Characteristics of nonlinear internal waves observed in the northern South China Sea

Guangcheng Si; Yijun Hou; Peng Qi; Po Hu

doi:10.1007/s00343-010-9029-Y

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Characteristics of nonlinear internal waves observed in the northern South China Sea

Updated：2023-05-16

- Characteristics of nonlinear internal waves observed in the northern South China Sea
- Journal of Oceanology and Limnology Vol. 28, Issue 5, Pages: 1068-1072(2010)
- Affiliations：
  
  1. Institute of Oceanology Chinese Academy of Sciences
  2. Key Laboratory of Ocean Circulation and Waves (KLOCAW) Chinese Academy of Sciences
  3. Graduate University of Chinese Academy of Sciences
- Author bio：
- Funds：
- DOI：10.1007/s00343-010-9029-Y
  CLC：
- Online First：11 September 2010，
  
  Published：2010
- Accepted：
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Si, G., Hou, Y., Qi, P. et al. Characteristics of nonlinear internal waves observed in the northern South China Sea., Chin. J. Ocean. Limnol. 28, 1068–1072 (2010). https://doi.org/10.1007/s00343-010-9029-Y
DOI：

Si, G., Hou, Y., Qi, P. et al. Characteristics of nonlinear internal waves observed in the northern South China Sea., Chin. J. Ocean. Limnol. 28, 1068–1072 (2010). https://doi.org/10.1007/s00343-010-9029-Y DOI：

摘要

Abstract

The South China Sea (SCS) is one of the most active areas of internal waves. We undertook a program of physical oceanography in the northern South China Sea from June to July of 2009

and conducted a 1-day observation from 15:40 of June 24 to 16:40 of June 25 using a chain of instruments

including temperature sensors

pressure sensors and temperature-pressure meters at a site (117.5°E

21°N) northeast of the Dongsha Islands. We measured fluctuating tidal and subtidal properties with the thermistor-chain and a ship-mounted Acoustic Doppler Current Profiler

and observed a large-amplitude nonlinear internal wave passing the site followed by a number of small ones. To further investigate this phenomenon

we collected the tidal constituents from the TPXO7.1 dataset to evaluate the tidal characteristics at and around the recording site

from which we knew that the amplitude of the nonlinear internal wave was about 120 m and the period about 20 min. The horizontal and vertical velocities induced by the soliton were approximately 2 m/s and 0.5 m/s

respectively. This soliton occurred 2–3 days after a spring tide.

关键词

Keywords

references

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