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Temporal and Spatial Variations of Sinking-particle Fluxes in the Northwestern Subtropical Pacific

북서태평양 아열대 해역에서 침강입자 플럭스의 시·공간 변동

  • Kim, Hyung-Jeek (Deep-sea and Marine Geo-Resources Research Department, KORDI) ;
  • Hyeong, Ki-Seong (Deep-sea and Marine Geo-Resources Research Department, KORDI) ;
  • Yoo, Chan-Min (Deep-sea and Marine Geo-Resources Research Department, KORDI) ;
  • Jeon, Dong-Chull (Climate Change & Coastal Disaster Research Department, KORDI) ;
  • Jeong, Jin-Hyun (Climate Change & Coastal Disaster Research Department, KORDI) ;
  • Khim, Boo-Keun (Department of Oceanography, College of Natural Sciences, Pusan National University) ;
  • Kim, Dong-Seon (Climate Change & Coastal Disaster Research Department, KORDI)
  • 김형직 (한국해양연구원 심해.해저자원연구부) ;
  • 형기성 (한국해양연구원 심해.해저자원연구부) ;
  • 유찬민 (한국해양연구원 심해.해저자원연구부) ;
  • 전동철 (한국해양연구원 기후.연안재해연구부) ;
  • 정진현 (한국해양연구원 기후.연안재해연구부) ;
  • 김부근 (부산대학교 자연과학대학 해양시스템과학과) ;
  • 김동선 (한국해양연구원 기후.연안재해연구부)
  • Received : 2011.07.06
  • Accepted : 2011.09.09
  • Published : 2011.09.30

Abstract

Time-series sediment traps were deployed at 1,000 m water depth of the northwestern subtropical Pacific from July 2009 to June 2010, with the aim of understanding temporal and spatial variations of sinking-particle fluxes. The opening and closing of the traps was synchronized at 18-day periods for 20 events. Total mass fluxes showed distinct seasonal variations with high values for the summer-fall seasons and relatively low values for winter-spring. This seasonal variation at two stations was characterized by a distinct difference in $CaCO_3$ fluxes between the two seasons. The enhanced $CaCO_3$ flux in the summer - fall seasons might be attributed to an increased planktonic foraminiferal flux. Total mass flux at FM10 station was nearly 50% higher than that at FM1 station. The difference in $CaCO_3$ fluxes between two stations contributed nearly 70% of the difference of total mass fluxes. The $CaCO_3$ flux was a major component controlling temporal and spatial variation of sinking - particle fluxes in the western subtropical Pacific Ocean.

Keywords

References

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  1. Sinking Particle Flux in the Subtropical Oligotrophic Northwestern Pacific from a Short-term Sediment Trap Experiment vol.53, pp.2, 2018, https://doi.org/10.1007/s12601-018-0025-z