基于Landsat的泉州市地表温度反演与分析研究

Research on inversion and analysis of surface temperature in Quanzhou city based on Landsat

随着对城市热岛效应研究的不断深入,地表温度成为研究热岛效应的基础数据来源之一,如何快速有效地监测地表温度变得越来越重要.本文以泉州市中心城区为例,选取了2010年和2017年两个不同时相的Landsat影像进行地表温度反演并加以对比分析.研究结果显示:泉州市中心城区的热岛区面积正在以年均增加率为0.021%的速度逐年扩大,其热岛区主要分布于城市建成区或裸地区,并且有对外扩展趋势.

With the development of urban heat island effect,surface temperature has become one of the basic data sources to study heat island effect.How to monitor surface temperature quickly and effectively becomes more and more important.This paper take Quanzhou city as an example,two Landsat images with different phases in 2010 and 2017 were selected for surface temperature inversion and compared with each other.The results show that the area of the heat island area in the central urban area of Quanzhou is expanding year by year at an average annual rate of 0.021%.The heat island area is mainly distributed in the urban built-up area or the bare area,and has the tendency of external expansion.