Study on tidal characteristics of coral reef lagoon of Xisha Islands in the South China Sea based on mooring observation

Zhu Mingquan; Cen Xianrong; Lu Yuanzheng; Guo Shuangxi; Qu Ling; Huang Pengqi; Fang Wendong; Chen Ju; Zhou Shengqi

doi:10.12284/hyxb2022119

Volume 44 Issue 9

Aug. 2022

Turn off MathJax

Article Contents

Article Navigation > Haiyang Xuebao > 2022 > 44(9): 55-62

Zhu Mingquan，Cen Xianrong，Lu Yuanzheng, et al. Study on tidal characteristics of coral reef lagoon of Xisha Islands in the South China Sea based on mooring observation[J]. Haiyang Xuebao，2022, 44(9)：55–62 doi: 10.12284/hyxb2022119

Citation:

PDF( 2079 KB)

Study on tidal characteristics of coral reef lagoon of Xisha Islands in the South China Sea based on mooring observation

doi: 10.12284/hyxb2022119

Zhu Mingquan^{1, 7
,},
Cen Xianrong⁴,
Lu Yuanzheng^{1, 2, 3},
Guo Shuangxi^{1, 2, 3, 7},
Qu Ling⁵,
Huang Pengqi^{1, 2, 3},
Fang Wendong^{1, 2, 7},
Chen Ju^{1, 2, 6},
Zhou Shengqi^{1, 2, 3, 7
,
,}

1.
State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
2.
Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
3.
Institute of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou 510301, China
4.
School of Industrial Design and Ceramic Art, Foshan University, Foshan 528225, China
5.
Geophysical Exploration Brigade of Hubei Geological Bureau, Wuhan 430056, China
6.
Hainan Xisha Marine Environment National Observation and Research Station, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
7.
University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2021-07-03
Rev Recd Date: 2022-01-29

Available Online: 2022-06-23

Publish Date: 2022-08-29

Abstract

Abstract

Based on the 29-day full-depth mooring data of coral reef lagoon of Xisha Islands in South China Sea, we investigated the characteristics of the internal tides (ITs), the applicability of depth-averaging method for current analysis, and the source of ITs. The depth-averaged currents indicated that the diurnal tides were dominant, their HKE (horizontal kinetic energy) accounted for 41% of the total currents. The harmonic analyses of depth-averaged current and Tpxo7.2 model current indicated that the barotropic diurnal currents were modulated by topography, its main axis orientation was northwest-southeast. The spring-neap periods of barotropic diurnal currents with two methods have the half-phase shift (6−7 days). It is proposed that the depth-averaged barotropic diurnal currents contain the baroclinic diurnal components (diurnal internal tides) due to the lacking of measurements near the surface and bottom ocean. Further analysis showed that the barotropic and baroclinic diurnal currents had different amplitudes with the variable phase shift. The coherent diurnal ITs contributed 91% HKE to the total diurnal ITs, which implied that ITs was most generated in Xisha Islands.
- coral reef lagoon,
- internal tide,
- coherent internal tide,
- barotropic tide

FullText(HTML)

References(28)

References

[1]	Briscoe M G. Internal waves in the ocean[J]. Reviews of Geophysics, 1975, 13(3): 591−598. doi: 10.1029/RG013i003p00591
[2]	Munk W, Wunsch C. Abyssal recipes II: energetics of tidal and wind mixing[J]. Deep-Sea Research Part I: Oceanographic Research Papers, 1998, 45(12): 1977−2010. doi: 10.1016/s0967-0637(98)00070-3
[3]	Wang Yuhuai, Dai Changfeng, Chen Y Y. Physical and ecological processes of internal waves on an isolated reef ecosystem in the South China Sea[J]. Geophysical Research Letters, 2007, 34(18): L18609. doi: 10.1029/2007GL030658
[4]	Osborne A R, Burch T L. Internal solitons in the Andaman Sea[J]. Science, 1980, 208(4443): 451−460. doi: 10.1126/science.208.4443.451
[5]	Duda T F, Lynch J F, Irish J D, et al. Internal tide and nonlinear internal wave behavior at the continental slope in the northern South China Sea[J]. IEEE Journal of Oceanic Engineering, 2004, 29(4): 1105−1130. doi: 10.1109/JOE.2004.836998
[6]	Simmons H, Chang M H, Chang Yating, et al. Modeling and prediction of internal waves in the South China Sea[J]. Oceanography, 2011, 24(4): 88−99. doi: 10.5670/oceanog.2011.97
[7]	Beardsley R C, Duda T F, Lynch J F, et al. Barotropic tide in the Northeast South China Sea[J]. IEEE Journal of Oceanic Engineering, 2004, 29(4): 1075−1086. doi: 10.1109/JOE.2004.833226
[8]	Alford M H, Peacock T, MacKinnon J A, et al. The formation and fate of internal waves in the South China Sea[J]. Nature, 2015, 521(7550): 65−69. doi: 10.1038/nature14399
[9]	Zhao Ruixiang, Zhu Xiaohua, Park J H, et al. Internal tides in the northwestern South China Sea observed by pressure-recording inverted echo sounders[J]. Progress in Oceanography, 2018, 168: 112−122. doi: 10.1016/j.pocean.2018.09.019
[10]	van Haren H. Incoherent internal tidal currents in the deep ocean[J]. Ocean Dynamics, 2004, 54(1): 66−76. doi: 10.1007/s10236-003-0083-2
[11]	Kelly S M, Nash J D. Internal-tide generation and destruction by shoaling internal tides[J]. Geophysical Research Letters, 2010, 37(23): L23611. doi: 10.1029/2010GL045598
[12]	王越, 黄晓冬, 杨运超, 等. 南海东北部全日非相干内潮的特征及其成因[J]. 中国海洋大学学报, 2021, 51(5): 1−9. doi: 10.16441/j.cnki.hdxb.20200175 Wang Yue, Huang Xiaodong, Yang Yunchao, et al. Characteristics and cause analysis of diurnal incoherent internal tides in the northeastern South China Sea[J]. Periodical of Ocean University of China, 2021, 51(5): 1−9. doi: 10.16441/j.cnki.hdxb.20200175
[13]	翟荣伟, 陈桂英, 尚晓东. 南海北部相干内潮和非相干内潮演变特征[J]. 海洋学报, 2017, 39(11): 24−36. doi: 10.3969/j.issn.0253-4193.2017.11.003 Zhai Rongwei, Chen Guiying, Shang Xiaodong. Evolution characteristics of coherent and incoherent internal tides in the northern South China Sea[J]. Haiyang Xuebao, 2017, 39(11): 24−36. doi: 10.3969/j.issn.0253-4193.2017.11.003
[14]	梁辉, 郑洁, 田纪伟. 南海西北陆坡区内潮与近惯性内波观测研究[J]. 海洋学报, 2016, 38(11): 32−42. doi: 10.3969/j.issn.0253-4193.2016.11.003 Liang Hui, Zheng Jie, Tian Jiwei. Observation of internal tides and near-inertial internal waves on the continental slope in the northwestern South China Sea[J]. Haiyang Xuebao, 2016, 38(11): 32−42. doi: 10.3969/j.issn.0253-4193.2016.11.003
[15]	Storlazzi C D, Cheriton O M, van Hooidonk R, et al. Internal tides can provide thermal refugia that will buffer some coral reefs from future global warming[J]. Scientific Reports, 2020, 10(1): 13435. doi: 10.1038/s41598-020-70372-9
[16]	Lee I H, Wang Yuhuai, Yang Y, et al. Temporal variability of internal tides in the Northeast South China Sea[J]. Journal of Geophysical Research: Oceans, 2012, 117(C2): C02013. doi: 10.1029/2011JC007518
[17]	Wu Ziku, Lu Xiangqing, Tian Jiwei. Simulation of barotropic and baroclinic tides in the South China Sea[J]. Acta Oceanologica Sinica, 2005, 24(2): 1−8.
[18]	邓晓东, 刘军亮, 蔡树群. 南海西沙群岛陆架区的潮流特征分析[J]. 热带海洋学报, 2013, 32(4): 8−12. doi: 10.3969/j.issn.1009-5470.2013.04.002 Deng Xiaodong, Liu Junliang, Cai Shuqun. Analyses of the tidal current characteristics on the continental shelf of the Xisha Islands in the South China Sea[J]. Journal of Tropical Oceanography, 2013, 32(4): 8−12. doi: 10.3969/j.issn.1009-5470.2013.04.002
[19]	Egbert G D, Erofeeva S Y. Efficient inverse modeling of barotropic ocean tides[J]. Journal of Atmospheric and Oceanic Technology, 2002, 19(2): 183−204. doi: 10.1175/1520-0426(2002)019<0183:EIMOBO>2.0.CO;2
[20]	Holloway P E, Chatwin P G, Craig P. Internal tide observations from the Australian north west shelf in summer 1995[J]. Journal of Physical Oceanography, 2001, 31(5): 1182−1199. doi: 10.1175/1520-0485(2001)031<1182:Itofta>2.0.Co;2
[21]	Kurapov A L, Egbert G D, Allen J S, et al. The M₂ internal tide off Oregon: inferences from data assimilation[J]. Journal of Physical Oceanography, 2003, 33(8): 1733−1757. doi: 10.1175/2397.1
[22]	Martini K I, Alford M H, Kunze E, et al. Observations of internal tides on the Oregon continental slope[J]. Journal of Physical Oceanography, 2011, 41(9): 1772−1794. doi: 10.1175/2011JPO4581.1
[23]	Xu Zhenhua, Yin Baoshu, Hou Yijun, et al. Variability of internal tides and near-inertial waves on the continental slope of the northwestern South China Sea[J]. Journal of Geophysical Research: Oceans, 2013, 118(1): 197−211. doi: 10.1029/2012JC008212
[24]	Codiga D L. Unified tidal analysis and prediction using the UTide Matlab functions[R]. Narragansett: University of Rhode Island, 2011.
[25]	van Haren H. Bottom-pressure observations of deep-sea internal hydrostatic and non-hydrostatic motions[J]. Journal of Fluid Mechanics, 2013, 714: 591−611. doi: 10.1017/jfm.2012.507
[26]	Holloway P E, Merrifield M A. On the spring-neap variability and age of the internal tide at the Hawaiian ridge[J]. Journal of Geophysical Research: Oceans, 2003, 108(C4): 3126. doi: 10.1029/2002jc001486
[27]	Davis K A, Arthur R S, Reid E C, et al. Fate of internal waves on a shallow shelf[J]. Journal of Geophysical Research: Oceans, 2020, 125(5): e2019JC015377. doi: 10.1029/2019jc015377
[28]	Lowe R J, Falter J L. Oceanic forcing of coral reefs[J]. Annual Review of Marine Science, 2015, 7: 43−66. doi: 10.1146/annurev-marine-010814-015834