Internal solitary waves on the southwest shelf of Dongsha Island observed from mooring ADCP

Feilong Lin; Yijun Hou; Yahao Liu; Yong Fang; Po Hu

doi:10.1007/s00343-014-3254-8

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Internal solitary waves on the southwest shelf of Dongsha Island observed from mooring ADCP

Updated：2023-05-16

- Internal solitary waves on the southwest shelf of Dongsha Island observed from mooring ADCP
- Journal of Oceanology and Limnology Vol. 32, Issue 5, Pages: 1179-1187(2014)
- Affiliations：
  
  1. Institute of Oceanology Chinese Academy of Sciences
  2. Key Laboratory of Ocean Circulation and Waves (KLOCAW) Chinese Academy of Sciences
  3. University of Chinese Academy of Sciences
- Author bio：
- Funds：
- DOI：10.1007/s00343-014-3254-8
  CLC：
- Online First：18 July 2014，
  
  Published：2014
- Accepted：
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Lin, F., Hou, Y., Liu, Y. et al. Internal solitary waves on the southwest shelf of Dongsha Island observed from mooring ADCP., Chin. J. Ocean. Limnol. 32, 1179–1187 (2014). https://doi.org/10.1007/s00343-014-3254-8
DOI：

Lin, F., Hou, Y., Liu, Y. et al. Internal solitary waves on the southwest shelf of Dongsha Island observed from mooring ADCP., Chin. J. Ocean. Limnol. 32, 1179–1187 (2014). https://doi.org/10.1007/s00343-014-3254-8 DOI：

摘要

Abstract

Internal solitary waves (ISWs) are frequently observed in the area between Dongsha Island (DI) and Taiwan Island. However

there have been few in-situ observations southwest of DI. To improve our knowledge of ISWs in this area

we observed the ISWs over the continental shelf (115.4°E

20.3°N) from Aug. 29 to Oct. 10

2011 with temperature sensors and an acoustic Doppler current profiler (ADCP). The observations showed that the a fully developed ISW produced a current whose maximum westward velocity was 0.92 m/s and maximum northward velocity was 0.47 m/s. During the 41-day observation period the ISWs appeared for three periods with about 7-day gaps between each period. During each day

two types of ISWs were observed. The first type of wave arrived regularly diurnally at the same time each day

with a similar pattern to that of the type-a wave identified by Ramp et al. (2004). The second type arrived about 12 h after the first type and was delayed about 1 hour each day; this wave type was related to the type-b wave. Thus

our observations confirmed that both type-a and type-b waves can reach the area southwest of the DI. Moreover

the waves observed by the mooring propagated toward the directions of 270°–315° clockwise from true north

indicating obvious refraction from uneven topography around DI.

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