Observed vertical fine-structure and mixing in the western equatorial Pacific Ocean
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Title
- Observed vertical fine-structure and mixing in the western equatorial Pacific Ocean
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Author(s)
- 이재학; 홍창수; 백규남; K. Richards
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Alternative Author(s)
- 이재학; 홍창수; 백규남
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Publication Year
- 2013-06-26
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Abstract
- Hydrographic observation including high vertical resolution velocity using 6oo kHz Lowering Acoustic Doppler Current Profilers and turbulence using a Microstructure profiler (MSP) along a TRION line at 156E was conducted in June 2011. Small-vertical-scale features in the vertical shear(SVSs) appear in the thermocline depth but less clear than previous observations reported in Richards et al(2012). Turbulent kinetic energy dissipation rate, ε estimated from MSP data reveal patches of high ε in the thermocline suggesting mixing associated with SVSs. It is indicated that enhanced thermocline mixing is also related to the meridional interleaving structure of water masses. Four-day time series data at 0.5N,156E reveal that the flow field varies strongly with semi diurnal frequency. An about 30 m thick vertical band of high energy dissipation rate appears in the depth range associated with strong vertical velocity shear in the thermocline throughout the time of the measurements.
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/26897
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Bibliographic Citation
- AOGS Annual Meeting, pp.1, 2013
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Publisher
- AOGS
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Type
- Conference
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Language
- English
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