Evaluation of weather conditions in urban climate studies over different Madrid neighbourhoods: Influence of urban morphologies on the microclimate
Abstract
Urban microscale data is crucial in the evaluation of a wide range of engineering applications. However, it is observed an outdated climate data files and an undetailed boundary conditions within the urban environment, triggering variations between real and simulated energy data. This fact is proved through the analysis of two accessible weather files (EPW and CTE) and an updated experimental climate datafile (EXP10). Then, there are characterized the albedo (α), the emissivity (ε), the sky view factor (SVF) and the Mean Radiant Temperature (MRT) for three representative urban structures, considered notable variables for the outdoor energy assessment. The EXP10 data are warmer, drier and have intense and longer radiation than EPW and CTE files, showing an increase MRT values for all cases. Some MRT variations are also found between urban typologies. Dense-medium-rise areas with limited green-tree zones (DS_Usera) present a low-medium emissivity and SVF, being the MRT higher during the night. On the contrary, sprawl-high-rise areas with medium green-tree zones (OB_Cañorroto) have a high albedo SVF, graphing the lowest MRT during the night. Although tree crowed areas reduce the MRT along the day, they could increase these values during the night because of the possible low SVF in their canopy as it is shown in sprawl-low-rise areas with large green-tree zones (SH_Viso).