基于landsat8的新沂市地表温度反演研究

Land Surface Temperature Retrieval Based on Landsat8 Data in Xinyi City

文中基于landsat8遥感影像,以新沂市为研究对象,使用辐射传输方程法对研究区进行地表温度反演,分析了新沂市热岛效应的空间分布特征及其与植被覆盖度、土地利用分类、水体等影响因子之间的关系,结果表明,辐射传输方程法是有效的,不同土地利用类型对热岛效应影响不同,地表温度与植被覆盖度之间存在明显的负线性相关,水体对降低地表温度效果显著。

Based on the remote sensing landsat8 image, taking Xinyi City as an example, The land surface temperature （LST） has been retrieved by using the way of Radiative Transfer Equation. Characteristics of spatial distribution of heat island effect in Xinyi, as well as its relationships with the impact factors including vegetation fraction, Land use classification and Water bodies are discussed in detail; The result shows that the degree of influence of heat island effect depends on different land use types, the land surface temperature has a significant negative linear correlation with vegetation fraction, and the water bodies are obvious to reduce land surface temperature.