中文摘要：

针对鲜有资源型城市的地表热环境研究这一情况,该文基于Landsat8遥感数据,反演了太原市在2013—2015年间共3期的地表温度。提出一个考虑空间格局结构的城市热岛效应指数,在3期数据中,太原市区整体热岛效应指数分别为9.1%、9.8%和8.9%;同时,根据城市功能和路网结构将太原市区划分为6个分区,从分区级层面量化分析了地表热环境的时空分异特征规律,结果表明,太原市区地表温度整体呈现空间分散化特征,不同分区也呈现出不同的时空格局演变过程;最后,选取40个地表温度实测样本点验证反演精度,最大误差绝对值为1.1℃,最小误差绝对值为0.2℃,均方根误差为0.7℃。

英文摘要：

This paper studied the spatial-temporal pattern of land surface temperature（LST）in Taiyuan city by Landsat8 TIRS data acquired from 2013 to 2015.A new urban heat index（UHI）was proposed,and the UHI of Taiyuan urban district in three time phase was 9.1%,9.8%and 8.9%respectively.According to the urban function and road nets,the study area was divided into 6sub-districts,then the spatial-temporal pattern of LST of each sub-district was also researched.The research result indicated that the spatial pattern of LST in Taiyuan city was dispersed,and different sub districts had various spatialtemporal evolution patterns.At last,40on-site measuring points were used to evaluate the accuracy of LST retrieved from Landsat8.The maximal absolute error is 1.1℃,the minimal absolute error is 0.2℃,and the root-mean-square error is 0.7℃.