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A Study on the Effect of Cold Water Mass on Observed Air Temperature in Busan

부산지역 기온에 미치는 냉수대의 영향에 대한 연구

  • Park, Myung-Hee (Fisheries Resource and Environment Department, National Fisheries Research & Development Institute) ;
  • Lee, Joon-Soo (Fisheries Resource and Environment Department, National Fisheries Research & Development Institute) ;
  • Ahn, Ji-Suk (Fisheries Resource and Environment Department, National Fisheries Research & Development Institute) ;
  • Suh, Young-Sang (Fisheries Resource and Environment Department, National Fisheries Research & Development Institute) ;
  • Han, In-Seong (Fisheries Resource and Environment Department, National Fisheries Research & Development Institute) ;
  • Kim, Hae-Dong (Department of Global Environment, Keimyung University) ;
  • Bae, Hun-Kyun (Department of Global Environment, Keimyung University)
  • 박명희 (국립수산과학원 수산해양종합정보과) ;
  • 이준수 (국립수산과학원 수산해양종합정보과) ;
  • 안지숙 (국립수산과학원 수산해양종합정보과) ;
  • 서영상 (국립수산과학원 수산해양종합정보과) ;
  • 한인성 (국립수산과학원 수산해양종합정보과) ;
  • 김해동 (계명대학교 지구환경학과) ;
  • 배헌균 (계명대학교 지구환경학과)
  • Received : 2013.11.04
  • Accepted : 2014.09.15
  • Published : 2014.09.30

Abstract

The effects of the cold air generated from large cold water mass at the coastal area on observed air temperature in Busan were investigated using AWS(Automatic Weather Station) data at the Busan area operated by Korea Meterological Administration and SST(Sea Surface Temperature) data at the Gijang and Busan area operated by Korean National Fisheries Research Development Institute. First, the temperature difference between the coastal area and the city area was about $1^{\circ}C$ during cold water mass day while it was about $0.5^{\circ}C$ if cold water mass was not appeared. Second, for day time, the temperature at the coastal area was about $1^{\circ}C$ lower than that at the city area during cold water mass day, but the difference was only about $0.4^{\circ}C$ without cold water mass. On the other hand, for night time, the temperature at the coastal area was about $1.2^{\circ}C$ lower than that at the city area during cold water mass day and the difference was about $0.9^{\circ}C$ without cold water mass. As a result, temperature differences at night time were higher than those at day time whether or not cold water mass appeared. The reason for higher temperature at night time might be the urban heat island phenomenon.

본 연구에서는 부산(Busan)에 설치된 자동기상관측망(AWS)과 국립수산과학원에서 관측하는 부산(Busan)과 기장(Gijang)지점의 해수면온도(SST)자료를 활용하여 부산(Busan)지역의 연안에서 발생하는 대규모 냉수대에 의해 형성된 차가워진 냉기가 도시기온에 미치는 영향을 살펴보았다. 첫째, 냉수대가 발생한 날(cold water)은 연안지역과 도심지역의 기온차가 약 $1^{\circ}C$이상 나타났으며, 냉수대가 발생하지 않은 날(non cold water)은 연안지역과 도심지역의 기온차가 약 $0.5^{\circ}C$로 냉수대가 발생한 날(cold water)보다 낮은 기온차를 보였다. 둘째, 주간의 경우 냉수대가 발생한 날(cold water)은 연안지역이 도심에 비해 약 $1^{\circ}C$ 정도 낮았다. 반면 냉수대가 발생하지 않은 날(non cold water)은 연안지역과 도심의 기온차가 약 $0.4^{\circ}C$로 냉수대가 발생한 날(cold water)에 비해 낮은 분포 차를 보였다. 반면 야간의 경우는 냉수대가 발생한 날(cold water)의 연안지역이 도심에 비해 약 $1.2^{\circ}C$, 냉수대가 발생하지 않은 날(non cold water)은 연안지역이 도심에 비해 약 $0.9^{\circ}C$ 낮았다. 야간의 기온은 주간의 기온에 비해 냉수대 발생 유 무에 상관없이 높은 기온차를 보였다.

Keywords

References

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