Analysis of temporal-spatial variation of heat island effect in Pearl River Delta using MODIS images and impermeable surface area
HE Liqin1, YANG Peng1, JING Xin1, YAN Lei1, SU Linlin1,2
1. Beijing Key Lab of Spatial Information Integration and 3S Application,Peking University, Beijing 100087, China; 2. Information Engineering College, Capital Normal University, Beijing 100037, China
Abstract：The Pearl River Delta urban group is a region with rapid economic development; nevertheless, with the economic development, the heat island effect becomes increasingly obvious. Contrast with traditional point surveillance, the thermal infrared remote sensing method can make us understand the spatial distribution of urban heat island more intuitively. In this paper, the authors retrieved the land surface temperature(LST)of the four seasons of the Pearl River Delta region using the split window algorithm based on MODIS images, and divided the urban core and suburban region based on impermeable surface area(ISA), and finally obtained the surface urban heat island intensity. The results show that the Pearl River Delta region has a serious heat island phenomenon, with the most severe season being summer and the weakest season being winter. There is a tendency that the connection of cities has led to the formation of large urban heat island, especially in the two most serious cities, Foshan and Guangzhou. The heat island intensity is negatively correlated with NDVI value and positively correlated with the degree of the city’s economic development. The research results would provide some ecological instructions for urban development planning of the Pearl River Delta region.
贺丽琴, 杨鹏, 景欣, 晏磊, 苏琳琳. 基于MODIS影像及不透水面积的珠江三角洲热岛效应时空分析[J]. 国土资源遥感, 2017, 29(4): 140-146.
HE Liqin, YANG Peng, JING Xin, YAN Lei, SU Linlin. Analysis of temporal-spatial variation of heat island effect in Pearl River Delta using MODIS images and impermeable surface area. REMOTE SENSING FOR LAND & RESOURCES, 2017, 29(4): 140-146.
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2017, Vol. 29 
