, A. Hor\'{a}nyi, J. Mu\~{n}oz Sabater, J. Nicolas, C. Peubey, R. Radu, I. Rozum, D. Schepers, A. Simmons, C. Soci, D. Dee, and J. N. Th\'{e}paut https://cds.climate.copernicus.eu/

Remote sensing systems ASCAT C-2015 daily ocean vector winds on 0.25 deg grid L. Ricciardulli, F. J. and Wentz http://www.remss.com/missions/ascat

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Short summary

The Benguela Upwelling System hosts highly productive marine ecosystems, supporting the livelihood of the local inhabitants. Regional distribution of nutrients in this system is affected by upwelling, primarily wind-driven and related to the South Atlantic Anticyclone, which is believed to intensify in the future. We found that this system's southern and northern parts respond to the anticyclone changes differently. Due to climate variability, the uncertainty in the upwelling trend is high.