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- Title
Spatial Structure of Turbulent Mixing in the Northwestern Pacific Ocean.
- Authors
Yang, Qingxuan; Zhao, Wei; Li, Min; Tian, Jiwei
- Abstract
Turbulent mixing in the northwestern Pacific Ocean is estimated using the Gregg-Henyey-Polzin scaling and Thorpe-scale methods. The data sources are the hydrographic observations during October and November 2005. The results reveal clear spatial patterns of turbulent mixing in the study area. High-level diffusivity on the order of 10−3 m2 s−1 or larger is found within the western boundary region, where the Kuroshio flows northward. The width covered by this prominent diffusivity shows an increase from 12° to 18°N. The horizontal distribution of depth-averaged diffusivity in the top 500 m shows enhanced mixing with diffusivity of 6 × 10−3 m2 s−1 south of 9°N where the Mindanao Eddy remains a quasi-permanent feature. These two distinct patterns of diffusivity distribution suggest that the Kuroshio and the Mindanao Eddy are likely responsible for the elevated turbulent mixing in the study area.
- Subjects
PACIFIC Ocean; OCEANIC mixing; TURBULENT mixing; HYDROGRAPHY; MESOSCALE eddies; OCEAN diffusion
- Publication
Journal of Physical Oceanography, 2014, Vol 44, Issue 8, p2235
- ISSN
0022-3670
- Publication type
Article
- DOI
10.1175/JPO-D-13-0148.1