Articles | Volume 18, issue 1
https://doi.org/10.5194/gmd-18-141-2025
https://doi.org/10.5194/gmd-18-141-2025
Development and technical paper
 | 
14 Jan 2025
Development and technical paper |  | 14 Jan 2025

Simulation of the heat mitigation potential of unsealing measures in cities by parameterizing grass grid pavers for urban microclimate modelling with ENVI-met (V5)

Nils Eingrüber, Alina Domm, Wolfgang Korres, and Karl Schneider

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Cited articles

Anders, J., Schubert, S., Sauter, T., Tunn, S., Schneider, C., and Salim, M.: Modelling the impact of an urban development project on microclimate and outdoor thermal comfort in a mid-latitude city, Energ. Buildings, 296, 113324, https://doi.org/10.1016/j.enbuild.2023.113324, 2023. 
Balany, F., Ng, A. W. M., Muttil, N., Muthukumaran, S., and Wong, M. S.: Green Infrastructure as an Urban Heat Island Mitigation Strategy – A Review, Water, 12, 3577, https://doi.org/10.3390/w12123577, 2020. 
Battista, G., de Lieto Vollaro, E., Evangelisti, L., and de Lieto Vollaro, R.: Urban Overheating Mitigation Strategies Opportunities: A Case Study of a Square in Rome (Italy), Sustainability, 14, 16939, https://doi.org/10.3390/su142416939, 2022. 
Battisti, A., Laureti, F., Zinzi, M., and Volpicelli, G.: Climate Mitigation and Adaptation Strategies for Roofs and Pavements: A Case Study at Sapienza University Campus, Sustainability, 10, 3788, https://doi.org/10.3390/su10103788, 2018. 
Bean, E. Z., Hunt, W. F., and Bidelspach, D. A.: Evaluation of Four Permeable Pavement Sites in Eastern North Carolina for Runoff Reduction and Water Quality Impacts, J. Irrig. Drain. E., 133, 583–592, https://doi.org/10.1061/(ASCE)0733-9437(2007)133:6(583), 2007. 
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Short summary
Climate change adaptation measures like unsealings can reduce urban heat stress. As grass grid pavers have never been parameterized for microclimate model simulations with ENVI-met, a new parameterization was developed based on field measurements. To analyse the cooling potential, scenario analyses were performed for a densely developed area in Cologne. Statistically significant average cooling effects of up to −11.1 K were found for surface temperature and up to −2.9 K for 1 m air temperature.
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