Influence of Asian monsoon and ENSO events on particle fluxes in the western subtropical Pacific SCIE SCOPUS

Cited 10 time in WEB OF SCIENCE Cited 11 time in Scopus
Title
Influence of Asian monsoon and ENSO events on particle fluxes in the western subtropical Pacific
Author(s)
Kim, Hyung Jeek; Hyeong, Kiseong; Park, Jong-Yeon; Jeong, Jin-Hyun; Jeon, Dongchull; Kim, Eung; Kim, Dongseon
KIOST Author(s)
Kim, Hyung Jeek(김형직)Hyeong, Kiseong(형기성)Kim, Eung(김응)Kim, Dongseon(김동선)
Publication Year
2014-08
Abstract
A time-series sediment trap was deployed from October 2007 to May 2011 in the western subtropical Pacific with the aim of understanding the seasonal and inter-annual variability on particle flux in response to El Nino-Southern Oscillation (ENSO) events. Total mass fluxes varied from 3.04 mg m(-2) day(-1) to 31.1 mg m(-2) day(-1), with high fluxes during February-April and low fluxes during other months. This seasonal variation was also characterized by a distinct change in the CaCO3 flux between the two periods. The marked increase in particle flux during February-April may be attributed to enhanced biological productivity in surface waters caused by strong wind-driven mixing in response to the western North Pacific monsoon system. The 2009/10 strong El Nino was accompanied by a significant reduction in particle flux, whereas the La Nina had no recognizable effect on particle flux in the subtropical Pacific In particular, in the mature phase of the 2009/10 strong El Nino, the fluxes of organic carbon and biogenic silica decreased by 70-80% compared with those during the normal period, implying that the El Nino acted to suppress biological productivity in surface waters. The suppression of biological productivity during the 2009/10 strong El Nino is attributed to the decrease in precipitation due to the shift in the western Pacific warm pool. This finding is opposite that of other studies of the western equatorial Pacific where El Nino events were observed to result in an increase in biological productivity and particle flux. The difference in particle flux between the western equatorial and subtropical Pacific is attributed to the regional differences in oceanic and atmospheric circulation systems generated by the strong El Nino (C) 2014 Elsevier Ltd. All rights reserved.
ISSN
0967-0637
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/2767
DOI
10.1016/j.dsr.2014.05.002
Bibliographic Citation
DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS, v.90, pp.139 - 151, 2014
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Subject
EASTERN TROPICAL PACIFIC; SEA-SURFACE TEMPERATURE; EQUATORIAL PACIFIC; INTERANNUAL VARIABILITY; BIOGENIC PARTICLE; DEEP-OCEAN; FORAMINIFERAL FLUXES; SEASONAL-VARIATIONS; NORTH PACIFIC; WARM POOL
Keywords
Time-series sediment trap; ENSO; Organic carbon; CaCO3; Biogenic silica
Type
Article
Language
English
Document Type
Article
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Related Researcher
Research Interests

Particle flux,Carbon cycle,Climate Change,입자 플럭스,탄소순환,기후변화

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