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Korea Institute of Electronic Communication Science (한국전자통신학회)
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Study on the Correlation Between the Upwelling Cold Waters and Cochlodinium polykrikoides Red Tide in the Southeast Sea of Korea

한국 남동해역의 냉수대 발생 변화와 Cochlodinium polykrikoides 적조와의 상관성 연구

  • 김범규 (부경대학교 지구환경시스템과학부) ;
  • 황도현 (부경대학교 지구환경시스템과학부) ;
  • 박수호 (부경대학교 지구환경시스템과학부) ;
  • 김흥민 (부경대학교 지구환경시스템과학부) ;
  • 엥흐자리갈 운자야 (부경대학교 지구환경시스템과학부) ;
  • 김대현 (오션테크(주)) ;
  • 윤홍주 (부경대학교 지구환경시스템과학부)
  • Received : 2018.11.05
  • Accepted : 2019.06.15
  • Published : 2019.06.30
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Abstract

In the southeast sea of Korea, the cold water is concentrated in every summer, showing in abnormal oceanic conditions. Cold water occurred in the southeast sea is dominantly influenced by wind, which occurs when the south wind is continuously blowing for 3 to 7 days more. In this study, water temperature, wind speed and direction data of KMA, KHOA and KHNP, Chlorophyll-a of COMS/GOCI, GHRSST Level 4 SST of NASA, and red tide alert data of the National Institute of Fisheries Science were used to analyze the correlation between occurrence and change of the cold water and the red tide of Cochlodinium polykrikoides. The upwelling cold water mass showed a characteristic of moving northward along the current and occurrence a high concentration of chlorophyll along the water mass. Also, when the warm current were strong, the characteristic of red tide showed a northward moving.

한반도 동해 남부해역은 매년 하계에 집중적으로 냉수대가 형성되어 빈번한 이상해황이 발생한다. 동해안에 발생하는 냉수대는 바람의 영항을 지배적으로 받는데 남풍계열의 바람이 3일에서 7일 이상 지속적으로 불어오는 경우 발생한다. 본 연구에서는 냉수대의 발생과 변화 및 Cochlodinium polykrikoides 적조와의 상관성을 분석하기 위하여 기상청, 한국수력원자력, 해양조사원의 부이의 수온과 풍향 및 풍속, COMS/GOCI의 클로로필 자료, 바람자료와 NOAA에서 제공하는 GHRSST Level 4 SST, 국립수산과학원의 적조속보자료를 활용하였다. 동해안 연안용승시 용승된 수괴는 해류를 따라 북쪽으로 이동하는 특성을 보이며 수괴를 따라 고농도의 클로로필이 형성되는 특성을 보였다. 남쪽의 동한난류의 세력이 강하게 형성될 때 적조가 북상하는 특성을 나타내었다.

Keywords

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그림 1. 연구 지역 및 부산, 기장, 울기, 감포, 호미곶, 포항, 영덕의 해양관측부이 위치 Fig. 1 Study area and ocean observatory buoy of Busan, Gijang, Ullgi, Gampo, Homigot, Pohang, Yongdeok

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그림 2. 2013년, 2014년의 부산, 기장, 울기, 감포, 호미곶, 포항, 영덕의 수온변화 Fig. 2 Changes in water temperature in 2013 and 2014 in Busan, Gijang, Ullgi, Gampo, Homigot, Pohang and Youngdeok

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그림 3. 2013년 7월 8일(A, E), 7월 16일(B, F), 7월 21일(C, G), 7월 25일(D, H)의 SST 및 Chlorophyll-a 영상 Fig. 3 Daily SST and Chl-a images on July 08(A, E), July 16(B, F), July 21(C, G), July 25(D, H) in 2013

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그림 4. 2013년 7월 21일(A, E), 7월 27일(B, F), 7월 31일(C, G), 8월 12일(D, H)의 SST 및 Chlorophyll-a 영상 Fig. 4 Daily SST and Chl-a images on July 21(A, E), July 27(B, F), July 31(C, G), August 12(D, H) in 2014

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그림 5. 2013년, 2014년의 부산, 울기, 포항의 풍향 및 풍속 Fig. 5 Wind direction and wind speed of Busan, Ullgi and Pohang in 2013 and 2014

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그림 6. 2013년(A, B, C, D), 2014년(E, F, G, H), 2015년(I, J, K, L)의 적조 발생 위치 정보 및 SST Fig. 6 Red tide occurrence lacation information and SST from 2013(A, B, C, D), 2014(E, F, G, H), 2015(I, J, K, L)

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그림 7. 2013년 부산, 기장, 울기, 감포, 호미곶, 포항, 영덕의 적조 발생 해역(A)과 농도(B)의 변화. Blue shadow는 발생 해역과 농도가 높게 나타난 기간 Fig. 7 Changes in red tide occurrence area(A) and concentration(B) in Busan, Gijang, Ullgi, Gampo, Homigot, Pohang and Yongdeok in 2013. Blue shadow show the period of high occurrence area and concentration

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그림 8. 2014년 부산, 기장, 울기, 감포, 호미곶, 포항, 영덕의 적조 발생 해역(A)과 농도(B)의 변화. Blue shadow는 발생 해역과 농도가 높게 나타난 기간 Fig. 8 Changes in red tide occurrence area(A) and concentration(B) in Busan, Gijang, Ullgi, Gampo, Homigot, Pohang and Yongdeok in 2014. Blue shadow show the period of high occurrence area and concentration

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그림 9. 2015년 부산, 기장, 울기, 감포, 호미곶, 포항, 영덕의 적조 발생 해역(A)과 농도(B)의 변화. Blue shadow는 발생 해역과 농도가 높게 나타난 기간 Fig. 9 Changes in red tide occurrence area(A) and concentration(B) in Busan, Gijang, Ullgi, Gampo, Homigot, Pohang and Yongdeok in 2015. Blue shadow show the period of high occurrence area and concentration

표 1. 2013 ∼ 2015년 연안 용승 및 적조 발생 기간 Table 1. Days of costal upwelling and red tide occurrence date in 2013 ∼ 2015

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