대구의 토지이용도 유형에 따른 여름철 도시열섬포텐셜 추정연구

DOI QR코드

DOI QR Code

안지숙;김해동;김상우
Ahn, Ji-Suk;Kim, Hae-Dong;Kim, Sang-Woo

  • 발행 : 2007.01.31

초록

This study aims to estimate a urban heat island potential distribution based on the land-use types using Landsat TM(1100 LST August 2004) and AWS data in Daegu. The heat island potential is defined as a difference between surface temperature and air-temperature at each place. The study area was selected as about $900km^2$ square including Daegu metropolitan area. Land-use data obtained by dividing all of Daegu metropolitan area in- to 1-km-square three types of maps were prepared in the 1960s, 1970s and 2000s respectively. Land-use types were classified into 5 categories. Forest and farm lands have been reduced at a wide range during 40 years. Most of those changed into urban area. The heat island potential distribution presented a striking contrasts according to land-use types. For example, the heat island potential of urban area was higher than $10^{\circ}C$ in comparison to those of water or paddy rice areas.

키워드

Heat island potential;Landsat TM;Land-use

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