Abstract
The mechanisms of establishment and adjustment of the basin-scale circulation in the South China Sea (SCS) during the monsoon-forced spin-up are investigated using a high resolution circulation model in this paper. The process, in which the upper layer in the SCS evolved from the motionless state to the one when the basin-scale circulation initially established, was described, and the participation of various Kelvin and Rossby waves and their traveling time scales in different stages was revealed. It shows that the coastal trapped Kelvin waves and the westward propagating Rossby waves play important roles in the adjustment of the basin-scale circulation. Furthermore, the characteristic timescale of establishment for the basin-scale circulation in the upper layer of the SCS was obtained.
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Su Jilan, Dynamics of the circulation in the northern South China Sea, in Prospects on the Basic Study for the Environment and Resource in the South China Sea (in Chinese) (ed. Su Jilan), Beijing: Ocean Press, 2001, 1–7.
Wang Dongxiao, Multiple space-time scales of the circulation and the local air-sea interaction in the South China Sea, in Prospects on the Basic Study for the Environment and Resource in the South China Sea (in Chinese) (ed. Su Jilan), Beijing: Ocean Press, 2001, 38–47.
Pedlosky, J., Anote on the western intensification of the oceanic circulation, J. Mar. Res., 1965, 23: 207–210.
Pedlosky, J., Geophysical Fluid Dynamics, New York: Springer-Verlag, 1987, 710.
Liu, Z., Wu, L., Bayler, E., Rossby wave-coastal Kelvin wave interaction in the extratropics, Part I: Low-frequency adjustment in a closed basin, J. Phys. Oceanogr., 1999, 29: 2382–2404.
Anderson, D. L. T., Gill, A. E., Spin-up of a stratified ocean, with application to upwelling, Deep-Sea Res., 1975, 22: 593 -596.
Schwab, D. J., Beletsky, D., Propagation of Kelvin waves along irregular coastlines in finite-difference models, Advances in Water Resources, 1998, 22(3): 239–245.
Mellor, G. L., User’s Guide for a Three-Dimensional, Primitive Equation, Numerical Ocean Model, Program in Atmospheric and Oceanic Sciences, Princeton: Princeton University Press, 1998.
Wyrtki, K., Physical oceanography of the southeast Asian waters, in NAGA Report 2, Scientific Results of Marine Investigation of the South China Sea and the Gulf of Thailand, La Jolla: Scripps Inst. of Oceanogr, 1961, 195.
Gill, A. E., Adjustment under gravity in a rotating channes, J. Fluid Mech., 1976, 77: 603–621.
Wajsowicz, R. C., Gill, A. E., Adjustment of the ocean under buoyancy forces, Part I: the role of Kelvin waves, J. Phys. Oceanogr., 1986, 16: 2097–2114.
Chen Dake, Su Jilan, The primary study about coastal waves in the China seas, Acta Oceanologica Sinica (in Chinese), 1987,9(1): 1–15.
Gan Zijun, Cai Shuqun, Geographical and seasonal variability of Rossby radii in the South China Sea, Journal of Tropical Oceanography (in Chinese), 2001, 20(1): 1–9.
Wajsowicz, R. C., Adjustment of the ocean under buoyancy forces, Part II: the role of Planetary waves. J. Phys. Oceanogr., 1986,16: 2115–2136.
Hu Jianyu, Kawamura Hiroshi, Hong Huashenget al., 3–6 months variation of sea surface height in the South China Sea and its adjacent ocean, Journal of Oceanography, 2001, 57: 69–78.
Cai Shuqun, Su Jilan, Gan Zijunet al., The numerical study of the South China Sea upper circulation characteristics and its dynamic mechanism in winter, Acta Oceanologica Sinica(in Chinese), 2001, 23(5): 14–23.
Liu Zhengyu, Yang Haijun, Liu Qinyun, Regional dynamics of seasonal variability of sea surface height in the South China Sea, J. Phys. Oceanogr., 2001, 31: 272–284.
Isobe Atsuhiko, Namba Takaya, The circulation in the upper and intermediate layers of the South China Sea, Journal of Oceanography, 2001, 57: 99–104.
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Wang, D., Wang, W., Shi, P. et al. Establishment and adjustment of monsoon-driven circulation in the South China Sea. Sci. China Ser. D-Earth Sci. 46, 173–181 (2003). https://doi.org/10.1360/03yd9016
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DOI: https://doi.org/10.1360/03yd9016