Mixed layer depth dominates over upwelling in regulating  the seasonality of ecosystem functioning in the  Peruvian upwelling system

Xue, Tianfei; Frenger, Ivy; Prowe, A. E. Friederike; José, Yonss Saranga; Oschlies, Andreas

doi:https://doi.org/10.5194/bg-19-455-2022

Articles | Volume 19, issue 2

https://doi.org/10.5194/bg-19-455-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-19-455-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 2

Research article

|

28 Jan 2022

Research article |

| 28 Jan 2022

Mixed layer depth dominates over upwelling in regulating the seasonality of ecosystem functioning in the Peruvian upwelling system

Tianfei Xue, Ivy Frenger, A. E. Friederike Prowe, Yonss Saranga José, and Andreas Oschlies

Data sets

Supplementary data to Xue et al. (2021) "Mixed layer depth dominates over upwelling in regulating the seasonality of ecosystem functioning in the Peruvian Upwelling System" T. Xue, I. Frenger, A. E. F. Prowe, Y. S. José, and A. Oschlies https://hdl.handle.net/20.500.12085/5b787903-35f4-4e7d-bc6b-e318b98d7f6d

Model code and software

Coastal and Regional Ocean COmmunity model CROCO https://www.croco-ocean.org

Short summary

The Peruvian system supports 10 % of the world's fishing yield. In the Peruvian system, wind and earth’s rotation bring cold, nutrient-rich water to the surface and allow phytoplankton to grow. But observations show that it grows worse at high upwelling. Using a model, we find that high upwelling happens when air mixes the water the most. Then phytoplankton is diluted and grows slowly due to low light and cool upwelled water. This study helps to estimate how it might change in a warming climate.