대한지리학회지 (Journal of the Korean Geographical Society)

대한지리학회 (The Korean Geographical Society)
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지난 100년 동안 서울시에 발생한 강한 열파 패턴과 노인사망자에 미치는 영향

Patterns of Strong Heat Waves within the Seoul Metropolitan Area and Its Impacts on Elderly Mortality Based on the Last 100 Year Observations

  • 최광용 (강원대학교 환경과학과)
  • Choi, Gwang-Yong (Department of Environmental Science, Kangwon National University)
  • 투고 : 2010.10.06
  • 심사 : 2010.10.23
  • 발행 : 2010.10.31
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초록

이 연구에서는 지난 100년(1908~2007) 동안 서울에서 발생한 열파의 변화추세와 극심한 열파 발생 시 도심내 열환경과 사망자의 시공간적 패턴을 분석하고자 한다. 최근의 온난화 경향에도 불구하고 여름철 강수량증가에 의해 서울시의 열파 발생빈도 및 강도에는 뚜렷한 변화경향이 관찰되지 않는다. 전례 없이 강한 열파가 발생한 1994년 7월의 자동기상관측 및 Landsat TM 위성 영상 추출 열분포 자료들은 도심내 형성되는 고온의 열환경에 의해 노인 질병 사망자 수가 더욱 증가하였음을 잘 보여준다. 이 연구는 차후 도심 정비시 열환경 분포를 고려해야 하는 생리기후학적 근거를 제시하고 있다.

In this study, trends of heat waves in the populous Seoul metropolitan area over the last 100 years (1908-2007) and spatio-temporal patterns of extreme heat waves and excessive human mortality are examined. In spite of recent global warming, there is no observable increasing or decreasing pattern in the frequency and intensity of heat waves in Seoul due to increases of summer precipitation. Among numerous episodes over the last 100 years in Seoul, 1994 summer is recognized as the unprecedented, most extreme hot episode with long-lasting, intense heat waves Meteorological data observed at the Automatic Weather Stations (AWS) and land surface temperature data derived from Landsat TM satellite imagery in July 1994 reveal that extreme heat waves cause more abnormal increase of elderly mortality in the urbanized areas than in the surroundings covered with more vegetation. This study provides bioclimatological evidences of why urban thermal environments should be seriously considered in the future urban revitalization planning.

키워드

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