As the urbanization progresses, the green space in the city decreases and the heat absorption surface such as concrete and asphalt pavement increases, and local urban warming occurs. As urban warming becomes stronger, the temperature difference with the suburban area appears, which is called Urban Heat Island (UHI) phenomenon. UHI is a phenomenon occurring in cities all over the world, and thus there is a possibility of causing global scale climate change. Therefore, there is an increasing need for studies on the difference in UHI intensity and long-term trends according to macroscopic characteristics related to urbanization In this study, for Asian mega cities, we conducted a correlation analysis between urban area size and UHI intensity for each Asian mega city and season during 1992-2012, and time series analysis was also performed to check the increase trends of UHI intensities. The differences according to the characteristics were compared and analyzed. Our results suggested that There is a difference in the correlation between urban area size and UHI intensity according to the season and most cities showed a significant correlation in summer, with the least correlation in winter. According to characteristics such as urban area size and economic situation of each city, there was a difference in correlation between urban area size and UHI intensity, and it seems that the influence of topography and development direction also exist. UHI intensity across the city is increased by a combination of urban area size, economic situation and population number. This is the macroscale study that analyzed the effects of urban area size and impact on UHI intensity change and based on this, future studies are required.
|Publication status||Published - 2020|
|Event||40th Asian Conference on Remote Sensing: Progress of Remote Sensing Technology for Smart Future, ACRS 2019 - Daejeon, Korea, Republic of|
Duration: 2019 Oct 14 → 2019 Oct 18
|Conference||40th Asian Conference on Remote Sensing: Progress of Remote Sensing Technology for Smart Future, ACRS 2019|
|Country/Territory||Korea, Republic of|
|Period||19/10/14 → 19/10/18|
Bibliographical noteFunding Information:
This study is carried out with the support of Korea Environment Industry & Technology Institute(KEITI) through the project “Development of Ecosystem Restoration Model, Evaluation System and Post Management Technology for Each Type of Damaged Area”, funded by Ministry of Environment (MOE) (No. 2018000210006).
© 2020 40th Asian Conference on Remote Sensing, ACRS 2019: "Progress of Remote Sensing Technology for Smart Future". All rights reserved.
- Climate Change
- Global Warming
ASJC Scopus subject areas
- Information Systems