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

Title
Vertical Variation of the Particle Flux in the Eastern Tropical Pacific from 2009 to 2010
Alternative Title
동태평양 열대해역에서 2009–2010년 침강입자 플럭스의 수직 변화
Author(s)
Kim, Hyung Jeek; Cho, So Sul; Kim, Dong Seon; Kim, Kyeong Hong; Yoo, Chan Min
KIOST Author(s)
Kim, Hyung Jeek(김형직)Cho, So Sul(조소설)Kim, Dong Seon(김동선)Kim, Kyeong Hong(김경홍)Yoo, Chan Min(유찬민)
Alternative Author(s)
김형직; 조소설; 김동선; 김경홍; 유찬민
Publication Year
2022-09
Abstract
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. © 2022 Ocean and Polar Research.
ISSN
1598-141X
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/43267
DOI
10.4217/OPR.2022020
Bibliographic Citation
Ocean and Polar Research, v.44, no.3, pp.221 - 233, 2022
Publisher
한국해양과학기술원
Keywords
carbon cycle; eastern tropical pacific; particle flux; sediment trap; sinking particles
Type
Article
Language
Korean
Document Type
Article
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