基于TM/ETM+的泉州市区人体舒适度研究

Research on Quanzhou Human Comfort Index Based on Landsat ETM+/TM

以福建省泉州市区为研究区,利用TM/ETM+影像,通过辐射传输方程法反演地表温度,运用温湿指数(THI)模型来获取研究区四季的人体舒适度指数空间分布图。结果表明,研究区春季普遍比较舒适;夏季闷热;秋季城镇用地上偏热;冬季人体大体感到舒适,水体、植被覆盖率高的区域感到偏冷。综合评价了研究区的气候环境概况,并对居民工作、生活需求及城市规划建设进行了有益的探讨。

The radiance transfer equation was selected to retrieve surface temperature by using the Landsat ETMq- /TM remote sensing images; and then chose the land surface temperature and average relative humidity as the impact factors, applied thermal humidity index （THI） model to research human comfort index of Quanzhou in four seasons~ obtained human comfort index index values and analysed the distribution of human comfort index of Quanzhou in different seasons. The results showed that Quanzhou was comfortable in spring. In summer the urban area was genk erally sultry and people felt uncomfortable and hot in some urban area when autumn. It was cold in winter because of the dense vegetation and wa- ters. In the urban planning of Quanzhou, we should increase the vegetation because it has a great comprehensive effect in maintaining the stabiliza- tion of urban environment.