Up-to-date climate scenarios warn that the frequency and intensity of heat waves are likely to increase in Europe during the twenty first century. In these circumstances, urban climate is progressively taken into account in urban planning processes, for instance using terrain classifications. The developed methodology involves the Local Climate Zone scheme (LCZ), which has been applied to Nancy, France. Mobile measurements campaigns have been performed using an instrumented vehicle in order to record daily air temperature dynamics, with a focus on the daily cooling period. So as to quantify LCZ cooling before and after sunset over several days, a climatic indicator called Normalized Cooling Rate (NCR) has been used. This study presents statistical regressions that have been performed between normalized cooling rate values calculated from field measurements and urban indicators. Results indicate that normalized cooling rates and most of the studied urban features are correlated. Regression model using sky view factor and distance to the city center seems enough accurate to estimate nocturnal cooling at the district scale.

最新的气候情景警告说，在20世纪欧洲，热浪的频率和强度可能会增加。在这种情况下，在城市规划过程中会逐渐考虑城市气候，例如使用地形分类。所开发的方法涉及当地气候区计划（LCZ），该计划已应用于法国南锡。为了记录每天的空气温度动态，重点是每天的冷却时间，使用仪表车进行了移动测量。为了量化几天之前和之后的LCZ冷却，已使用一种称为归一化冷却速率（NCR）的气候指标。这项研究提出了根据实地测量和城市指标计算得出的标准化降温速率值之间的统计回归。结果表明，标准化降温速率与大多数研究的城市特征相关。使用天空因子和距市中心的距离的回归模型似乎足够准确，可以估算区域范围内的夜间降温。