Estimation of wind drift current in the Soya Strait
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- 作者：Wei Zhang ; Naoto Ebuchi ; Yasushi Fukamachi ; Yutaka Yoshikawa
- 关键词：High ; frequency ocean radar ; Wind drift current ; Soya warm current ; Acoustic Doppler current profiler ; Soya Strait ; Interior current
- 刊名：Journal of Oceanography
- 出版年：2016
- 出版时间：April 2016
- 年：2016
- 卷：72
- 期：2
- 页码：299-311
- 全文大小：1,493 KB
- 参考文献：Chereskin TK, Roemmich D (1991) A comparison of measured and wind-derived Ekman transport at 11°N in the Atlantic Ocean. J Phys Oceanogr 21:869–878CrossRef
Cushuman-Roisin B (1994) Introduction to geophysical fluid dynamics. Prentice Hall College Div, Englewood Cliffs, p 320
Ebuchi N, Fukamachi Y, Ohshima KI, Shirasawa K, Ishikawa M, Takatsuka T, Daibo T, Wakatsuchi M (2006) Observation of the Soya Warm Current using HF ocean radar. J Oceanogr 62:47–61CrossRef
Ebuchi N, Fukamachi Y, Ohshima KI, Wakatsuchi M (2009) Subinertial and seasonal variations in the Soya Warm Current revealed by HF ocean radars, coastal tide gauges, and bottom-mounted ADCP. J Oceanogr 65:31–43CrossRef
Fukamachi Y, Tanaka I, Ohshima KI, Ebuchi N, Mizuta G, Yoshida H, Takayanagi S, Wakatsuchi M (2008) Volume transport of the Soya Warm Current revealed by bottom-mounted ADCP and ocean-radar measurement. J Oceanogr 64:385–392CrossRef
Fukamachi Y, Ohshima KI, Ebuchi N, Bando T, Ono K, Sano M (2010) Volume transport in the Soya Strait during 2006–2008. J Oceanogr 66:685–696CrossRef
Hanawa K, Mitsudera H (1985) On the data processing of daily mean values of oceanographic data—note on the daily mean sea-level data. Bull Coast Oceanogr 23:79–87 (in Japanese)
Hanawa K, Yoshikawa Y, Taneda T (1996) TOLEX-ADCP monitoring. Geophys Res Lett 23:2429–2432CrossRef
Ide Y, Yoshikawa Y (2015) Effects of diurnal cycle of surface heat flux on wind-driven flow. J Oceanogr. doi:10.1007/s10872-015-0328-y (in press)
Matsuyama M, Wadaka M, Abe T, Aota M, Koike Y (2006) Current structure and volume transport of the Soya Warm Current in summer. J Oceanogr 62:197–205CrossRef
Nakanowatari T, Ohshima KI (2014) Coherent sea level variability in and around the Sea of Okhotsk. Prog Oceanogr 126:58–70CrossRef
Ohshima KI (1994) The flow system in the Sea of Japan caused by a sea level difference through shallow straits. J Geophys Res 99:9925–9940CrossRef
Price JF, Weller RA, Pinkel R (1986) Diurnal cycling: observations and models of the upper ocean response to diurnal heating, cooling, and wind mixing. J Geophys Res 91:8411–8427CrossRef
Price JF, Weller RA, Schudlich RR (1987) Wind-driven ocean currents and Ekman transport. Science 238:1534–1538CrossRef
Schudlich RR, Price JF (1998) Observations of seasonal variation in the Ekman layer. J Phys Oceanogr 28:1187–1204CrossRef
Steiger JH (1980) Tests for comparing elements of a correlation matrix. Psychol Bull 87:245–251CrossRef
Teague WJ, Hwang PA, Jacobs GA, Book JW, Perkins HT (2005) Transport variability across the Korea/Tsushima Strait and the Tsushima Island Wake. Deep Sea Res II 52:1784–1801CrossRef
Thompson RORY (1983) Low-pass filters to suppress inertial and tidal frequencies. J Phys Oceanogr 13:1077–1083CrossRef
Toba Y (1988) Similarity law of wind wave and the coupling process of the air and water turbulent boundary layers. Fluid Dyn Res 2:263–279CrossRef
Tokeshi R, Ichikawa K, Fujii S, Sato K, Kojima S (2007) Estimating the geostrophic velocity obtained by HF radar observations in the upstream area of the Kuroshio. J Oceanogr 63:711–720CrossRef
Tomita H, Kubota M, Cronin MF, Iwasaki S, Konda M, Ichikawa H (2010) An assessment of surface heat fluxes from J-OFURO2 at the KEO and JKEO sites. J Geophys Res 115:C03018
Weller RA (1981) Observations of the velocity response to wind forcing in the upper ocean. J Geophys Res 86:1969–1977CrossRef
Yoshikawa Y, Masuda A (2009) Seasonal variations in the speed factor and deflection angle of the wind-driven surface flow in the Tsushima Strait. J Geophys Res 114:C12022CrossRef
Yoshikawa Y, Matsuno T, Marubayashi K, Fukudome K (2007) A surface velocity spiral observed with ADCP and HF radar in the Tsushima Strait. J Geophys Res 112:C06022
Yoshikawa Y, Masuda A, Marubayashi K, Ishibashi M (2010) Seasonal variations of the surface currents in the Tsushima Strait. J Oceanogr 66:223–232CrossRef - 作者单位：Wei Zhang (1)
Naoto Ebuchi (2)
Yasushi Fukamachi (2)
Yutaka Yoshikawa (3)
1. Graduate School of Environmental Science, Hokkaido University, Sapporo, Japan
2. Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan
3. Graduate School of Science, Kyoto University, Kyoto, Japan - 刊物类别：Earth and Environmental Science
- 刊物主题：Earth sciences
Oceanography
Hydrobiology - 出版者：Springer Netherlands
- ISSN：1573-868X
文摘
Three high-frequency (HF) ocean radars were deployed around the Soya (La Pérouse) Strait in 2003 to monitor the Soya Warm Current (SWC). Surface current observed by the HF radars contains a wind drift component, which must be removed in order to estimate the interior SWC. The wind drift parameters, speed factor and turning angle were derived from the surface current measured by the HF radars, the vertical current profile measured by a bottom-mounted acoustic Doppler current profiler (ADCP), and wind data from the numerical weather analysis system operated by the Japan Meteorological Agency (JMA) from October 1, 2006 to July 24, 2008. The ensemble-mean turning angle and speed factor from the entire dataset (excluding August 2007) were estimated to be 28° and 0.66 %, respectively. No significant seasonal variations were discernible in the wind drift parameters. After removal of the wind drift current estimated from the wind with the ensemble-mean drift parameters, the correlation coefficient between the along-shore current speed and sea level difference between the Sea of Japan and Sea of Okhotsk improved from 0.791 to 0.825. It was revealed that the magnitude of wind drift current reaches 45 % of that of the interior current in winter and approximately 20 % in summer, indicating the importance of wind drift current estimation in this region.