Browse > Article
http://dx.doi.org/10.5467/JKESS.2010.31.1.088

Development of Apparatus and Methods for Understanding the Dynamics of the Western Boundary Current  

Jang, Swung-Hwan (Division of Science Education, Institute of Fusion Science, Chonbuk National University)
Shin, Jung-Sun (Division of Science Education, Institute of Fusion Science, Chonbuk National University)
Moon, Byung-Kwon (Division of Science Education, Center for Bridging Advanced Science and Education, Chonbuk National University)
Publication Information
Journal of the Korean earth science society / v.31, no.1, 2010 , pp. 88-94 More about this Journal
Abstract
A simple laboratory device and methodology are developed for deep understanding of the western boundary current (WBC). The apparatus consists of a rotating (count-clockwise) rectangular tank with a sloping bottom in order to simulate the beta effect, the variation of the Coriolis parameter with latitude. We also used a clockwise rotating disk at the surface water to mimic the wind stress forcing in mid-latitude oceans. Four experiments were carried out using some combination of a bottom type and a rotation of the tank. Experiment with the beta effect clearly demonstrated the WBClike flow as well as the Sverdrup interior. However, the water in a tank gave rise to an inertial motion under the influence of a constant Coriolis force alone. We also discussed a stiffening of the rotating fluid on the basis of the Taylor-Proudman effect. We believe that the apparatus and methods developed in this study help to understand the WBC due to the beta effect.
Keywords
western boundary current; rotating tank; Coriolis force; beta effect; Taylor-Proudman effect;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Pierini, S., Malvestuto, V., Siena, G., McClimans, T.A., and Lovas, S.M., 2008, A Laboratory Study of the Zonal Structure of Western Boundary Currents. Journal of Physical Oceanography, 38, 1073-1090.   DOI
2 Proudman, J., 1916, On the motion of solids in a liquid possessing vorticity. Proceedings of the Royal Society of London, Series A, 92, 408-424.   DOI
3 Siemens, C.W., 1866, On uniform rotation. Philosophical Transactions of the Royal Society of London, 156, 657-670.   DOI
4 Stommel, H., 1948, The westward intensification of winddriven ocean currents. Transactions American Geophysical Union, 29, 202-206.   DOI
5 Sverdrup, H.U., 1947, Wind-driven currents in a baroclinic ocean; with application to the equatorial currents of the eastern Pacific, Proceedings of the National Academy of Sciences of the United States of America, 33, 318-326.   DOI
6 Taylor, G.I., 1921, Experiments with rotating fluids. Proceedings of the Royal Society of London, Series A, 100, 114-121.   DOI
7 Vallis, G.K., 2006, Atmospheric and oceanic fluid dynamics: Fundamentals and large-scale circulation. Cambridge University Press, Cambridge, USA, 745 p.
8 Griffiths, R.W. and Veronis, G., 1997, A laboratory study of the effects of a sloping side boundary on winddriven circulation in a homogeneous ocean model. Journal of Marine Research, 55, 1103-1126.   DOI
9 Haidvogel, D.B., McWilliams, J.C., and Gent, P.R., 1992, Boundary current separation in a quasigeostrophic eddyresolving ocean circulation model. Journal of Physical Oceanography, 22, 882-902.   DOI
10 Hartmann, D.L., 1994, Global Physical Climatology. Academic Press, San Diego, USA, 411 p.
11 Hide, R., 1953, Some experiments on thermal convection in a rotating liquid. Quarterly Journal of the Royal Meteorological Society, 79, 161, doi:10.1002/qj.49707933916.   DOI
12 Hide, R., 1958, An experimental study of thermal convection in a rotating liquid, Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 250, 441-478.   DOI
13 Holton, J.R., 2004, An introduction to dynamic meteorology. Academic press, San Diego, USA, 535 p.
14 Pedlosky, J., 1987, Geophysical fluid dynamics. Springer-Verlag, New York, USA, 710 p.
15 Mallock, A., 1896, Experiments on fluid viscosity, Philosophical Transactions of the Royal Society of London. Series A, Containing Papers of a Mathematical or Physical Character, 187, 41-56.   DOI
16 MIT, 2010, http://ocw.mit.edu/OcwWeb/Earth--Atmospheric--and-Planetary-Sciences/12-003Fall-2008/Labs/detail/lab13.htm (검색일: 2010. 1. 5.)
17 Mellor, G.L., 1996, Introduction to physical oceanography. Springer-Verlag, New York, USA, 453 p.
18 Pedlosky, J., 1996, Ocean circulation theory. Springer-Verlag, Berlin, Germany, 453 p.
19 Pedlosky, J. and Greenspan, H.P., 1967, A simple laboratory model for the oceanic circulation. Journal of Fluid Mechanics, 27, 291-304.   DOI
20 소선섭, 이규현, 윤성석, 김명환, 손정호, 전창근, 진수광, 1995, 회전 원통수조 실험의 파동유형 분석. 한국기상학회지, 31, 159-168.   과학기술학회마을
21 소선섭, 신홍렬, 김명환, 윤성석, 손정호, 윤진석, 진수광, 전창근, 1997, 회전수조에서 나타나는 경압불안정파의 내부구조. 한국기상학회지, 33, 753-764.
22 Beardsley, R.C., 1969, A laboratory model of the winddriven ocean circulation. Journal of Fluid Mechanics, 38, 255-271.   DOI
23 조희형, 최경희, 2008, 과학교육의 이론과 실제. 교육과학사, 서울, 734 p.
24 한국지구과학회, 2002, 지구과학개론. 교학연구사, 서울, 818 p.
25 Adamec, D., 1997, Western boundary current separation sensitivity studies using a quasigeostrophic ocean model. Journal of Physical Oceanography, 27, 798-809.   DOI
26 Cenedese, C. and Whitehead, J.A., 2000, Eddy shedding from a boundary current around a cape over a sloping bottom. Journal of Physical Oceanography, 30, 1514-1531.   DOI
27 Gill, A.E., 1982, Atmosphere-ocean dynamics. Academic press, San Diego, USA, 662 p.
28 Greenspan, H.P., 1965, On the general theory of contained rotating fluid motions. Journal of Fluid Mechanics, 22, 449-462.   DOI