Development of air temperature distribution map using surface temperature of tree crown and analysis of cooling effect of urban green space

利用航空遥感技术获取包括热红外数据在内的地表信息，并从热红外数据中提取树冠表面温度。利用热环境数值模拟方法，将各树冠的辐射环境特征进行分类，提取出可用于分析的树冠。通过研究，提出了一种利用热红外图像生成城市化地区气温分布图的方法。此外，还利用获得的气温分布图，对城市热岛状况和热环境特征进行了探讨。

Airborne remote sensing was implemented to acquire land surface information including thermal infrared data, and then surface temperatures of tree crown were extracted from the thermal infrared data. The characteristics of radiant environment of each tree crown were classified into several categories using a numerical simulation on heat environment, and the tree crown which can be used for the analysis was extracted. Through the study, a method to generate air temperature distribution map from thermal infrared image taken for urbanized area was developed. Besides, the condition of urban heat island and the feature of heat environment were discussed using the air temperature distribution map acquired in this study.