Turbulent mixing and Chlorophyll maximum layer in the East China Sea in summer

Title
Turbulent mixing and Chlorophyll maximum layer in the East China Sea in summer
Author(s)
이재학; 홍창수; 강현우; 소재귀; 백규남; 김한나
KIOST Author(s)
Lee, Jae Hak(이재학)Kang, Hyoun-Woo(강현우)So, Jae Kwi(소재귀)
Publication Year
2015-04-23
Abstract
The layered structure of the Chlorophyll maximum and vertical mixing in the northern East China Sea in summer is examined by analyzing data obtained in 2003-2007. The subsurface Chlorophyll-a maximum (SCM) layer appears in large parts of studied area. The SCM layer gets shallow toward the west and leads to the surface Chlorophyll maximum in the Changjiang bank where the low salinity water appears. The results of numerical simulation support that the lateral dependence of the SCM layer depth is a common summertime feature in the region. The turbulent energy dissipation rates estimated based on the microstructure profiler measurements show high within the thermocline, with typical value of O(10^-7 W/kg) and occasionally close to 10^-6 W/kg. Corresponding vertical eddy diffusivities reach to 10-2 m^2/s. Such high values of dissipation rate and vertical diffusivity match with the SCM layer. The SCM layer gets shallow toward the west and leads to the surface Chlorophyll maximum in the Changjiang bank where the low salinity water appears.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/25613
Bibliographic Citation
PAMS, pp.124, 2015
Publisher
PAMS
Type
Conference
Language
English
Publisher
PAMS
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