Interannual variability of summer chlorophyll in the Southern ocean: ENSO effects SCOPUS KCI

Title
Interannual variability of summer chlorophyll in the Southern ocean: ENSO effects
Author(s)
Kim, Y.S.; Jang, C.J.; Son, Y.-B.
KIOST Author(s)
Kim, Yong Sun(김용선)Jang, Chan Joo(장찬주)Son, Young Baek(손영백)
Publication Year
2015-06
Abstract
The Southern Ocean (SO) plays a primary role in global climate by storing and transporting anthropogenic carbon dioxide through the meridional overturning circulation and the biological pumping process. In this study, we aim to investigate interannual variability of summer chlorophyll concentration in the SO and its relation with the El Niño Southern Oscillation (ENSO), using satellite ocean color data covering 16 years from 1997 to 2012. During El Niño periods, chlorophyll concentration tends to increase in the subtropics (north of the subantarctic front). This chlorophyll increase is likely linked to El Niñoinduced surface cooling that increases nutrient supply through enhanced vertical mixing in the subtropics. On the other hand, the subpolar gyres show localized chlorophyll changes in response to the ENSO. The localized response seems to be primarily attributed to changes in sea-ice concentrations. Our findings suggest that ENSO contributes interannual variability of chlorophyll in the SO through different mechanisms depending on regions. © 2015 Korea Ocean Research and Development Institute. All rights reserved.
ISSN
1598-141X
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/6493
DOI
10.4217/OPR.2015.37.2.149
Bibliographic Citation
Ocean and Polar Research, v.37, no.2, pp.149 - 159, 2015
Publisher
Korea Ocean Research and Development Institute
Keywords
Chlrorophyll; ENSO; Sea-ice; Southern annular mode; SST
Type
Article
Language
Korean
Document Type
Article
Publisher
Korea Ocean Research and Development Institute
Related Researcher
Research Interests

upper ocean dynamics,regional climate modeling,ocean climate change,해양상층역학,지역기후모델링,해양기후변화

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