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http://dx.doi.org/10.11108/kagis.2016.19.4.076

Analysis on the Effects of Land Cover Types and Topographic Features on Heat Wave Days  

PARK, Kyung-Hun (Dept. of Environmental Engineering, Changwon National University)
SONG, Bong-Geun (Disaster Scientific Investigation Division, National Disaster of Management Institute)
PARK, Jae-Eun (Disaster Scientific Investigation Division, National Disaster of Management Institute)
Publication Information
Journal of the Korean Association of Geographic Information Studies / v.19, no.4, 2016 , pp. 76-91 More about this Journal
Abstract
The purpose of this study is to analyze the effects of spatial characteristics, such as land cover and topography, on heat wave days from the city of Milyang, which has recently drawn attention for its heat wave problems. The number of heat wave days was calculated utilizing RCP-based South Korea climate data from 2000 to 2010. Land cover types were reclassified into urban area, agricultural area, forest area, water, and grassland using 2000, 2005, and 2010 land cover data constructed by the Ministry of Environment. Topographical features were analyzed by topographic position index (TPI) using a digital elevation model (DEM) with 30 m spatial resolution. The results show that the number of heat wave days was 31.4 days in 2000, which was the highest, followed by 26.9 days in 2008, 24.2 days in 2001, and 24.0 days in 2010. The heat wave distribution was relatively higher in agricultural areas, valleys, and rural areas. The topography of Milyang contains more mountainous slope (51.6%) than flat (19.7%), while large-scale valleys (12.2%) are distributed across some of the western region. Correlation analysis between heat wave and spatial characteristics showed that the correlation between forest area land cover and number of heat wave days was negative (-0.109), indicating that heat wave can be mitigated. Topographically, flat areas and heat wave showed a positive correlation (0.305). These results provide important insights for urban planning and environmental management for understanding the impact of land development and topographic change on heat wave.
Keywords
Heat Wave; Climate Change; Urban Heat Island; GIS; TPI;
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Times Cited By KSCI : 7  (Citation Analysis)
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