Biogeosciences
Biogeosciences
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Articles | Volume 22, issue 2
Articles | Volume 22, issue 2
https://doi.org/10.5194/bg-22-555-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-22-555-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 22, issue 2
Research article
 | 
30 Jan 2025
Research article |  | 30 Jan 2025

Seasonal and interannual variability in CO2 fluxes in southern Africa seen by GOSAT

Eva-Marie Metz, Sanam Noreen Vardag, Sourish Basu, Martin Jung, and André Butz

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Short summary
We estimate CO2 fluxes in semiarid southern Africa from 2009 to 2018 based on satellite CO2 measurements and atmospheric inverse modeling. By selecting process-based vegetation models, which agree with the satellite CO2 fluxes, we find that soil respiration mainly drives the seasonality, whereas photosynthesis substantially influences the interannual variability. Our study emphasizes the need for better representation of the response of semiarid ecosystems to soil rewetting in vegetation models.
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