Journal
GISCIENCE & REMOTE SENSING
Volume 53, Issue 1, Pages 63-84Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/15481603.2015.1095471
Keywords
urban expansion; urban impervious surface; mean annual surface temperature; Beijing
Categories
Funding
- National Natural Science Foundation of China [41371416, 41371358]
- Science and Technology Plan of Yunnan Province, China [2010AD004]
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This study examined changes in urban expansion and land surface temperature in Beijing between 1990 and 2014 using multitemporal TM, ETM+, and OLI images, and evaluated the relationship between percent impervious surface area (%ISA) and relative mean annual surface temperature (RMAST). From 1990 to 2001, both internal land transformation and outward expansion were observed. In the central urban area, the high-density urban areas decreased by almost 7km(2), while the moderate- and high-density urban land areas increased by 250 and 90km(2), respectively, outside of the third ring road. From 2001 to 2014, high-density urban areas between the fifth and sixth ring roads experienced the greatest increase by more than 210km(2), and RMAST generally increased with %ISA. During 1990-2001 and 2001-2014, RMAST increased by more than 1.5K between the south third and fifth ring roads, and %ISA increased by more than 50% outside of the fifth ring road. These trends in urban expansion and RMAST over the last two decades in Beijing can provide useful information for urban planning decisions.
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