Journal of the Korean Society of Marine Environment & Safety (해양환경안전학회지)

The Korean Society of Marine Environment and safety (해양환경안전학회)
권호 표지
DOI QR코드

DOI QR Code

Sea Surface Temperature Time Lag Due to the Extreme Heat Wave of August 2016

2016년 8월 폭염에 따른 표층수온의 지연시간 고찰

  • Kim, Ju-Yeon (Oceanic Climate of Ecology Research Division, National Institute and Fisheries Science) ;
  • Han, In-Seong (Oceanic Climate of Ecology Research Division, National Institute and Fisheries Science)
  • 김주연 (국립수산과학원 기후변화연구과) ;
  • 한인성 (국립수산과학원 기후변화연구과)
  • Received : 2017.09.06
  • Accepted : 2017.10.28
  • Published : 2017.10.31
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, we examined responses to Sea Surface Temperature (SST) as the result of an intensive heat wave that took place in August 2016 and the cross correlation between SST and Air Temperature (AT) in August 2016. The data used included the SST of 8 ocean buoys, provided by the National Institute of Fisheries Science, and the AT of AWS near those 8 ocean buoys recorded every hour. To identify an appropriate data period, on FIR filter was applied. Two locations in the south sea were selected to be observed over similar a period, with a high correlation coefficient of about 0.8 and a time lag of about 50 hours between AT and SST. For the yellow sea, due to shallow waters and tidal currents, SST showed a rapid response caused by changes in AT. The east sea showed a negative correlation between AT and SST because of significant water depth and marine environment factors. By identifying the time lag between AT and SST, damage to aquatic organisms can be minimized, and we expect to develop a rapid response system for damage to the fishery industry caused by extreme heat waves.

본 연구에서는 2016년 8월 해역(서해, 남해, 동해)별로 기온에 따른 수온의 반응 및 지연시간을 연구하였다. 사용된 1시간 간격의 자료는 국립수산과학원에서 제공하는 8개 지점 해역별 수온자료와 수온관측소 인근 8개 지점 기상청 AWS 기온자료를 이용하였다. 내삽법을 이용하여 관측되지 못한 자료값을 계산하였고, FIR Filter를 이용하여 조류 및 일변화 영향을 제거하여 자료의 주기성을 파악하였다. 남해 2 지점은 기온과 수온이 유사한 주기성을 가졌으며, 0.8의 높은 상관계수와 약 50시간의 지연시간을 나타냈다. 서해 4 지점은 얕은 수심과 조석차로 인해 기온변화에 따른 수온의 지연시간이 약 12시간으로 반응시간이 다른 해역에 비해 빨랐다. 동해는 해안지형에 따른 환경적 요인과 깊은 수심으로 인해 기온과 수온의 상관성을 보이지 않았다. 본 연구를 통해 AT-SST 간의 지연시간을 파악함으로써 양식생물의 피해를 최소화 하는데 기여할 것이고, 수산업에서의 폭염 피해에 대한 신속한 대응 체계가 마련될 것이라 기대한다.

Keywords

References

  1. Abnormal climate report in 2016(2017), Korea Meeteorological Administration, pp. 63-71.
  2. Bates, B. C., S. W. Kundzewicz, S. Wu and J. P. Palutikof, Eds.(2008), Climate change and water, Technical paper of the IPCC Secretariat, Geneca, Swiss.
  3. Choi, J. D and Y. J. Choi(2014), The Economic Feasiblity Analysis of Grow out Phase Production of Oyster Farming by Rising Water Temperature, Ocean and Polar Research, Vol. 36, No. 2, pp. 157-163. https://doi.org/10.4217/OPR.2014.36.2.157
  4. Choi, H. S., J. I. Myoung, M. A. Park and M. Y. Cho(2009), A study on the summer mortality of Korean rockfish Sebastes schlegeli in Korea, Journal of Fish Pathology, Vol. 22, No. 2, pp. 155-162.
  5. Han, I. S., Y. S. Suh, J. D. Hwang, W. A. Lim, S. H. Youn, J. S. Lee and C. S. Chung(2011), A study on the causes of mass mortality of aquaculture and the variation of water temperature in sea area by abnormal waves, KAOSTS joint conference abstract.
  6. Kim, H. J.(2014), Weather change! How dose it affect wather quality and water ecosystem!!, Rural Research Institute focus, No. 33.
  7. Lee, D. C., Y. C. Park, C. Y. Jeon, J. Y. Yang, Y. B. Hur, J. W. Kim and K. C. Cho(2013), A report on the 2012 mass summer mortalities of black rockfish, Sebastes schlegeli in the Southeast Sea, Korea, Journal of Fish Pathology, Vol. 26, No. 3, pp. 173-183. https://doi.org/10.7847/jfp.2013.26.3.173
  8. Monthly weather report on August(2016), Korea Meteorological Administration, p. 9.
  9. Oceanographic Information of the Korea Waters in 2016 (2017), National Institute of Fisheries Science, p. 260.
  10. Yoo, J. T., Y. H. Kim, S. H. Lee and J. K. Kim(2017), Community Structure of Larval Fish Assemblage in the Coastal Waters of South-central Korea during Spring and Summer, Korea Journal of Ichthyology, Vol. 29, No. 1, pp. 80-86.

Cited by

  1. High Frequency Variation of Low Water Temperature due to Arctic Oscillation Around the Western and Southern Coast of Korea During Winter 2017/2018 vol.25, pp.3, 2017, https://doi.org/10.7837/kosomes.2019.25.3.328
  2. Change the Annual Amplitude of Sea Surface Temperature due to Climate Change in a Recent Decade around the Korean Peninsula vol.26, pp.3, 2017, https://doi.org/10.7837/kosomes.2020.26.3.233