동중국해 북부해역에서의 해저 부근 혼합

Title
동중국해 북부해역에서의 해저 부근 혼합
Alternative Title
Near-bottom mixing in the northern East China Sea
Author(s)
이재학; 장성태; 홍창수; I. Lozovasky
Publication Year
2007-07-03
Abstract
Shipboard ADCP, CTD and MSP (microstructure profiler) observations were made in the continental shelf in the East China Sea in August 2005 and August 2006. The data sets reveal variable bottom mixed layer heights with 5 ~ 15 m. Near the bottom, the turbulent kinetic energy dissipation rates are high with typically O(10-7 Wkg-1) but occasionally close to 10-6 Wkg-1 and corresponding vertical eddy diffusivities reach to 10-2 m2s-1. High values of dissipation rate and vertical diffusivity are consistent with high turbidity especially in the shallow region. The data from repeated MSP castings and vessel mounted ADCP observations for 5 hours in 2005 and 25 hours in 2006 show that episodic intrusions of enhanced near-bottom turbulence into the upper layers of water column. Good correlation between the height of bottom mixed layer and the phase of tidal current indicates near-bottom mixing in the region occurs mainly due to the tidal stirring.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/30430
Bibliographic Citation
IUGG 2007, pp.1, 2007
Publisher
IUGG/IAPSO
Type
Conference
Language
English
Publisher
IUGG/IAPSO
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