한국의 도시화에 의한 극한기온의 변화

The Impacts of Urbanization on Changes of Extreme Events of Air Temperature in South Korea

  • 투고 : 2011.05.19
  • 심사 : 2011.06.27
  • 발행 : 2011.06.30

초록

이 연구에서는 극한기온 지수의 변화 경향을 분석하여 도시화 효과가 극한기온의 변화에 미치는 영향을 규명하고자 하였다. 한국에서 60개 기상관측지점을 대상으로 극한기온과 관련된 16개의 지수를 분석하였다. 여름철 관련 극한기온 지수값은 대부분 증가하였고, 겨울철 관련 극한기온 지수값은 감소하였다. 여름철 지수 중 변동 임계치를 갖는 지수가 열대야와 같은 고정 임계치를 갖는 경우보다 증가 경향이 더 뚜렷하였다. 겨울철과 관련된 극한기온 지수값의 감소 경향이 여름철과 관련된 극한기온 지수의 증가 경향보다 뚜렷하였다. 이는 도시의 기온이 여름철보다 겨울철에 더 상승하는 것과 비슷한 결과이다. 일최고기온과 관련된 지수의 증가 경향보다 일최저기온과 관련된 지수의 감소 경향이 뚜렷하다. 이런 결과도 도시에서 최고기온보다 최저기온의 상승 경향이 더 뚜렷한 것과 비슷한 경향이다.

This study aimed to analyze the changes of extreme temperature indices in order to investigate impacts of urbanization on changes of extreme temperature. It was analyzed 16 indices related to extreme temperature indices to 60 weather stations in South Korea. Extreme temperature indices-related summer mostly increased, and its related to winter decreased. Percentile-based indices were clearly increased more than fixed-based indices as a tropical night. Decreasing trend of extreme temperature indices related to winter had more clear than increasing trend of extreme temperature indices related to summer. It was similar to trend that urban temperature was more clearly increased in winter than summer. Decreasing trend of indices-related daily minimum temperature had more clear than increasing trend of indices-related daily maximum temperature. Also, it was similar to increasing trend of minimum temperature had more clear than maximum temperature.

키워드

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