Abstract
Based on the satellite altimeter data, it is found that the topography trapped wave (TTW) propagates along the continental shelf in the northern South China Sea (NSCS). The TTW obviously slows down while passing by the Dongsha Islands. Using a quasi-geostrophic equation including the topography effect, we found that the topographic gradient induced by the Dongsha Islands determines the propagation speed, leading to the slowdown of the TTW.
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References
Chen GX, Hou YJ, Chu XQ (2011) Mesoscale eddies in the South China Sea: mean properties, spatiotemporal variability, and impact on thermohaline structure. J Geophys Res 116:C06018. doi:10.1029/2010JC006716
Chow CH, Hu JH, Centurioni RL, Niiler PP (2008) Mesoscale Dongsha cyclonic eddy in the northern South China Sea by drifter and satellite observations. J Geophys Res 113:C04018. doi:10.1029/2007JC004542
Chu PC, Fan CW, Lozano CJ, Kerling JL (1998) An airborne expendable bathythermograph survey of the South China Sea, May 1995. J Geophys Res 103:21637–21652
Dong DP, Zhou WD, Yang Y, Du Y (2010) On outflow passages in the South China Sea. Adv Atmos Sci 27(1):60–68
Gan ZJ, Cai SQ (2001) Geographical and seasonal variability of rossby radii in South China Sea. J Trop Oceanogrphy 20(1):1–9 (in Chinese with English abstract)
Guo Z, Yang T, Qiu D (1985) The South China Sea warm current and the SW-ward current on its right side in winter (In Chinese). Trop Oceanology 4(1):1–9
Hetland RH, Hsueh Y, Leben RR, Niiler PP (1999) A loop current-induced jet along the edge of the West Florida shelf. Geophys Res Lett 26(15):2239–2242
Hurlburt HE, Thompson JD (1980) A numerical study of loop current intrusions and eddy shedding. J Phys Oceanogr 10:1611–1651
Li L, Nowlin WD, Su JL (1998) Anticyclonic rings from the Kuroshio in the South China Sea. Deep-Sea Res I 45:1469–1482
Li Y, Li L, Lin M, Cai W (2002) Observation of mesoscale eddy fields in the sea southwest of Taiwan by TOPEX/Poseidon altimeter data. Acta Oceanol Sin 24:163–170 (in Chinese with English abstract)
North GR, Thomas L, Robert B, Cahalan F, Moeng FJ (1982) Sampling errors in the estimation of empirical orthogonal functions. Mon Weather Rev 1982(110):699–706
Pedlosky J (1996) Ocean circulation theory. Spring-Verlag, pp 453
Sangrà P, Pelegrí JL, Hernández-Guerra A, Arregui I, Martín JM, Marrero-Díaz A, Martínez A, Ratsimandresy AW, Rodríguez-Santana A (2005) Life history of an anticyclonic eddy. J Geophys Res 110:C03021. doi:10.1029/2004JC002526
Shu YQ, Wang DX, Zhu J, Peng SQ (2011) The 4-D structure of upwelling and Pearl River plume in the northern South China Sea during summer 2008 revealed by a data assimilation model. Ocean Model 36:228–241
Su J, Lu J, Hou Y, Fang G, Wei Z, Yin B (2002) Analysis of satellite-tracked drifting buoys in the South China Sea. Oceanologia Limnol Sin 33(2):121–127 (in Chinese with English abstract)
Wang G, Su J, Chu PC (2003) Mesoscale eddies in the South China Sea observed with altimeter data. Geophys Res Lett 30:2121. doi:10.1029/2003GL018532, 21
Wang G, Chen D, Su J (2006) Generation and life cycle of the dipole in the South China Sea summer circulation. J Geophys Res 111:C06002. doi:10.1029/2005JC003314
Wang DX, Xu HZ, Lin J, Hu JY (2008) Anticyclonic eddies in the northeastern South China Sea during winter 2003/2004. J Oceanogr 64:925–935
Wang Q, Wang YX, Hong B, Zhou WD, Wang DX (2011) Different roles of Ekman pumping in the west and east segments of the South China Sea warm current. Acta Oceanol Sin 30(3):1–13
Wang DX, Wang Q, Zhou W, Cai S, Li L, Hong B (2013) An analysis of the current deflection around Dongsha Islands in the northern South China Sea. J Geophys Res Oceans 118:490–501. doi:10.1029/2012JC008429
Wang Q, Zeng L, Zhou W, Xie Q, Cai S, Yao J, Wang D (2015) Mesoscale eddies cases study at Xisha waters in the South China Sea in 2009/2010. J Geophys Res Oceans 120. doi:10.1002/2014JC009814
Wu CR, Chiang TL (2007) Mesoscale eddies in the northern South China Sea. Deep Sea Res II 54:1575–1588
Wyrtki K (1961) Physical oceanography of the Southeast Asian waters, scientific results of marine investigations of the South China sea and the Gulf of Thailand. NAGA Report, Scripps Institution of oceanography, La Jolla, CA, 2, 195
Xiu P, Chai F, Shi L, Xue HJ, Chao Y (2010) A census of eddy activities in the South China Sea during 1993–2007. J Geophys Res 115:C03012. doi:10.1029/2009JC005657
Xu FH, Oey LY (2015) Seasonal SSH variability of the northern South China Sea. J Phys Oceanogr 45:1595–1609
Xu XZ, Qiu Z, Chen HC (1982) The general descriptions of the horizontal circulation in the South China Sea. In: Proceedings of the 1980 Symposium on Hydrometeorology of the Chinese Society of Oceanology and Limnology, Sci. Press, Beijing. p. 137–145 (in Chinese with English abstract)
Yang HJ, Liu QY (2003) Forced Rossby wave in the northern South China Sea. Deep-Sea Res I 50:917–926
Yuan D, Han W, Hu D (2007) Anti-cyclonic eddies northwest of Luzon in summer-fall observed by satellite altimeters. Geophys Res Lett 34:L13610. doi:10.1029/2007GL029401
Acknowledgments
This study is supported by National Natural Science Foundation of China (No. 41406038, No. 41376026, and 41476014) and by the Strategic Priority Research Program of the Chinese Academy of Sciences (No. XDA11010302). The numerical calculation is supported by the high-performance computing division and Ms. Dandan Sui of the South China Sea Institute of Oceanology.
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Yang, Y., Wang, Y., Sui, J. et al. Slowdown of the topography trapped wave propagation by the Dongsha Islands in the northern South China Sea. Ocean Dynamics 66, 11–17 (2016). https://doi.org/10.1007/s10236-015-0904-0
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DOI: https://doi.org/10.1007/s10236-015-0904-0