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作者

Junyan Yang;Xinyu Hu;Haiyi Feng;Simon Marvin

来源

URBAN FORESTRY & URBAN GREENING,Vol.66,Issue1,Article 127384

语言

英文

关键字

Applicability;ENVI-met;Simulation;Temperature;Urban parks

作者单位

School of Architecture, Southeast University, Nanjing 210096, China;College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China;Urban Institute, Sheffield University, ICOSS, 219 Portobello, Sheffield S1 4DP, UK;School of Architecture, Southeast University, Nanjing 210096, China;College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China;Urban Institute, Sheffield University, ICOSS, 219 Portobello, Sheffield S1 4DP, UK

摘要

ENVI-met, the most popular numerical simulation software in microclimate research, performs well in researching and modeling of human settlements. However, its applicability to certain environments, especially central urban areas, has been questioned by scholars and practitioners. In particular, ENVI-met simulations of the internal thermal environments of urban green spaces lack verification. To address this research gap and provide theoretical support for planning and design, we selected Shanghai’s Yanzhong Square Park as a case study for an ENVI-met simulation. Comparing the field-measured values to the simulated values, we found that ENVI-met struggles to reproduce the actual temperature distribution in the park accurately for three main reasons. First, the fitting index of the simulated and measured values is poor. Second, the maximum temperature difference between the areas of the park is much lower in the simulation than in the measured values. Finally, ENVI-met overestimates the cooling effect of grass. Therefore, it is difficult to simulate the thermal environment of a complex urban green space accurately using ENVI-met and the specific factors causing this inaccuracy need further verification. Although the limitations of the software are acknowledged during use, ENVI-met is still a helpful tool.