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The Tsushima Warm Current from a High Resolution Ocean Prediction Model, HYCOM

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Author(s): Seongbong Seo | Young-Gyu Park | Jae-Hun Park | Ho Jin Lee | N. Hirose

Journal: Ocean and Polar Research
ISSN 1598-141X

Volume: 35;
Issue: 2;
Start page: 135;
Date: 2013;
Original page

Keywords: Tsushima Warm Current | Korea Strait | HYCOM | high resolution | ocean prediction model

ABSTRACT
This study investigates the characteristic of the Tsushima Warm Current from an assimilated high resolution global ocean prediction model, 1/12o Global HYbrid Coordiate Ocean Model (HYCOM). The model results were verified through a comparison with current measurements obtained by acoustic Doppler current profiler (ADCP) mounted on the passenger ferryboat between Busan, Korea, and Hakata, Japan. The annual mean transport of the Tsushima Warm Current was 2.56 Sverdrup (Sv) (1 Sv = 106 m3s−1), which is similar to those from previous studies (Takikawa et al. 1999; Teague et al. 2002). The volume transport time series of the Tsushima Warm Current from HYCOM correlates to a high degree with that from the ADCP observation (the correlation coefficient between the two is 0.82). The spatiotemporal structures of the currents as well as temperature and salinity from HYCOM are comparable to the observed ones.
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