1차원 GOTM-ERSEM을 이용한 울릉분지 식물플랑크톤 번성 재현

Abstract

We applied 1D GOTM-ERSEM to the Ulleung basin (UB) in the southwestern East Sea where primary productivity is relatively high. Experiments with three different stratification structures reveal that vertical mixing plays a crucial role in seasonal variation of the phytoplankton functional groups such as flagellate, pico and dino phytoplankton by controlling nutrient entrainment into the upper ocean from the nutrient-rich deep ocean. However, in case of diatom which is dominant in the UB, the simulated amount was underestimated due to a silicate limitation throughout the year including spring and fall blooms. It indicates silicate supply in the UB is also controlled by non-1D processes such as horizontal advection or eddy-induced upwelling.asonal variation of the phytoplankton functional groups such as flagellate, pico and dino phytoplankton by controlling nutrient entrainment into the upper ocean from the nutrient-rich deep ocean. However, in case of diatom which is dominant in the UB, the simulated amount was underestimated due to a silicate limitation throughout the year including spring and fall blooms. It indicates silicate supply in the UB is also controlled by non-1D processes such as horizontal advection or eddy-induced upwelling.