Articles | Volume 25, issue 21
https://doi.org/10.5194/acp-25-14387-2025
https://doi.org/10.5194/acp-25-14387-2025
Research article
 | 
03 Nov 2025
Research article |  | 03 Nov 2025

Building-resolving simulations of anthropogenic and biospheric CO2 in the city of Zurich with GRAMM/GRAL

Dominik Brunner, Ivo Suter, Leonie Bernet, Lionel Constantin, Stuart K. Grange, Pascal Rubli, Junwei Li, Jia Chen, Alessandro Bigi, and Lukas Emmenegger

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Short summary
To support the city of Zurich in tracking its path to net-zero greenhouse gas emissions planned to be reached by 2040, a CO2 emission monitoring system was established. The system combines a dense network of CO2 sensors with a high-resolution atmospheric transport model GRAMM/GRAL. This study presents the setup of the model together with its numerous inputs and evaluates its performance in comparison with observations from the CO2 sensor network.
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