Korean Journal of Agricultural Science (농업과학연구)

Institute of Agricultural Science, CNU (충남대학교 농업과학연구소)
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Assessment of the Urban Heat Island Effects with LANDSAT and KOMPSAT-2 Data in Cheongju

LANDSAT과 KOMPSAT-2 데이터를 이용한 청주지역 도시열섬효과의 평가

  • Na, Sang-Il (Department of Agriculture and Rural Engineering, Chungbuk National University) ;
  • Park, Jong-Hwa (Department of Agriculture and Rural Engineering, Chungbuk National University)
  • 나상일 (충북대학교 지역건설공학과) ;
  • 박종화 (충북대학교 지역건설공학과)
  • Received : 2012.02.03
  • Accepted : 2012.03.23
  • Published : 2012.03.31
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Abstract

Land surface temperature (LST) is an important factor in human health, thermal environment, heat balance, global change studies, and as control for climate change. The objective of this study was to assess the influence of Urban Heat Island (UHI) Effects on the LST and NDVI in Cheongju, Korea. The aim was to evaluate the effect of urban thermal environment for LST comparison of satellite-derived and in situ measured temperature. In this study, LANDSAT TM and KOMPSAT scene were used. The results indicated that the minimum LST is observed over dense forest as about $21{\sim}25^{\circ}C$ and maximum LST is observed over industrial area of about $28{\sim}32^{\circ}C$. The estimated LST showed that industrial area, bare soils and built-up areas exhibit higher surface temperatures, while forest, water bodies, agricultural croplands, and dense vegetations have lower surface temperatures during the summer daytime. Result corroborates the fact that LST over land use/land cover (LULC) types are greatly influenced by the amount of vegetation and water bodies present. The LST of industrial area and urban center is higher than that of suburban area, so it is clearly proved that there are obvious UHIE in Cheongju.

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References

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