一个日最大热岛强度诊断方程的检验

发布时间：2018-09-08 14:50

【摘要】：应用南京城市气温观测数据对一个2017年最新提出的日最大热岛强度诊断方程进行了检验,这是首次用欧洲之外的城市气温实测数据对该方程进行检验。南京气温观测实验基于城市局地气候分区(Local Climate Zone,LCZ)方法进行,该方法是一种用于城市气温研究的客观标准的局地热气候分类方法。用于本次研究的气温观测数据来源于南京城区7个不同类型的LCZ地块,从2016年7~11月期间挑选出29 d天气特征为晴朗、微风、少云的典型气象日。对比分析了各LCZ地块的日最大热岛强度观测值和基于该诊断方程的计算值,结果表明:该方程的整体精度(r~2=0.46,RMSE=1.08 K,MEAE=0.76 K)接近其在欧洲西北部14个城市的诊断表现(r~2=0.65,RMSE=0.91 K,MEAE=0.58 K),初步表明该方程可用于诊断我国城市的日最大热岛强度。
[Abstract]:A new diagnostic equation of maximum daily heat island strength proposed in 2017 is tested by using Nanjing city temperature observation data. This is the first time that the equation has been tested with the measured data of urban air temperature outside Europe. The temperature observation experiment in Nanjing is based on the urban local climate zoning (Local Climate Zone,LCZ) method, which is an objective standard local geothermal climate classification method for urban temperature research. The temperature observation data for this study come from seven different types of LCZ plots in Nanjing urban area. From July to November 2016, the typical weather days with 29 days of clear weather, breeze and less clouds were selected. The observed values of maximum daily heat island strength of each LCZ block and the calculated values based on the diagnostic equation are compared and analyzed. The results show that the global accuracy of the equation (RMSE 1.08 K / MEAEN 0.76K) is close to its diagnostic performance in 14 cities in northwestern Europe (RMSE 0.91 Ke MEAEN 0.58 K),). The results show that the equation can be used to diagnose the maximum daily heat island intensity of Chinese cities.
【作者单位】：南京工业大学绿色建筑与生态城市实验室;
【基金】：国家自然科学基金青年基金项目“多尺度城市热气候及其对建筑能耗影响的协同仿真方法研究”(51408303) 江苏省自然科学基金面上项目“生态型铺装系统对城市热湿环境的调节效应及机理研究”(BK20161547)
【分类号】：X16

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