This collection represents the ICOS Cities 2025-12 release of CO2 data collected by the mid-cost sensor network ACROPOLIS in Munich, Germany. The measurement campaign is described in the ICOS Cities deliverable report D3.3: Emmenegger, L., Grange, S., Aigner, P., Chen, J., Utard, H., Chariot, M., Briffoteaux, G., 2025. 24-month quality-controlled CO2 measurements from mid-cost sensors at roof level for Paris, Munich and Zurich. ICOS ERIC - Carbon Portal. https://doi.org/10.18160/EEP1-TEE1.

Related work:
* Aigner, P., Chen, J., Böhm, F., Chariot, M., Emmenegger, L., Frölich, L., Grange, S., Kühbacher, D., Kürzinger, K., Laurent, O., Makowski, M., Rubli, P., Schmitt, A., and Wenzel, A.: ACROPOLIS: Munich Urban CO2 Sensor Network, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2025-4157, 2025. * Aigner P., Kühbacher D., Wenzel A., Schmitt A., Böhm F., Makowski M., Kürzinger K., Laurent O., Rubli P., Grange S., Emmenegger L., and Chen J.: Advancing Urban Greenhouse Gas Monitoring: Development and Evaluation of a High-Density CO2 Sensor Network in Munich. ICOS Science Conference 2024, Versailles, France, 10.-12. Sept, https://www.icos-cp.eu/news-and-events/science-conference/icos2024sc/all-abstracts