Ocean and Polar Research

  • 제44권3호
  • /
  • Pages.221-233
  • /
  • 2022
  • /
  • 1598-141X(pISSN)
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  • 2234-7313(eISSN)
한국해양과학기술원 (Korea Institute of Ocean Science & Technology)
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동태평양 열대해역에서 2009-2010년 침강입자 플럭스의 수직 변화

Vertical Variation of the Particle Flux in the Eastern Tropical Pacific from 2009 to 2010

  • 김형직 (한국해양과학기술원 제주특성연구센터) ;
  • 조소설 (한국해양과학기술원 해양환경연구센터) ;
  • 김동선 (한국해양과학기술원 해양환경연구센터) ;
  • 김경홍 (한국해양과학기술원 심해저광물자원연구센터) ;
  • 유찬민 (한국해양과학기술원 심해저광물자원연구센터)
  • Kim, Hyung Jeek (Jeju Marine Research Center, Korea Institute of Ocean Science & Technology) ;
  • Cho, Sosul (Marine Environmental Research Center, Korea Institute of Ocean Science & Technology) ;
  • Kim, Dongseon (Marine Environmental Research Center, Korea Institute of Ocean Science & Technology) ;
  • Kim, Kyeong Hong (Deep-sea Mineral Resources Research Center, Korea Institute of Ocean Science & Technology) ;
  • Yoo, Chan Min (Deep-sea Mineral Resources Research Center, Korea Institute of Ocean Science & Technology)
  • 투고 : 2022.06.29
  • 심사 : 2022.09.07
  • 발행 : 2022.09.30
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초록

A sediment trap had been deployed at 1250 m depth in the Eastern Tropical Pacific (ETP) from September 2009 to July 2010, with the aim of understanding the temporal and vertical variability of particle flux. During the monitoring period, total particle flux varied from 12.4 to 101.0 mg m-2day-1, with the higher fluxes in January-March 2010. Biogenic particle flux varied in phase with the total particle flux. The increase in total particle flux during January-March 2010 was attributed to the enhanced biological production in the surface layer caused by wind-driven mixing in response to the seasonal shifts in the location of the Intertropical convergence zone. The export ratio (e-ratio) was estimated using the particulate organic carbon flux and satellite-derived net primary production data. The estimated e-ratios changed between 0.8% and 2.8% (1.4±0.6% on average). The ratio recorded in the negative phase of Pacific decadal oscillation (PDO) was similar to the previous results obtained from the ETP during the 1992/93 periods in the positive phase of PDO. This suggests that the regime shift of the PDO is not related to the carbon export ratio.

키워드

과제정보

본 연구는 해양수산부 R&D 사업인 국제해저기구 의무이행 및 심해저 개발역량 확충연구(20160099) 과제의 지원을 받아 수행되었습니다.

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