不透水面
城市热岛
普通最小二乘法
环境科学
地理加权回归模型
空间异质性
城市化
自然地理学
中国
比例(比率)
空间生态学
地理
地图学
气象学
统计
生态学
数学
生物
考古
作者
Yang Liu-qing,Kunyong Yu,Jingwen Ai,Yanfen Liu,Wufa Yang,Jian Liu
出处
期刊:Remote Sensing
[MDPI AG]
日期:2022-03-04
卷期号:14 (5): 1266-1266
被引量:33
摘要
The urban heat island (UHI) phenomenon caused by rapid urbanization has become an important global ecological and environmental problem that cannot be ignored. In this study, the UHI effect was quantified using Landsat 8 image inversion land surface temperatures (LSTs). With the spatial scale of street units in Fuzhou City, China, using ordinary least squares (OLS) regression, geographically weighted regression (GWR) models, and multi-scale geographically weighted regression (MGWR), we explored the spatial heterogeneities of the influencing factors and LST. The results indicated that, compared with traditional OLS models, GWR improved the model fit by considering spatial heterogeneity, whereas MGWR outperformed OLS and GWR in terms of goodness of fit by considering the effects of different bandwidths on LST. Building density (BD), normalized difference impervious surface index (NDISI), and the sky view factor (SVF) were important influences on elevated LST, while building height (BH), forest land percentage (Forest_per), and waterbody percentage (Water_per) were negatively correlated with LST. In addition, built-up percentage (Built_per) and population density (Pop_Den) showed significant spatial non-stationary characteristics. These findings suggest the need to consider spatial heterogeneity in analyses of impact factors. This study can be used to provide guidance on mitigation strategies for UHIs in different regions.
科研通智能强力驱动
Strongly Powered by AbleSci AI