利用遥感影像对南昌市热岛效应的评价研究

Evaluation of Heat Island Effect in Nanchang with Remote Sensing Images

通过对2010年、2015年和2020年Landsat遥感影像进行分析,利用支持向量机算法进行地表覆盖监督分类,并结合地表覆盖分类图、地表温度反演图以及城市规划;再利用单通道算法对Landsat影像数据进行地表温度反演,探究两者之间的联系,分析城市建成区变化与热岛效应区域的关系。本文以南昌市为例,对该城市建成区变化趋势以及与热岛效应间的关联性以及影响机理进行分析评价。

Based on the analysis of Landsat remote sensing images in 2010,2015 and 2020,the land cover supervision and classification is carried out by using support vector machine algorithm.Combining with land cover classification map,land surface temperature inversion map and urban planning,the single-channel algorithm is used to invert land surface temperature of Landsat image data,to explore the relationship between the temperature and the image,and the relationship between urban built-up area change and heat island effect area is also analyzed.Taking Nanchang city as an example,the changing of urban built-up area and its correlation with heat island effect as well as the influencing mechanism are explored.