기후변화에 의한 기초생산력 변동: 중위도 해양의 엽록소 최대층 특성 연구

Title
기후변화에 의한 기초생산력 변동: 중위도 해양의 엽록소 최대층 특성 연구
Alternative Title
Reponses of marine primary productivity to the future climate change scenario: the role of the subsurface chlorophyll maximum in the mid-latitudinal marginal seas
Author(s)
Kong Christina Eunjin; 유신재; 장찬주; 박지수
KIOST Author(s)
Jang, Chan Joo(장찬주)
Publication Year
2016-11-07
Abstract
The seasonal cycle and magnitude of marine primary production (PP) is projected to change in response to future climate variability. It is likely that the changes in PP will also influence the structure and dynamic of the marine ecosystem and food web interaction. Studies have shown that the global PP appears to have decreased over the past several decades. Especially, recent global prediction models have indicated that the PP is expected to decrease in the mid-latitudinal marginal seas. However, the challenges in understanding and predicting PP in response to climate variability is quite complex, particularly the change of PP in the SCM is not well addressed.In this study, we examined characteristics (thickness, depth, and peak) of SCM in the mid-latitudinal marginal seas of Northwestern Pacific. We also analyzed how the physical factors (temperature, salinity, sigma-t, etc.) affect the SCM variability using the in-situ data collected from CTD profiler at more than 100 stations. Our results showed that the depth of SCM layers highly correlates with MLD, as SCM being formed at or above the base of the thermocline. As global warming continues, stratification will be strengthened which will alter the depth and density gradient of the thermocline. This, in turn, will change the formation and depth of SCM and subsequently primary productivity of the upper mixed layer ocean. In this context, we will also discuss the further implication of such potential changes in SCM dynamics in the mid-latitudinal marginal seas.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/24365
Bibliographic Citation
2016 PICES, pp.278, 2016
Publisher
PICES
Type
Conference
Language
English
Publisher
PICES
Related Researcher
Research Interests

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

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