Diurnal wind and nonlinear interaction between inertial and tidal currents in the South China Sea during the passage of Typhoon Conson

LIU Junliang; CAI Shuqun; WANG Shengan

doi:10.1007/s13131-014-0467-9

Diurnal wind and nonlinear interaction between inertial and tidal currents in the South China Sea during the passage of Typhoon Conson

doi: 10.1007/s13131-014-0467-9

1.
State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China;University of Chinese Academy of Sciences, Beijing 100049, China
2.
State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China

基金项目: The Knowledge Innovation Program of the Chinese Academy of Sciences under contract No. SQ201206; the Innovation Group Program of State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, under contract No. LTOZZ1201; the National Basic Research Program under contract No. 2013CB956101; the National Natural Science Foundation of China under contract No. 41025019.

计量
- 文章访问数: 1163
- HTML全文浏览量: 33
- PDF下载量: 1748
- 被引次数: 0
出版历程
- 收稿日期: 2013-07-23
- 修回日期: 2013-09-18

Diurnal wind and nonlinear interaction between inertial and tidal currents in the South China Sea during the passage of Typhoon Conson

1.
State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China;University of Chinese Academy of Sciences, Beijing 100049, China
2.
State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China

摘要

摘要: Diurnal wind (DW) and nonlinear interaction between inertial and tidal currents near the Xisha Islands of the South China Sea (SCS) during the passage of Typhoon Conson (2010) are investigated using observational data and a damped slab model. It is found that the DWs, which are dominated by clockwise wind components, are prominent at our observational site. The DWs increase after the passage of the typhoon from 1 to about 4 m/s, which may be due to the decrease of the sea surface temperature caused by the passage of the typhoon. Kinetic energy spectra and bicoherence methods reveal nonlinear interactions between the inertial currents and the 2MK₃ tidal constituent at our observational site. The slab damped model reproduces the inertial currents successfully induced by the total observed winds, and it is shown that the inertial currents induced by DWs are positively proportional to the DWs speed. Even though the observed inertial currents are distinct, the proportion of inertial currents induced by DWs to those induced by the total observed winds is just 0.7%/4% before/after the passage of typhoon. This shows that the inertial currents induced by the DWs are unimportant near the Xisha Islands during the typhoon season.
- diurnalwinds /
- typhoon /
- inertialcurrents /
- nonlinearinteraction /
- slabdampedmodels
Abstract: Diurnal wind (DW) and nonlinear interaction between inertial and tidal currents near the Xisha Islands of the South China Sea (SCS) during the passage of Typhoon Conson (2010) are investigated using observational data and a damped slab model. It is found that the DWs, which are dominated by clockwise wind components, are prominent at our observational site. The DWs increase after the passage of the typhoon from 1 to about 4 m/s, which may be due to the decrease of the sea surface temperature caused by the passage of the typhoon. Kinetic energy spectra and bicoherence methods reveal nonlinear interactions between the inertial currents and the 2MK₃ tidal constituent at our observational site. The slab damped model reproduces the inertial currents successfully induced by the total observed winds, and it is shown that the inertial currents induced by DWs are positively proportional to the DWs speed. Even though the observed inertial currents are distinct, the proportion of inertial currents induced by DWs to those induced by the total observed winds is just 0.7%/4% before/after the passage of typhoon. This shows that the inertial currents induced by the DWs are unimportant near the Xisha Islands during the typhoon season.
- diurnal winds /
- typhoon /
- inertial currents /
- nonlinear interaction /
- slab damped models

HTML全文

参考文献(25)

Elgar S, Guza R T. 1988. Statistics of bicoherence. IEEE Transactions on Acoustics, Speech, Signal Processing, 36: 1667-1668

Chen C, Reid R O, Nowlin W D. 1996. Near-inertial oscillations off the Texas-Louisiana shelf. Journal of Geophysical Research, 101: 3509-3524

Corkright M E, Lorcanini R A, Garcia H E, et al. 2002. World Ocean Atlas 2001: Objective Analyses, Data Statistics, and Figures: CD-ROM documentation. National Oceanographic Data Center

D'Asaro E A. 1985. The energy flux from the wind to near-inertial motions in the surface mixed layer. Journal of Physical Oceanography, 15: 943-959

Elsberry R S, Fraim T N, Trapnell R N. 1976. A mixed layer model of the oceanic thermal response to hurricanes. Journal of Geophysical Research, 81: 1153-1162

Gille S T, Llewellyn-Smith S G, Lee S M. 2003. Measuring the sea breeze from QuickSCAT scatterometry. Geophysical Research Letters, 30: doi: 10.1029/2002GL016230

Gille S T, Llewellyn-Smith S G, Statom N M. 2005. Global observations of the land breeze. Geophysical Research Letters, 32: doi: 10.1029/2004GL022139

Gill A E. 1982. Atmosphere-ocean Dynamics. New york: Academic Press, 662

Hinich M J, Wolinsky M. 2005. Normalizing bispectra. Journal of Statistical Planning and Inference, 130: 405-411

Hyder P, Simpson J H, Xing J, et al. 2011. Observations over an annual cycle and simulations of wind-forced oscillations near the critical latitude for diurnal-inertial resonance. Continental Shelf Research, 31: 1576-1591

Kim Y C, Powers E J. 1979. Digital bispectral analysis and its application to nonlinear wave interactions. IEEE Transactions on Plasma Science Press, 7: 120-131

Leaman K D, Sanford T B. 1975. Vertical energy propagation of internal waves: a vector spectral analysis of velocity profiles. Journal of Geophysical Research, 80: 1975-1978

Liu Junliang, Cai Shuqun, Wang Shengan. 2011. Observations of strong near-bottom current after the passage of Typhoon Pabuk in the South China Sea. Journal of Marine System, 87: 102-108

Muller P, Holloway G, Henyey F, et al. 1986. Non-linear interactions among internal gravity waves. Reviews of Geophysical, 24: 493- 536

Pollard R T, Millard R C. 1970. Comparison between observed and simulated wind-generated inertial oscillations. Deep-Sea Research, 17: 813-821

Price J F. 1983. Internal wave wake of a moving storm. Part I: Scales, energy budget and observations. Journal of Physical Oceanography, 13: 949-965

Simpson J E. 1994. Sea Breeze and Local Wind. Cambridge: Cambridge University Press, 234

Sun Lu, Zheng Quanan, Wang Dongxiao, et al. 2011. A case study of near-inertial oscillation in the South China Sea using mooring observations and satellite altimeter data. Journal of Oceanography, 56(6): doi: 10.1007/s10872-011-0081-9

van Haren H. 2004. Some observations of nonlinearly modified internal wave spectra. Journal of Geophysical Research, 109: C03045

van Haren H. 2005. Tidal and near-inertial peak varations around the diurnal critical latitude. Geophysical Research Letters, 32: L23611, doi: 10.1029/2005GL024160

Wang Guihua, Zheng Ling, Wang Chunzai. 2009. Influence of tropical cyclones on seasonal ocean circulation in the South China Sea. Journal of Geophysical Research, 114: C10022, doi: 10.1029/2009JC005302

Xie Xiaohui, Shang Xiaodong, Chen Guiying. 2010. Nonlinear interactions among internal tidal waves in the South China Sea. Chinese Journal of Oceanology and Limnology, 28: 996-1001

Xing J, Davies A M. 2002. Processes influencing the non-linear interaction between inertial oscillations, near-inertial internal waves and internal tides. Geophysical Research Letters, 29(1-4): 1067

Zhang X Q, Liang X F, Tian J W. 2005. Study on internal tides and nearinertial motions in the upper 450 m ocean in the northern South China Sea. Chin Sci Bull, 50: 2027-2031

Zhang Xiaoqian, Smith I V C, Dimarco S F, et al. 2010. A numerical study of sea-breeze-driven ocean Poincare wave propagation and mixing near the critical latitude. Journal of Physical Oceanography, 40: 48-66

施引文献

资源附件(0)

访问统计

点击查看大图

计量

文章访问数: 1163
HTML全文浏览量: 33
PDF下载量: 1748
被引次数: 0

Diurnal wind and nonlinear interaction between inertial and tidal currents in the South China Sea during the passage of Typhoon Conson

doi: 10.1007/s13131-014-0467-9

计量

出版历程

Diurnal wind and nonlinear interaction between inertial and tidal currents in the South China Sea during the passage of Typhoon Conson

计量

出版历程

目录