Cool Island Intensity in a Large Urban Green in Downtown Daegu: Seasonal Variation and Relationship to Atmospheric Condition

대구 도심에 위치한 대규모 녹지공간의 냉섬 강도: 계절변화와 기상조건에의 관련성

  • Published : 2010.01.31


Cool island intensity urban green space was investigated based in Dalsung Park, that is one of the largest parks in Daegu. Cool island intensity(CII), which is defined as the temperature difference between the green space and its surrounding built-up areas, shows time variations. A through-year measurement(2008-2009) of ground level air temperature revealed seasonal variation and relationship to the atmospheric condition of CII. The temperature variation in the park and the reference downtown Daegu was as same order as CII. The noontime CII is larger in summer than that in winter due to the leaf fall of the park trees. On the other hand, seasonal variation of nighttime CII is not so clear. The nighttime CII was larger under the stable atmosphere.


Cool island intensity;Green space;Remote sensing;Stable atmosphere


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