물리-생지화학 결합 모형을 이용한 여름철 동해 난수성 소용돌이내의 N-P-Z-D 분포 특성

Title
물리-생지화학 결합 모형을 이용한 여름철 동해 난수성 소용돌이내의 N-P-Z-D 분포 특성
Alternative Title
On the summer distributions of N-P-Z-D in an anticyclonic eddy in the East Sea simulated using a physical-biogeochemical coupled model
Author(s)
강현우; 서옥희; 소재귀; 장찬주
KIOST Author(s)
Kang, Hyoun-Woo(강현우)Seo, Ok Hee(서옥희)So, Jae Kwi(소재귀)Jang, Chan Joo(장찬주)
Publication Year
2016-05-26
Abstract
Mesoscale eddies appear frequently in the East Sea (Japan Sea) and they have significant effects on the distributions of nutrients (N), phytoplankton (P), zooplankton (Z) and detritus (D) resulting in changes of carbon export into the deep layer, especially in summer. In this study, we have analysed three kinds of nutrients (phosphate, nitrate, silicate), diatoms, three size-classed phytoplankton and zooplankton functional groups, as well as dissolved and particulate organic carbon in an anticyclonic eddy simulated by a coupled system. It is based on three-dimensional baroclinic ocean circulation model, POLCOMS (Proudman Oceanographic Laboratory Coastal Ocean Modelling System) and a lower trophic biogeochemical model, ERSEM (European Regional Seas Ecosystem Model). The phytoplankton uses the entrained nutrients at the rim of warm eddy as the light is available for photosynthesis resulting in subsurface chlorophyll maximum layer, which is formed just on top of the euphotic depth. The distributions of phytoplanktons inside the eddy are locally different and characterized by their types. Diatoms are the major source of total chlorophyll-a blooming at the subsurface rim of the eddy and the pico-phytoplankton has the second largest biomass along the slope of the euphotic depth lowered to the center of the eddy. Nano-phytoplankton, the least biomass though, blooms on top layer of the diatoms in the rim area and also in tlayer, especially in summer. In this study, we have analysed three kinds of nutrients (phosphate, nitrate, silicate), diatoms, three size-classed phytoplankton and zooplankton functional groups, as well as dissolved and particulate organic carbon in an anticyclonic eddy simulated by a coupled system. It is based on three-dimensional baroclinic ocean circulation model, POLCOMS (Proudman Oceanographic Laboratory Coastal Ocean Modelling System) and a lower trophic biogeochemical model, ERSEM (European Regional Seas Ecosystem Model). The phytoplankton uses the entrained nutrients at the rim of warm eddy as the light is available for photosynthesis resulting in subsurface chlorophyll maximum layer, which is formed just on top of the euphotic depth. The distributions of phytoplanktons inside the eddy are locally different and characterized by their types. Diatoms are the major source of total chlorophyll-a blooming at the subsurface rim of the eddy and the pico-phytoplankton has the second largest biomass along the slope of the euphotic depth lowered to the center of the eddy. Nano-phytoplankton, the least biomass though, blooms on top layer of the diatoms in the rim area and also in t
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/24733
Bibliographic Citation
Liege Colloquium, pp.1, 2016
Publisher
GHER
Type
Conference
Language
English
Publisher
GHER
Related Researcher
Research Interests

ocean circulation-biogeochemical modelling,ocean system modelling,해양순환-생지화학 결합 모델링,해양시스템모델링

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