Turbulent mixing induced by Cold Water Intrusion over the southwestern East Sea

Title
Turbulent mixing induced by Cold Water Intrusion over the southwestern East Sea
Author(s)
서성봉; 박영규; 전찬형; 민홍식; 김동국; 박재훈
KIOST Author(s)
Seo, Seongbong(서성봉)Park, Young Gyu(박영규)Kim, Dong Guk(김동국)
Publication Year
2018-02-13
Abstract
Along the southeastern coast of Korea (southwestern part of the East Sea) the warm and salty Tsushima Warm Currents flows northeastward. During summer a southwestward cold water intrusion from the East Sea occurs along the bottom below thewarm current. Thus, a strong shear and consequently strong turbulent mixing are expected along the boundary between the warm water and cold water. To quantify the mixing hydrographic surveys using a free falling microstructure profiler (VMP-500) and CTD were conducted. Enhanced dissipation of energy was indeed observed along the interface located between 15°C to 20°C layers. Along the bottom there was another layer with enhanced energy dissipation. These high energy dissipations resulted in high vertical diffusivities. The layers of high vertical mixing slanted upward toward the coast could supply nutrient to the surface layer to support high productivity along the Korean coast.arm current. Thus, a strong shear and consequently strong turbulent mixing are expected along the boundary between the warm water and cold water. To quantify the mixing hydrographic surveys using a free falling microstructure profiler (VMP-500) and CTD were conducted. Enhanced dissipation of energy was indeed observed along the interface located between 15°C to 20°C layers. Along the bottom there was another layer with enhanced energy dissipation. These high energy dissipations resulted in high vertical diffusivities. The layers of high vertical mixing slanted upward toward the coast could supply nutrient to the surface layer to support high productivity along the Korean coast.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/23482
Bibliographic Citation
Ocean Science Meeting 2018, 2018
Publisher
AGU
Type
Conference
Language
English
Publisher
AGU
Related Researcher
Research Interests

ocean circulation,ocean mixing,marine debris,해양순환,해양혼합,해양부유물

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