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http://dx.doi.org/10.4217/OPR.2011.33.3.385

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

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)
Publication Information
Ocean and Polar Research / v.33, no.spc3, 2011 , pp. 385-395 More about this Journal
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
time-series sediment trap; total mass flux; organic carbon; $CaCO_3$; planktonic foraminifera;
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