Analysis of temporal-spatial variation of heat island effect in Pearl River Delta using MODIS images and impermeable surface area

doi:10.6046/gtzyyg.2017.04.21

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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.

Keywords geological survey with remote sensing method siderite-hematite mineralization belt West Kunlun metallogenic belt Heiqia Pass

TP79

Issue Date: 04 December 2017

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	YANG Jinzhong
	CHEN Wei
	WANG Hui

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YANG Jinzhong,CHEN Wei,WANG Hui. Analysis of temporal-spatial variation of heat island effect in Pearl River Delta using MODIS images and impermeable surface area[J]. REMOTE SENSING FOR LAND & RESOURCES, 2017, 29(4): 140-146.

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https://www.gtzyyg.com/EN/10.6046/gtzyyg.2017.04.21 OR https://www.gtzyyg.com/EN/Y2017/V29/I4/140

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